This is how you recognize a great instructor..As the video was going i was coming up with questions (why? what about? what if?) and by the end of the video all of my questions were answered. Much props to you Mr Danner. Hector from Los Angeles California..East to West education baby!!!!
@meathead585
11 жыл бұрын
This is absolutely the best type of video for car repairs. A breath of fresh air after seeing so many non informative videos.
@ScannerDanner
12 жыл бұрын
@bobby8926 surprisingly, it is very reliable, I have yet to see one of these module go bad. Every time I have diagnosed a low or no fuel pressure problem on these it was always the pump. However the modules can definitely fail, so I thought it was important to show the complete test.
@rodnewcomb
10 жыл бұрын
Thank you so much for posting this. You saved me hours of guessing, saved me tons in parts, and I learned some GREAT stuff here from this video!
@patrickcayton3072
6 жыл бұрын
Hey you just saved my life with this video. My 06 Mercury mountaineer died on me a few weeks ago. I changed fuel pump and fuel pressure sensor and nothing. I started checking ground wires and found the problem. Im now up and running again. Thank you so much for your information
@ScannerDanner
6 жыл бұрын
no problem! So you found a bad ground wire to the fuel pump module?
@patrickcayton3072
6 жыл бұрын
ScannerDanner I believe it was a ground. Was having the same type of symptoms. rpms would bounce a little with blinkers on along with dash lights would flicker. Eventually it corroded all the way through leaving me at a stop light
@artman102
8 жыл бұрын
Thanks, you saved me a lot of worry and money. I was pounding a dent out on a friends Taurus, driver side rear quarter panel. I could hear an occasional noise like a tape measure snapping back. Well, when I finished, the car would not start. I found the inertia switch in the LH of the trunk, pushed the red button down and it started right up. thanks again
@StumpyVanLife
10 ай бұрын
Great video. I am a professional auto tech and just had an issue with a 2014 F150 Fuel pump. Several weeks ago the fuel pump failed, I properly diagnosed it and checked the operation of this fuel pump control module. Replaced the fuel pump and got the truck going again for the customer. Well two weeks later It died on the customer again. This time it was a bad fuel pump control module. What must of happened was when the fuel pump failed it drew a high amperage and damaged or weakened the control module. It lived on for about two weeks but then failed. I think from this point forward when I replace a bad fuel pump I am also going to recommend this module be replaced as well. In this case the module was $60, cheap insurance to prevent a future breakdown.
@user-uj1xg7hb2u
4 ай бұрын
I will never be a Parts Changer, Seriously you paul you are making me to be professional and advanced Auto Electrician, in City here in Malawi
@ScannerDanner
4 ай бұрын
That's awesome. Glad to have you on board.
@larrybrown4753
5 жыл бұрын
A GREAT informative and detailed video. Your knowledge and presentation of it is very impressive for a teacher! I know your students are very lucky to have you instruct them! I had no idea there were so many electronic parts in line affecting the operation of a fuel pump on some vehicles. Thank You for a great job of sharing your wisdom!
@thestateofreal2533
3 жыл бұрын
Hey brother! Me again, we talked a couple months ago about a 2017 Ford Focus SE. You will be happy to know that I have diagnosed all of my electrical issues which lead me to determine that the PCM was for sure bad. I bought a new used pcm (correct PN) and went to use IDS to reprogram it and IDS would not for the life of me recognize the car as a Ford Focus...it kept recognizing it as a CMAX. After hours of diagnostic work and talking to my friend who is a “lead technician at Ford”...no luck. He kept telling me to replace parts which as we know is not the way you diagnose/ fix problems cheaply. I ignored it and decided to look into a electronic TB clicking noise that he told me not to worry about. Needless to say when I unplugged the TB, I was able to reprogram the pcm as IDS recognized it THEN as the correct year make and model. After doing all that and reprogramming PATS, the car cranked kinda intermittently with both keys which was a leap of confidence as it didn’t do that before. When I did a system test with IDS, all modules passed with flying colors but obviously I had a code for the TB. The challenge now is that every time I plug the TB in it begins clicking and I get a no communication with PCM 😭
@ScannerDanner
3 жыл бұрын
maybe it is shorting out the 5v ref circuit when you plug the throttle body in. Do some voltage measurements on that unit and in particular the TPS circuits
@thestateofreal2533
3 жыл бұрын
@@ScannerDanner I am pretty sure I did and it was good. I will check again. Oddly enough I found a video in the depths of KZitem that a guy was experiencing the same symptoms: kzitem.info/news/bejne/mW-b2HaKr4OYhqw He dropped it off at Ford and they said it was a faulty fuel pressure sensor which fixed the problem. I will be checking the two fuel pressure sensors as well. I’m assuming in his situation the ecu wasn’t receiving correct pressures to allow the TB to calibrate correctly at key position 2.
