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wzf18r

Replace MAF myself

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I need to replace the MAF myself, I read a number of articles on this forum about replacing MAF, but I want to verify the process

I took my car to Porsche certified center to examine my car ide problem, when it is in ide state, it is kind of shaking 9very minor at this stage)

The technician told me that I need to replace th MAF and do some cleanup task

i will check all the losen air hoses and cleaup the air filter first, if the problem is not resolved then I would like to replace the MAF myself

If I purchase the same part number MAF from eBay, can I just swap the old one with the new one?

Do I need to do any programming or post-installation task?

Please advice

Thanks

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Does your car have somewhere between 35K and 60K miles on it? If yes, but you don't have a check engine light lit, there's a good chance you need to clean the throttle body. Dirty throttle body will cause rough idle. Lots of posts here - try searching.

If you don't have a check engine light, then no need to replace the MAF. P1128 and/or P1130 are common codes for a MAF that's not working. You can confirm by clearing codes and cleaning the MAF with electronic parts cleaner that doesn't leave any residue and see if your CEL stays off for several hundred miles of driving (really only a temporary fix). If yes, then replace your MAF. See Mike Focke's excellent MAF page for part numbers.

As many others have stated, buying a MAF on eBay is like playing Russian roulette. Good prices for known good, new parts from Sunset in Oregon (see Porsche Parts at Dealer Cost - Sunset Imports link on each page) or try AutohausAZ.

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I need to replace the MAF myself, I read a number of articles on this forum about replacing MAF, but I want to verify the process

I took my car to Porsche certified center to examine my car ide problem, when it is in ide state, it is kind of shaking 9very minor at this stage)

The technician told me that I need to replace th MAF and do some cleanup task

i will check all the losen air hoses and cleaup the air filter first, if the problem is not resolved then I would like to replace the MAF myself

If I purchase the same part number MAF from eBay, can I just swap the old one with the new one?

Do I need to do any programming or post-installation task?

Please advice

Thanks

I had a 2000 Boxster S with about 90 000 km. on. It never showed any error codes, but it did have a slight hesitation at about 3,500 revs and again at about 5,500. I cleaned the MAF (and the throttle, etc.) a few times using the correct cleaner but it never fixed the problem. Fitted a new MAF and it worked like magic. Easy job, using instructions on the forums somewhere. The only thing you have to do after installation, is to switch on for one minute without touching the accelerator, switch off again for 10 seconds before starting. After that it takes a bit of normal (not aggressive) driving, for a few minutes for the system to calibrate itself. Worth every cent.

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You need a special tool not in everyone's tool kit. And the MAF is best bought by it's original maker's part number and not by the Porsche part number. It takes about 20-30 minutes to remove and replace a MAF and is a 2 in difficulty on a scale where replacing the cabin air filter is a 1 and rebuilding the engine is a 10.

Part numbers/sources, tool descriptions and do-it-yourself instructions are here.

As for cleaning the throttle body, Pedro

There are many causes of the symptoms you describe that are not fixed by a MAF replacement.

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Great advice

I will do the cleaning and then see what happen

I don't have the engine light on, but I still consider to replace the MAF if the cleaning doesn't work

BTW do I have to do anything after swapping the new MAF?

I had a 2000 Boxster S with about 90 000 km. on. It never showed any error codes, but it did have a slight hesitation at about 3,500 revs and again at about 5,500. I cleaned the MAF (and the throttle, etc.) a few times using the correct cleaner but it never fixed the problem. Fitted a new MAF and it worked like magic. Easy job, using instructions on the forums somewhere. The only thing you have to do after installation, is to switch on for one minute without touching the accelerator, switch off again for 10 seconds before starting. After that it takes a bit of normal (not aggressive) driving, for a few minutes for the system to calibrate itself. Worth every cent.

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Yes, you need a Torx bit (T20, I think.) And I also bought the MAF from Bosch, it was almost half the price of the OPC one and it even had the Porsche number on.

You need a special tool not in everyone's tool kit. And the MAF is best bought by it's original maker's part number and not by the Porsche part number. It takes about 20-30 minutes to remove and replace a MAF and is a 2 in difficulty on a scale where replacing the cabin air filter is a 1 and rebuilding the engine is a 10.

Part numbers/sources, tool descriptions and do-it-yourself instructions are here.

As for cleaning the throttle body, Pedro

There are many causes of the symptoms you describe that are not fixed by a MAF replacement.

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Yes, you need a Torx bit (T20, I think.) And I also bought the MAF from Bosch, it was almost half the price of the OPC one and it even had the Porsche number on.

You need a special tool not in everyone's tool kit. And the MAF is best bought by it's original maker's part number and not by the Porsche part number. It takes about 20-30 minutes to remove and replace a MAF and is a 2 in difficulty on a scale where replacing the cabin air filter is a 1 and rebuilding the engine is a 10.

Part numbers/sources, tool descriptions and do-it-yourself instructions are here.

As for cleaning the throttle body, Pedro

There are many causes of the symptoms you describe that are not fixed by a MAF replacement.

It is a Security Torx 20.

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