how can you tell if your maf is bad

794 Views 7 Replies 5 Participants Last post by wolfs18t, Aug 8, 2002

wolfs18t

Discussion Starter · Aug 8, 2002

just what the topic says, how can you tell if the maf went bad on a jetta iv

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[email protected]

· #2 · Aug 8, 2002

Re: how can you tell if your maf is bad (wolfs18t)

Log airflow at full throttle. Should be 165-175 g/s peak in a chipped AWW. Or, disconnect the MAF and see if it runs better.

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H2O WOLF

· #3 · Aug 8, 2002

Re: how can you tell if your maf is bad ([email protected])

quote:[HR][/HR]Log airflow at full throttle. Should be 165-175 g/s peak in a chipped AWW. Or, disconnect the MAF and see if it runs better.[HR][/HR]

How exact are those numbers? I had a peak of 160g/s on a run last night.

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[email protected]

· #4 · Aug 8, 2002

Re: how can you tell if your maf is bad (H2O WOLF)

Those numbers are what your engine uses to measure airflow, so they should be accurate ... unless the MAF is dirty/failing. 160 isn't too bad.

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AxeAngel

· #5 · Aug 8, 2002

Re: how can you tell if your maf is bad ([email protected])

clean it to be safe

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Re: how can you tell if your maf is bad (AxeAngel)

Does anyone have links to an old topic that goes over how to clean the maf? I'd search for it, but...
BTW, lately power has been surging (falls on it's face, then tries again, then falls on it's face again) in 3rd, 4th, and 5th gears 5500rpm and up. Do these sound like symtoms of a maf gone bad, or do I just need a new air filter

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AxeAngel

· #7 · Aug 8, 2002

Re: how can you tell if your maf is bad (slogtiguy)

quote:[HR][/HR]Does anyone have links to an old topic that goes over how to clean the maf? I'd search for it, but...
[HR][/HR]

read the FAQ then send a kind IM to VWMike or AxeAngel thanking them for doing all that

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wolfs18t

Discussion Starter · #8 · Aug 8, 2002

Re: how can you tell if your maf is bad (AxeAngel)

thanks for your help guys, i will disconnect it tonight to see if my car runs better

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