@ScannerDanner
12 жыл бұрын
@TRcustomengineering Thanks bro, stay tuned, I am going to review this with my class today, using the case study in my book on this same system. I will post the lecture when I am done.
@rexluongo6470
2 жыл бұрын
Where is the lecture posted ? I would like to see it.
@ScannerDanner
2 жыл бұрын
@@rexluongo6470 offhand I don't have a link but it would most likely in my chapter 15 playlist (Fuel Pump Electrical Circuits) or 16 (Fuel Pressure Testing)
@rexluongo6470
2 жыл бұрын
@@ScannerDanner If a maf sensor is replaced with a bad maf. Where do you buy a good one? Just asking because I figured out one of my issues. MAF is bad. Replaced it with oreillys new MAF, runs normal at idle but now runs lean at throttle and high rpm only. It used to be the opposite or just ran lean all the time. Throttle response improved tremendously. So I am pretty sure I got a bad MAF. What is your expert opinion?
@ScannerDanner
12 жыл бұрын
@AutoTechHector Thank you so much Hector, what a great compliment. And I was hoping this video was clear. I was concerned about parts of it. I tried to clear it up even more with part 2, but it may be a little overkill.
@NOEISY1
12 жыл бұрын
HI PAUL i wrote you like a month ago on my 2005 nissan pathfinder getting STfueltrim 11 to 12 and my LONGfueltrim 9.4 and my o2 reading lean bank 1 and very poor mpg about 9.5. i just went an change the o2 wide band, no luck.Today i have tdc 340 i went n change camshaft p.s for bank 1 and back to nomal my MPG it now at 15.2,im really HAPPY .THANK YOU FOR ALL YOUR VIDEOS ...
@TALAMANCA17
12 жыл бұрын
Yes we do, alot of american, GMC, FORD, AMERICAN JAPANASE. so. i don;t understand inglish lot, my inglish is medium ,but you explain everything good, and watch the video help a lot , so thanks so much to share your videos,
@Tommy_Mac
11 жыл бұрын
Thanks ScannerDanner! I have a '03 Taurus with an intermittent start condition. I don't have a correct manual on hand and this is a great help to get to the issue. I couldn't find the fuel pump control module on the car to troubleshoot it. Awesome help!
@roro560v8
12 жыл бұрын
That's a brilliant diagnostic job, keep it up we need these info.
@ScannerDanner
12 жыл бұрын
the rail pressure sensor is the only "feedback" signal but the PCM uses all of the other inputs to determine what the ideal pressure should be
@arcadiogalindez6407
2 жыл бұрын
and just like that once again i just gained a bunch of knowledge thank you
@billrimmer5596
5 жыл бұрын
I have a 2000 Taurus today. Glad I reviewed this vid. Super comprehensive. Gotta love the MT 2400
@ScannerDanner
12 жыл бұрын
@bobby8926 Good question, I have to say that I am not seeing these pumps fail any more than a conventional one.
@ScannerDanner
12 жыл бұрын
@Alfvaldez great question. i have a video on this that should be uploaded by tomorrow. look for it. it's really good
@ScannerDanner
11 жыл бұрын
the key is to understand that this pump is ground side switched. so when the pump is turned off you should see full battery voltage on the pump ground. since we see low voltage this indicates a brush to motor contact problem.
@nellyxavier8923
3 жыл бұрын
Thank you Mr Danner Sello. S.Africa
@snj4807
5 жыл бұрын
I will work on it in the morning thanks again for your help.
@SecurityPro2704
12 жыл бұрын
Great video, very informative. Better than many manufacturer training videos.
