I'm getting nowhere diagnosing my car. Lots of details inside.
12-18-2008, 02:42 AM
#11
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MAF? Usually when the car acts up with the MAF plugged in.
I have seen that a 1.8T With that MAF plugged in and its missfiring and sputtering then you unplug it and it fine indicates a bad MAF. Have you tried cleaning it or known good one? I would also clean and adapt the throttle valve. I would start from there... This sounds like you need to be there to see, hear and feel this carry on. I would also loose the MBC and get chipped. All your doing is tricking the ECU and making the stock file run to its limits. Not a big fan of those.
12-18-2008, 03:43 AM
#12
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this is all with the maf unplugged. car barely idles with maf plugged in.
maf is fairly new anyway, throttle body was cleaned 2 months ago, aligned the other day.
12-18-2008, 04:05 AM
#13
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WOW....sounds like a mess. At this point, you have so much going on>>>.
that it is hard to tell what is causing what...
I would probably re-plumb the N249 back in, and setup the catch can to vent back into the intake hose. Not sure if the pressure is causing the leak into the crankcase or not..but i am sure it is not helping...
Just my two cents...
I would probably re-plumb the N249 back in, and setup the catch can to vent back into the intake hose. Not sure if the pressure is causing the leak into the crankcase or not..but i am sure it is not helping...
Just my two cents...
12-18-2008, 10:10 AM
#19
Had similar problem with the blue car recently
Car started stumbling very badly, not running on all four cylinders, stalling with just the slightest load. I thought it was a coilpack or three but unplugging the MAF fixed it. Turned out that's all it was, new MAF and it's fixed.