GT3 mk1 new maf
Discussion
I put a new maf sensor in my car - its made a huge difference to how it runs.
Recently the car felt a bit "heavy" at low (<3k) revs, maybe even a hint of hesitation until it reached 3k. I thought this might have been a characterisitc of the new exhaust (M&M) fitted around 3000 miles ago. Dyno shows a healthy 397 bhp. The idle was also fairly rough but as these cars idle rough anyway, i didn't think much of it.
Having put the new maf in, it runs like a dream, absolutely flies and idles just like it did when i first got it (i'd forgotten that it idled with a sweet mechanical throb rather than just rough like it did before the maf). It takes just over half a second to go from 2000 to 3000 revs in second gear and it pulls very strogly througout. I also changed the air filter and disconnected the battery before fitting the new maf.
The car is a y2k 6.1 gt3, has 28k miles on it. Buying a bosch part direct rather than through porsche cuts the cost of the maf by more than half.
I'm now wondering if i should also change the 2 exhaust sensors - has anyone done this with tangible benefits?
Cheers
Ajit.
Recently the car felt a bit "heavy" at low (<3k) revs, maybe even a hint of hesitation until it reached 3k. I thought this might have been a characterisitc of the new exhaust (M&M) fitted around 3000 miles ago. Dyno shows a healthy 397 bhp. The idle was also fairly rough but as these cars idle rough anyway, i didn't think much of it.
Having put the new maf in, it runs like a dream, absolutely flies and idles just like it did when i first got it (i'd forgotten that it idled with a sweet mechanical throb rather than just rough like it did before the maf). It takes just over half a second to go from 2000 to 3000 revs in second gear and it pulls very strogly througout. I also changed the air filter and disconnected the battery before fitting the new maf.
The car is a y2k 6.1 gt3, has 28k miles on it. Buying a bosch part direct rather than through porsche cuts the cost of the maf by more than half.
I'm now wondering if i should also change the 2 exhaust sensors - has anyone done this with tangible benefits?
Cheers
Ajit.
Edited by Singh911 on Sunday 5th April 18:18
I have replaced the lambda sensors with Bosch (rather than Porsche) part numbers, because I had the exhaust system apart and thought it prudent to change them whilst I had easy access.
To be honest, I could detect no appreciable difference. I simply had the reassurance that they were not 15 years old!
I guess I should apply the same logic to changing the MAF but the car runs well and access could not be easier?
I feel a "if it aint broken don't fix it" mood coming on.
To be honest, I could detect no appreciable difference. I simply had the reassurance that they were not 15 years old!
I guess I should apply the same logic to changing the MAF but the car runs well and access could not be easier?
I feel a "if it aint broken don't fix it" mood coming on.
Hi yes for the Mk1 the bosch part is 0280217007. The Mk2 has a different part.
Here is a link to the bosh part finder http://www.bosch-automotive-catalog.com/en/ - be very specific about the car and part number. The Mk1 engine is code m96.76, I believe the Mk2 is m96.79. The bosch site is brilliant it will list details of the car including bhp so it's very easy to get the right part.
I would take the old maf out to be absolutely sure it's a 2 minute job to get it out, the part will have the bosch part number as well as the porsche number on it. You just undo the 2 torx nuts on the housing. I would also change the air filter at the same time. I disconnected the battery when fitting - not sure why but it felt he right thing to do.
Overall it's a dead easy diy and made a huge difference to my car. The only surprise is that whilst the air filter is changed every service I've had the same maf since I bought the car ten years ago. Not sure what the shelf life of these things is.
HTH
Here is a link to the bosh part finder http://www.bosch-automotive-catalog.com/en/ - be very specific about the car and part number. The Mk1 engine is code m96.76, I believe the Mk2 is m96.79. The bosch site is brilliant it will list details of the car including bhp so it's very easy to get the right part.
I would take the old maf out to be absolutely sure it's a 2 minute job to get it out, the part will have the bosch part number as well as the porsche number on it. You just undo the 2 torx nuts on the housing. I would also change the air filter at the same time. I disconnected the battery when fitting - not sure why but it felt he right thing to do.
Overall it's a dead easy diy and made a huge difference to my car. The only surprise is that whilst the air filter is changed every service I've had the same maf since I bought the car ten years ago. Not sure what the shelf life of these things is.
HTH
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