@nickayivor8432
2 жыл бұрын
Prodigy Sir ScannerDanner Tutorial great video brilliant Take care and have a great day Sir ScannerDanner From Nick Ayivor from London England UK 🇬🇧
@mrbadpliersstripbolt2696
9 жыл бұрын
Excellent! Wish I would have watched this yesterday before diagnosing. On another note, (2004 ford explorer, 4.0, crank/start no power, 3000 rpm in neutral max) I did it differently in the end by jumping the pump power to incoming power (wt/rd to pk/bk), jumped pump ground (bk/pnk) to chassis ground, pump ran fine (I could hear it), still showed low pressure on scan tool, and under load pressure fell away until stalling. Pulled the filter and turned the car on only to watch the fuel dribble out of the line. I have never seen a pump that runs aurally fail. I suppose it could be the in tank regulator failing, or the sock is clogged up. Either way, it's time to pull the tank. Thanks for your post!
@ScannerDanner
12 жыл бұрын
We all need help sometimes. Thanks for the comment!
@ScannerDanner
12 жыл бұрын
@JohnzCarz I don't think I would use an LED type test light but a regular test light you will have no problem with whatsoever. There is not enough current to damage the bulb filament.
@Poochie43124312
10 жыл бұрын
Thanks Dan, lots of information, but very helpful information.
@HighestRank
10 жыл бұрын
Lots more in part two.this its just the tip of a very long but spender Pittsburgh iceberg.
@rjmlondon
10 ай бұрын
Thanks for a nice explanation. I hv a ford mustang 2014, same system. It runs but struggles to start. Key on engine off has 41psi but rapidly drops to zero psi after a few seconds. My understanding should keep pressure in the line as it has check valve.
@ScannerDanner
10 ай бұрын
Is this a GDI system?
@JasonSmith-qx3zh
4 жыл бұрын
Best post yet dealing with no fuel pressure for me ! Guy has freakin thunder cats knowledge, but the more I listen the better I get! Just wish you would do a f150 with that dual tank switch . Oh yeah where are the best grounds in cockpit areas where do you 1st look for grounds for your test light.
@jdwrench
11 жыл бұрын
New tech and old school common sense. Great job. I love your Hat pin test probes. There is an electronics engineer rolling over in his grave somewhere.
@motecalevol
6 жыл бұрын
Great video. Having a similar problem with 2005 Grand Marquis.
@ScannerDanner
12 жыл бұрын
It does and I can on a different car in the future as this one is fixed and back to the customer. Testing is identical to any pressure sensor. 5v reference, signal and a ground. Signal voltage is analog and changes in proportion to fuel rail pressure. Low voltage, around .5 volt = 0 psi (if I remember correctly)
@cotesgarage3391
8 жыл бұрын
doing a no start on a 08 escape FPM I believe watched ur vid very informative :)got a chuckle when u forgot the students name,,,,it would take me a few months to get the students names usually end up givin some of them nick names....
@ScannerDanner
8 жыл бұрын
+Terry Cote it's getting worse the older I get :)
@okexcavatingltd.3556
5 жыл бұрын
Well done video, very complete/detailed info very helpful, thanks
@mdjahidjahidansari6255
4 жыл бұрын
Sir I watch your every vidio
@abdikarimaadan4043
3 жыл бұрын
Thanks for your help I learned a lot
@ScannerDanner
12 жыл бұрын
Great man, glad to here it. Sorry I didn't help you with that one.
@pony053
Жыл бұрын
My 99 Cobra has the same single ended pump.....just failed, great info
@ScannerDanner
Жыл бұрын
Thank you! You should be able to troubleshoot your system then. If you have any questions, ask them!
@Slipknot-qm9yh
Жыл бұрын
Urgent help needed! Got my hands on a car, 2003 police version. Engine will not start. Runs for 10 seconds in the morning after starting it and won't start it again during the day. I have changed the crankshaft sensor, idle valve, fuel pump control unit. There are no errors in the diagnostic scanner. Also in the scanner I can see the engine RPM, fuel pressure and other parameters that are normal. I can see pulses on the coils and injectors connected with lights when trying to start. I've checked all the fuses and relays, tested the wiring. The spark plugs in the engine are new, compression in the cylinders is fine. Have not been able to cope for a week now. Help with advice or action.
@henrya1052
6 жыл бұрын
great video. Helped a bunch.
@ScannerDanner
12 жыл бұрын
I'll get back to you next week. On my way to camp where there are no electronics! Off hand I am not sure what a " Kenna bell boost a pump" is.
@tomford7463
3 жыл бұрын
ScannerDanner tha man-ner!! Great vid bud!
