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47 Posts
A little background here. '01 Jetta, 2.0 AZG (bad rings= bad o2 sensors, bad cat, fouled plugs etc...) I have been driving with the MAF unplugged for some time now, and finally bought a new MAF. installed, and runs like garbage. no acceleration, had to idle around the block. unplug, I can drive normally for the most part but without much power in EPC mode. Cat has been hollowed out, (plugged up due to piston blowby),both o2 sensors are new, ignition coil was cracked, replaced that, plug wires and plugs too when I blew the head gasket after the coolant flange failed... new cam position sensor(broke when rebuilding the head), and 267k on the odometer.
with that out of the way, I am actually ok with the way it drives in EPC mode, but would like to try to correct the current issues. plugged in, runs like crap, unplugged EPC mode. The other day it was extremely cold and could not get the engine to go past idle. warmed up a bit and went away, this happened 3 times but not for weeks since. I'm wondering if anyone has run into this, and if the throttle body is just shot. is there an EGR or an IAC valve on this car that I can clean? is the CAT being hollowed out causing the problems? any help is always appreciated.
Thank you,
with that out of the way, I am actually ok with the way it drives in EPC mode, but would like to try to correct the current issues. plugged in, runs like crap, unplugged EPC mode. The other day it was extremely cold and could not get the engine to go past idle. warmed up a bit and went away, this happened 3 times but not for weeks since. I'm wondering if anyone has run into this, and if the throttle body is just shot. is there an EGR or an IAC valve on this car that I can clean? is the CAT being hollowed out causing the problems? any help is always appreciated.
Thank you,