Question for those that have had bad MAF's.

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07-15-2002, 02:20 PM

GrandPaJohn

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Question for those that have had bad MAF's.

Need help diagnosing a problem that went away for a week or so and now has returned. No boost over 4/10 bar and very rough idle. Are these the typical DTC's for a bad MAF?
2 DTC's Found:
17538 - Fuel Trim: Bank 2 (Mult): System too Lean
35-00 - -
17536 - Fuel Trim: Bank 1 (Mult): System too Lean
35-00 - -
What symptoms did you experience?
Would the car run better with the MAF unplugged?
TIA

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07-15-2002, 02:22 PM

Taner Halicioglu

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Yes. Bad MAF. Exactly same symptoms as me, gone completely when MAF was changed, and they haven't

returned

You can _try_ cleaning the MAF, but best to get a new one.

-T

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07-15-2002, 02:29 PM

GrandPaJohn

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Thanks. I was afraid of that. Aren't there two manufacturers and isn't one better?

As I recall, Bosch's were the problem, I think.

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07-15-2002, 02:31 PM

Prodigy

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IIRC you have to use what you had originally otherwise your ECU will have a S*** fit

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07-15-2002, 02:42 PM

Taner Halicioglu

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You can't change from one to the other :-( They are too different...

well, I'm sure you "can".. but it's extremely non-trivial...

Yes, Bosch in the MY2000's and some MY2001's...

-T

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07-15-2002, 02:46 PM

GrandPaJohn

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Damn. I sure hope they've come down in price...some old posts say $300. YIKES

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07-15-2002, 02:49 PM

Prodigy

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if possible

try someone else's maf to see if it's realy the problem before droppin the $$$

otherwise

clairparts.com
oemaudiparts.com

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07-15-2002, 03:01 PM

Jeff Vader - boscoj

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I would say so . . .

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07-15-2002, 03:38 PM

GrandPaJohn

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Well, I cleaned it and it runs fine now. Let's hope it stays that way

BTW, when I removed it, there were bugs in the screen before the sensor. Seems the air filter wasn't set right when I reinstalled it for the new plugs I put in a few weeks ago. There was a gap on one side. Maybe it was just some bug guts stuck on the sensor? :-)

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