Random detonation after car wash
07-11-09, 12:08 AM
#1
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Random detonation after car wash
Long story short, I sprayed my engine bay cleaning it today before a car show and afterwards when I was boosting it in the higher gear
s I heard a sound not being sure what it was I boosted it again and the noise occured, the knock reading on my power fc read 167!, normally it's never over 100.... The noise happened quite a few times before I realized....
I just installed an msd6al2 and the car hasn't idled nicely since, I don't think the detonation is related to the msd but what do you think?, I test dove it and it was fine after the msd, after the detonation I turned the car off then back on and it was fine....
Could something have got wet and caused the car to detonate?, it hasn't occured since.... Help!
s I heard a sound not being sure what it was I boosted it again and the noise occured, the knock reading on my power fc read 167!, normally it's never over 100.... The noise happened quite a few times before I realized....I just installed an msd6al2 and the car hasn't idled nicely since, I don't think the detonation is related to the msd but what do you think?, I test dove it and it was fine after the msd, after the detonation I turned the car off then back on and it was fine....
Could something have got wet and caused the car to detonate?, it hasn't occured since.... Help!
07-11-09, 09:54 AM
#2
MECP Certified Installer
I don't think I'd be spraying my engine compartment anymore :P
I really have nothing to add other than that. That is a strange occurance though. I don't think I'd freak out as long as that was the one and only time it happened and didnt happen again.
I really have nothing to add other than that. That is a strange occurance though. I don't think I'd freak out as long as that was the one and only time it happened and didnt happen again.
07-11-09, 11:52 AM
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At one point it started to idle nicely, it has a power fc and I've tried to re learn the idle with no avail, it sounds like the car has a miss at idle but perfect otherwise, since the msd box it idles lean, perhaps I need a re tune?
07-12-09, 11:56 AM
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I haven't tried a timing light but I have kept an eye on the timing with the power fc, they haven't changed.... Maybe the stronger spark efficiently burns the fuel better?, causing lean on idle?
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