i have an 04 turbo cab, evo stage2, EVO INTAKE..............

i was wot in third very close to redline when it felt like the fuel just cut out. off the throttle then......abs light, psm light, check engine light. damn

shouldnt EVO be doing something about this? maybe some sort of upgrade to the filter or whatever?? it seems like MAF's are blowing with so many cars equipped with EVO intakes. i dont really want to keep blowing MAF's, i only have about 1500 miles on my car

 

MAF's do not just blow. Clean it. What is the code, and what is the reading of the MAF?? Wjy jump to conclusions when you do not have all the necessary data? This bad MAF **** is getting as bad a the RMS being blamed everytime someone has a drop of oil on the garage floor.

 

dood, it's just a coincidence. just keep replacing them. have you tried to clean it? scub your mit.

 

I had a bad MAF as well. Just installed Evo Stg. 3 on my X50 car. With maybe 75 miles on the Stg3 and 8500 miles on the car, at the track, all of a sudden the CEL, PSM, and ABS lights went on. Car still drove fine, but I took it in to the dealer.

New MAF under warranty, in and out same day. No problems. This is the first time in the car's history the MAF went bad.

 

911, u think i have should have to clean my maf?? u have got to be kidding. the car has 1500 miles on it. since when do u have to open the hood of any car and start cleaning things for it to perform correctly? if u notice, i have not stated a conclusion, i have asked a question. that question was based on many mafs blowing when the evo intakes are installed. i am sure mafs have blown without the evo intake. it would appear based on informatino from this board that failure ratio is higher with the intake.

you did say one thing right though. mafs should not just blow. so why are they?

 

<<<<911, u think i have should have to clean my maf?? u have got to be kidding. the car has 1500 miles on it. since when do u have to open the hood of any car and start cleaning things for it to perform correctly? if u notice, i have not stated a conclusion, i have asked a question. that question was based on many mafs blowing when the evo intakes are installed.

you did say one thing right though. mafs should not just blow. so why are they?>>>>


Don't know if your MAF needs cleaning or not. All it reads is air temp and volume by way of voltage. You would have to hook up your scanner to see what it is reading. Got an oiled filter???? That is how a MAF can get dirtyt. With those types of filters, the MAF becomes an easy maintenance item with cleaning every once in awhile.

The first thing to do is read the code and sensor values.

 

johnw(to),
My TT have the same fuel cut off then PSM, ABS and check engine light all on. Since you're also at Toronot, Did Pfaff tuning did the program and V-flow for you? Mine were all done by Pfaff tuning and I've drop my TT at Pfaff yesterday to replace the MAF under warranty. But they need "couple days" to do it and hopfully I can have my car back before weekend!

I've read some post here, even the car still running storng when all the lights were on. The low end will runing too rich (you will feel it at low rpm 1st gear) and high end runing too lean which is will damage the engine if you still pushing it. I will suggest go to dealer ASAP.

 

thx ray. yes i had it all done at pfaff. i will get it in asap.

 

must be the root cause here its more than a coincidence all these MAFs blowing

 

I think there are a couple of basic problems here.

1. People are very quick to blame the MAF (it seems like the default reason for any CEL). This seems to be a symptom rather than a cause of the ABS/PSM/CEL lights.

2. I'm not sure anybody really knows why/how etc. to clean/care for a MAF properly.

3. Some, maybe most, dealers (or stealers as some refer to them) don't seem to know either.

My guess at this point is:

First get the codes (as 1999porsche911 suggests),
second, if appropriate, clean the MAF and reset the codes, then figure out why the MAF is giving the fault (does the filter have too much oil, other dust debris being sucked into the intake,...). Just my $.02.

 

We have been conducting a variety of tests on our cars here in PHX with different air filters. There have been some inconsistencies with the amount of oil on the air filters supplied to us for the V-Flow. The first round of V-Flow filters had 16 grams of oil, which is a standard amount to be applied to a filter its size. We then made filters with 11 grams of oil, then 9 grams of oil and then 7 grams of oil. We theorize that the oiling process of the air filters can be different from filter to filter due to the oiling application process that is done is both by machine and by man, leaving room for inconsistencies in the amount of oil applied to the filters. IN SOME CASES, this has caused the MAF to stop reading. As others have stated, the MAF's can be cleaned making them able to work correctly. We do not, however, expect our customers to clean the MAF’s with our air filters to make them work properly. We state the fact that you can clean them because many consumers feel that when their MAF throws a code it is “blown� and that means that it is time to buy a new one. In many instances a MAF code does not warrant a MAF replacement.

The V-Flow flows 32% more CFM more air than the stock airbox. This increased air flow is also the reason why our system makes so much power. However, it is important to note that with the increase in airflow, there can also be an increase in the ingestion of oil from the air filter. In addition, there are other variables to look at when trying to pin-point the cause of these MAF malfunctions. You have climate, road conditions, MAF design, age of MAF, etc. that could also lead to the deterioration of the MAF sensors. We have to this day sold over 500 V-Flow units, and have had very few MAF failures reported. These facts are not meant to discount the fact that some of you have had failures, we simply want to suggest that there is an inconsistency that warrants our deeper investigation and constant monitoring of the product.

Our solution: We have designed an oil-less filter that has similar filtration rate as an oiled filter, yet contains no oil. The filter has an additional layer of a synthetic material, which acts as the final layer of protection with the 4 layers of medical grade cotton gauze. The filters can still be cleaned as usual but will not need to be oiled. This filter has undergone testing in the dusty AZ climate and we have found this method of filtration to prevent the MAF from getting contaminated with the oil from the air filter and causing the MAF to stop reading. We have been studying this MAF issue for over a year and we feel that this solution will likely fix the oil related MAF contamination without adverse affects. Over our course of testing on our cars, we found no major increase in MAF malfunctions. It should be pointed out however we do see MAF failures on occasion with stock 996TT’s. During our testing of this particular product, the only increase in MAF related problems occurred in our 750+ HP cars where the airflow passing by the MAF is substantially greater than that of a 450-550 HP car thus increasing the wear and tear on the MAF. The solution to these higher HP cars was the combination of our new oil less filter combined with the stronger 986 MAF.

We at Evolution Motorsports strive to create products that enhance performance without compromise. We realize that all products and new technology have room for improvement and it is through situations like this that we learn to perfect our processes. Any customers who have had a faulty MAF can contact me and I will send them a newly designed air filter. Those who have not had any issues, it is not necessary to change the filter because if there was a problem with your particular filter, it would have already caused a MAF issue. I appreciate your candid feedback, as it gives me the opportunity to continually improve our products and service.

 

Thanks for the honest reply Todd.

I will need a new cotton filter and am interested in addopting the 986 MAF. Do you feel the 986 MAF is required with the 700 Kit with the upgraded throttle body?

Mike

 

We have been testing the 986 MAF in our GT750/800 systems and have had great luck with them. I think that will be a worthwile upgrade with your GT700 system

 

Todd, Thank you for your quick detailed response. I am still a believer in products EVO has on the market! I sent you a pm.

 

Nice writeup - thanks, Todd.

- Rich