@mikehigby7897
3 жыл бұрын
Return less systems use a variable voltage fuel pump and the computer has it inject exactly what the fuel demands require. The reason for this is to prolong the life of the fuel pump. Return systems have a constant voltage feed with a constant static pressure that only increases under load due to the vacuum side of the fuel pressure regulator allowing the diaphragm to open or close. This is why fuel pumps in return less systems last longer than pumps in Return systems. The returnless has the ability to run low voltages at the pump when at idle or light load.
@ScannerDanner
12 жыл бұрын
thanks very much!
@PIERPILING
7 жыл бұрын
HAVE A 2002 FORD MUSTANG GT. 4.6L V8. WHERE IS THE FUEL PUMP DRIVER MODULE LOCATED ON THIS VEHICLE?
@ScannerDanner
12 жыл бұрын
@CoolasIce2 In the field I don't see these being any more or less reliable. I understand both points of view though.
@matthewmiller2728
8 жыл бұрын
Awesome video I'm having the same issues on my 1989 Taurus sho
@ScannerDanner
8 жыл бұрын
+Matthew Miller in 1989 they didn't use electronic return less systems
@blackericdenice
6 жыл бұрын
ScannerDanner I was thinking the same thing.
@TALAMANCA17
12 жыл бұрын
Good job, Danner, thanks, muchas gracias, from Costa Rica.
@jwlivingston1
10 жыл бұрын
Excellent video, got the same car with what looks like the same problem, hopefully it is
@HighestRank
10 жыл бұрын
Lol you've got a meter that can measure duty-cycle? I'm impressed.
@Ltngdrvr
10 жыл бұрын
Can you not also test the pump by wiring it directly, bypassing the FPDM and watching the fuel pressure?
@scarface24n
12 жыл бұрын
I have a 99 ford cobra that has a returnless fuel system. My question is; This is what the "Kenne bell boost a pump" does, increases the signals to increase fuel pressure? This is way out of my league, but im willing to learn and you seem like the man to ask. By the way im subscribing, ETCG sent me here.
@kruno45
12 жыл бұрын
brake clean sprayed in intake checks for spark and fuel but just a little shot to eliminate.
@herbertfranco9035
3 жыл бұрын
Great detailed video, thx!
@ScannerDanner
12 жыл бұрын
@NOEISY1 What is your LTFT while the STFT is at 9-11? Also was the engine fully warmed up?
@baumgardnerjesse
Жыл бұрын
Great info.
@ScannerDanner
12 жыл бұрын
@NOEISY1 Are you having any driveability problems? Both upstream O2 sensors should be switching rich lean. It sounds like your bank 1 O2 is not. But I would be careful about putting an O2 in this as a small vacuum leak on bank 1 could cause this condition too.
@stoverloren
4 ай бұрын
While my 2000 Taurus was running I checked the voltage on the power wire from the driver module to the pump and it shows 9 volts. Should it be higher or is it ok? The car left me stranded with no start and went back couple hours later and it started. I got a code for the fuel pump driver module also
@ScannerDanner
4 ай бұрын
I don't remember if the pump is controlled on the power or the ground side. It is pulse width modulated so seeing an average of the signal is normal
@VW412A
9 жыл бұрын
Hello Greetings I need your help please, I have a zx2 99 and my fuel trim long climbs to 10% I think that is something the rail injection pressure sensor that put a gauge on the rail and mark ralenty 30 psi, to connect the multimeter to the sensor gives me a voltage 2.8 volts, at WOT speed rises to 40 psi and the pressure gauge voltage rises to 3.4, lower back but after reading it before is this normal? I ask because I put 2 different fps and do the same, note: the sensors were yonks cars
@TRcustomengineering
12 жыл бұрын
Another A+ video! Thanks again.
@ScannerDanner
12 жыл бұрын
I don't think so, as very few manufacturers are doing this. I guess the theory is less alternator loads with this design. I cannot think of any other advantage.
