Quote:
Originally Posted by blue62
Lets see what your cam deviation shows after you change out the cam sensor.
Then I will describe a way to use your Durametric to test your MAF sensor. Faulty MAF can cause lumpy idle.
But I will tell you how to test it after we see if the new Cam sensor cures the problem.
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Its quite odd, Even though I got the engines timing right when I first start the car in the morning it runs great. idles amazing, but right when the car warms up the lumpy idle begins. I checked the camshaft deviations at idle after a long drive and camshaft position 1 deviation was at 19.23 degrees and camshaft position 2 was at -6.25, meanwhile their actual angles was 1= .33 and 2= -.13. Given this information is it possible the variocam actuator and solenoid I was sold was a dud and its sticking when activated which explains the car idling great sometimes but like trash other times, and I assume the following missfire codes are the car adjusting fueling to compensate for the bad timing leading to a missfire. What i do know is when I hit the gas the car revs smooth and goes like a boxster should. I know in the future i was planning on replacing my 116,000 mile old ims bearing and also replacing the trans fluid in the tiptronic so maybe I should just drop this engine for an overhaul? I dont know what to do at this point ive alredy taken off the passenger camshaft cover off 4 times becuase the first time I used too much sealant and the plugs popped out, the 2nd time a bolt broke and i had to take everything apart to extract it, and now I am guessing the worst that my "new" camshaft actuator/solenoid are garbadge and I have to redo the whole project.