I thank you for your wonderful informative videos.
@toyotoe3732
9 жыл бұрын
Thank you for video. Did it turn out to be a stuck closed / not delivering enough fuel injector no. 2 which caused this misfire?
@Case_
8 жыл бұрын
I'm sorry for being kinda off topic here, but you wouldn't happen to know what a normal intake vacuum at idle should be on this engine, would you? I've been looking for this information all over the internet for days, but it seems impossible to find. Thanks.
@scottScottMechanics
8 жыл бұрын
hello should be around 20 inhg thanks
@Case_
8 жыл бұрын
Thank you very much for your reply! I've meanwhile finally gotten a vacuum gauge and my MAP sensor seems to indeed be off calibration a bit (which is why I was asking) - the engine is pulling 21.5 inHg at idle according to the vacuum gauge, but according to the MAP sensor, it's pulling over 23. So I guess it could be responsible for the lean condition I've been chasing for quite a while and I'm gonna be replacing it.
@scottScottMechanics
8 жыл бұрын
+Case check the voltage on the map sensor old and new one try some brake cleaner in the air intake manifold that will help clean it
@Case_
8 жыл бұрын
Thanks for the suggestion, but I already had the replacement MAP sensor bought anyway and given how bloody awful it is to get to it on this engine, I simply went ahead and replaced it. And thankfully, it seems to have worked - my fuel trims at idle went from 25+ percent to around 5-6 percent, and the manifold pressure at idle went up from 24-25 kPa to 29-30 kPa (so basically to what the vacuum gauge was showing). Apparently the MAP sensor was reading more or less correct at barometric pressure, but the lower the pressure, the more out of calibration its reading was, basically mimicking the classic vacuum leak symptoms of high fuel trims at low rpm (but this is a speed density engine, so it didn't really make much sense for a vacuum leak to be causing such fuel trims). And a good thing it did fix it, I spent weeks trying to diagnose and fix this and was pulling my hair out. Had a quick look at the old MAP sensor and it kinda looks like there might be a tiny hole in one of the corners of the casing, so that might have something to do with why it wasn't reading properly. I'll examine it more carefully later. Anyway, thanks for your help, much appreciated!
@scottScottMechanics
8 жыл бұрын
+Case thanks for the reply well done 👍🇬🇧🏍
@scottScottMechanics
9 жыл бұрын
Check out this video on KZitem:
@DIETRYING001
8 жыл бұрын
scott how much is the new verus pro you have with ssd? does it come with autodata subscription for the scope diagrams, component test etc or is that just built in? also is the scope built into the device or all extra cost? great videos mate your channel will do well
@scottScottMechanics
8 жыл бұрын
+Martin M hello the verus is around £6000 and no ssd drive autodata is £570 a year and that all is not included thanks
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