@mertensworkins9128
5 жыл бұрын
I’m having the same sort of problem with my 1999 mustang v6 and most things point to it being a bad fuel pump but when I touch a different ground to it the fuel pump starts working. Also my injectors seemed to have stopped working. Maybe it’s all connected. Any advice would be great
@user-hc5yd9ur6b
3 жыл бұрын
Thank you 👍✋
@caseythomson524
2 жыл бұрын
thank you very good video
@manutokomaata5368
2 жыл бұрын
What if the control signal wire is just staying a constant 12v? I’ve been having the hardest time diagnosing my 06 Ford Escape, it shows 12v and with drop down once in a while and that’s when I hear the pump run. Other then that, key on engine cranking or off it shows 12v. Tia
@ScannerDanner
2 жыл бұрын
Have you watched part 2 yet? Do that, then we can talk
@karukifanz
Жыл бұрын
The ground wire coming back from contro Mediol does not work How is the problem solved
@icantellfakefromreal
12 жыл бұрын
Hey danner thanks for all the videos I find them
@ScannerDanner
12 жыл бұрын
@xxdemasterxx It was great, Eric is a great guy. We shot a video together, he should be posting it soon.
@MrMratni
12 жыл бұрын
This is interesting, i dealt with this problem before.
@AbsolutelyNot12345
4 жыл бұрын
Amazing. Thank you sir!
@ScannerDanner
4 жыл бұрын
Impressed you were able to follow it. Props to you! For some, this stuff is like scratching a chalkboard
@Jahzwolf1955
2 жыл бұрын
Problem with your tool to detect voltage will cause you to make errors in judgment. 9volts will light your light but not run a 12volt circuit
@victor35ma
12 жыл бұрын
@bobby8926 No, I don't think it is... it is just easier to troubleshoot. To me, early systems were as unreliable as difficult to troubleshoot. In these days everything is all about production time. It makes easy to technician to have a faster solution in less time possible. I know Mr. Paul will show us how fast this is using a generic scanner. Technicians just need to set up at least 3 PID, a dyno or a road test snapshot.
@CoolasIce2
12 жыл бұрын
Good vid. i would think that this kind of pump would last longer than pumps that run at full speed all of the time, not less as someone else said, since there would be less wear and tear, less r-p-m-s..
@brakedd
12 жыл бұрын
Do these have advantages over the pressure regulator type of systems?
@DarkLinkAD
12 жыл бұрын
If only all youtube videos could be as well informed.
@ScannerDanner
11 жыл бұрын
im not sure. look on the fuel rail, if you see a pressure sensor then it is this system
@geraldturner8377
9 жыл бұрын
posted this question on the other vid. I tested that blk and pink wire it did the same as your vid but the pump and sending unit is new could the wires just be bad or connectors
@PANOS9916
Ай бұрын
Awesome
@geoffreyrawlings9736
7 жыл бұрын
Good video excellent presentation.
@ScannerDanner
7 жыл бұрын
Thank you!
@imsmobilerepair749
6 жыл бұрын
I have a question. With the pump control module work on any pump if you were to hook it up in a different vehicle?
@ScannerDanner
12 жыл бұрын
@TALAMANCA17 Costa Rica? You guys have Fords down there? Forgive my ignorance if you do.
@emmanueldelgado4490
4 жыл бұрын
What happens if theirs no power on those wire for the switch
@gerfertorralba4687
7 күн бұрын
Hey bro my son car had a short on Window instrument panel drivers side (Rain and window open) now no power on car dashboard , cant turn it on
@ScannerDanner
6 күн бұрын
Need actual test results to help
@gerfertorralba4687
5 күн бұрын
@@ScannerDanner ok ill take care and let u know thanks a lot scanner danner have a good every day bro
@icantellfakefromreal
12 жыл бұрын
Hey danner thanks for the videos they're awesome! I just don't understand how the bad brush contact in the fuel pump would cause the voltage to not return to 12 volts. What is the brush making contact with to make that happen? The way i see it when the rotor stops spinning the commutators may be in contact with the brushes either way, so my question is what exactly do you mean when you say " the reason it doesn't go back to 12 volts is because of a bad brush contact"? Thanks again man cheers!
@jjmonroyx7
10 жыл бұрын
Hey scannerdanneri have an 06 ford f150 and it is a no start the driver module was broken so I replaced it the I checked all the wires and everything is getting ground and power where it should but the pump still doesn't kick on unless I power it directly w the power probe any advice would be helpful the only other thing I don't understand is the driver circuits
@HighestRank
10 жыл бұрын
If the check engine light stays on while cranking, replace the crank sensor.
@williamsvi
12 жыл бұрын
GREAT INFO!!!
