[s-cars] Blink 4444 yet Motor Still Stumbles - Code 2413 Gone

[Richard Tanimura]

Mark,

Brett D once commented to me that cleaning the ISV with carb or brake
cleaner removes too much lubricant. I sprayed a light film of WD40 in mine.
It immediately got rid of my motor hunting up and down at idle and as you
describe. Try that first.

Rich

-----Original Message-----
From: s-car-list-admin at audifans.com
[mailto:s-car-list-admin at audifans.com]On Behalf Of Mark Pollan
Sent: den 10 maj 2003 19:13
To: S-Cars (E-mail)
Subject: [s-cars] Blink 4444 yet Motor Still Stumbles - Code 2413 Gone


I posted earlier that I was throwing code 2413 (MAF) and still am - but
getting close to was - hoping it is as "simple" as the MAF.  I will be
trying a known good MAF soon as I can hook up with a local lister (Thanks
Mark T.)  I cleared the codes and went for a drive (albeit a short one - 10
minutes or so).  Car stumbled while coasting to a stoplight and recovered
(RPMs dropped to about 300 then surged to 1000  and settled in at 800).
Pulled codes when I got home expecting to see 2413 but 4444 came up.  The
stumbling fairly well goes away with a warm engine.  Would a bad 02 sensor
be a possible/probable cause?  Did I possibly not drive long/hard enough to
register codes?

I'm at a loss.  What gives?  Any and all thoughts appreciated!!  I did clean
my ISV several times.  BTW, I am running MTM 1+ software.

Best regards,

Mark Pollan

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