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Christ · 10-08-2009, 08:50 PM

I think that the PCM might not be adjusting because it's metering the airflow through the MAF, it probably just thinks the O2 is stupid, or it's not far enough out of spec for the PCM to compensate, or it's so far out of spec that the PCM is at max trim.

More likely, in this case, the O2 is the "odd man out", and the PCM is a bully, calling it retarded and kicking dirt at it's readings. :P

10-08-2009, 08:50 PM	#23 (permalink)
Christ Moderate your Moderation. Join Date: Nov 2008 Location: Troy, Pa. Posts: 8,919 Pasta - '96 Volkswagen Passat TDi 90 day: 45.22 mpg (US) Thanks: 1,369 Thanked 430 Times in 353 Posts	I think that the PCM might not be adjusting because it's metering the airflow through the MAF, it probably just thinks the O2 is stupid, or it's not far enough out of spec for the PCM to compensate, or it's so far out of spec that the PCM is at max trim. More likely, in this case, the O2 is the "odd man out", and the PCM is a bully, calling it retarded and kicking dirt at it's readings. :P __________________ "¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"