@jhoo3589
11 жыл бұрын
2000 Ford Taurus did all the checks you showed...everything checks out. Couldn't hear the fuel pump when turned key on. Then when I double checked the main black ground wire while cranking it, it started...pump going out? How can I verify that the module is for sure good? It DOES have power in and out...
@hypnolobster
6 жыл бұрын
Would the little uScope do everything you need for diagnosing the Ford returnless system?
@rexluongo6470
2 жыл бұрын
Is the fuel rail pressure sensor the only fuel pressure monitoring sensor on a Ford? If there is a fault in the pressure sensor would that change the actual fuel pressure? For example, if the sensor reads the fuel pressure is 40psi and that is the desired pressure but the actual pressure is 25. Would the computer operate the fuel pump to keep the pressure at that 25psi, thinking it is 40 psi? On a Ford, should the desired fuel pressure ever change or should it be constant? Only asking because on my Ford it stays constant but I have a fault code for the fuel pump out of range.
@ScannerDanner
2 жыл бұрын
I believe with a FP sensor fault the duty cycle of the fuel pump will then be fixed and so will the pressure. What that default psi is, I do not know.
@rexluongo6470
2 жыл бұрын
@@ScannerDanner My code is gone for the Fuel Rail Pressure sensor. May come back but has not in 4 drive cycles. So we will see? Neither did the fuel pump code. Still have the lean codes, IMRV stuck closed codes. I think when I finally find a good MAF, the lean codes will be done. It idles normal now, no rich, no lean. Just runs lean now at throttle and higher rpm. Lack of power is fixed. Still has rough idle but has much improvement.
@rexluongo6470
2 жыл бұрын
@@ScannerDanner I have a fault code on my Ford and the duty cycle changes with throttle position but the pcm is always keeping the fuel pressure at 40 psi. Which kind of defeats the purpose of the variable pump, in my opinion. Why don't they just put a 50 psi pump and call it good? Maybe is it because they want to have a more accurate measurement of how much fuel the injectors are pumping????
@fivefortyeye540i
12 жыл бұрын
Now that is what u call through, through verification. Most would have just called it. Diagnostically the guy skills is just ice warter, COLD!!
@MrJgonzalez2
12 жыл бұрын
Paul, on this design is the injector pressure sensor the only input for fuel pump speed or are there other inputs?
@itsme99gt
11 жыл бұрын
I have a 2000 Merc Sable. P1237 code came up(car still runs) did the test on the module, and when I got a low voltage on the ground wire(red w/black tracer) after cranking, I banged on the tank to see if the voltage would come up, it didn't. Does it still mean that I have a bad pump? even though the car still runs? THX
@JohnzCarz
12 жыл бұрын
Can you use any test light to check for spark? Just seems like the secondary voltage would fry whatever bulb is in a ‘normal’ test light.
@Alfvaldez
12 жыл бұрын
when i am checking for grounds i look to see if there is continuity to body, would that be an acceptable way of checking? I also check for amperage on the power wires because continuity can be biased and doesn't measure current
@kekoagallant579
6 жыл бұрын
Great video!
@jeffenglishsetter8339
9 жыл бұрын
ScannerDanner.....AWESOM breakdown. I am currently working on the same vehicle, 2000 taurus....one question....how did you access the CM in the trunk? Is the "felt" verticl cover that looks like it runs along the back of the seat what needs to come off? If so how did you go about removing that? I can't figure out how to remove things without damaging the covers...
@ScannerDanner
9 жыл бұрын
Jeff it's been a long time. I believe I was working in the right rear area. Don't remember if I took the seat out but I do remember having difficulty finding it.
@JohnDoe-uq3mx
8 жыл бұрын
ScannerDanner, I was changing the oil on my 2000 Ford Ranger today, and I noticed a fuel pressure regulator sitting right there on the fuel rail, which reminded me of as to why would a returnless fuel system even have a fuel pressure regulator present. She only has one line feeding the fuel rail, and the fuel filter has a 3rd bypass line on it. I'm puzzled as to why there is even a fuel pressure regulator there. This one is beyond me. She has the 2.5 Lima inline 4 block under her hood.
@richardcranium5839
7 жыл бұрын
that is probably a dampener not a regulator. they look similar
@apexsmith3491
Жыл бұрын
any ideas if PCM com wires are at battery voltage?
@ScannerDanner
Жыл бұрын
Bad ground on one of the modules on the network or short to power as in water in a connector
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