MAF Sensor question

**xx_s4quattro_xx** · 09-15-2008 09:49 AM

I have a question is it possible for a maf sensor to go out with then less than a year? Because when i vagged the car it says maf sensor signal to low. On my way to work today the car died on me twice. The rpm was jumping up and down and then just died. Got to work unplug the maf its idling ok. Do you guys think its the maf or a boost leak? LMK thanks

**Rated S** · 09-15-2008 10:32 AM

Originally Posted by xx_s4quattro_xx

I have a question is it possible for a maf sensor to go out with then less than a year? Because when i vagged the car it says maf sensor signal to low. On my way to work today the car died on me twice. The rpm was jumping up and down and then just died. Got to work unplug the maf its idling ok. Do you guys think its the maf or a boost leak? LMK thanks

Sounds like a MAF problem, anything is possible. It could just be dirty, what kind of intake do you have? Try going to Kragen/Autozone/Pepboys/etc and buying some "MAF Cleaner" if that doesn't work, most likely the MAF is done.
Let it dry completely before plunging it back in.

**xx_s4quattro_xx** · 09-15-2008 11:27 AM

Originally Posted by Rated S

Sounds like a MAF problem, anything is possible. It could just be dirty, what kind of intake do you have? Try going to Kragen/Autozone/Pepboys/etc and buying some "MAF Cleaner" if that doesn't work, most likely the MAF is done.
Let it dry completely before plunging it back in.

Yea im gonna try to clean it. But do you think it would go out that quick i just got it 6 month ago?

**IamEzraM** · 09-15-2008 11:39 AM

where would the maf codes be logged ? in the 01 - engine block ?

**Rated S** · 09-15-2008 11:45 AM

Originally Posted by IamEzraM

where would the maf codes be logged ? in the 01 - engine block ?

Yes they would be logged in Engine block.

What kind of intake are you running? it could be possible the filter is dirty and it just dirtied up the MAF... really anything is possible. Was the MAF refurbished?

**xx_s4quattro_xx** · 09-15-2008 12:01 PM

I have a stock intatke with the stock filter. The Maf was bought brand new at the dealer.

Originally Posted by Rated S

Yes they would be logged in Engine block.

What kind of intake are you running? it could be possible the filter is dirty and it just dirtied up the MAF... really anything is possible. Was the MAF refurbished?

**Rated S** · 09-15-2008 12:08 PM

Originally Posted by xx_s4quattro_xx

I have a stock intatke with the stock filter. The Maf was bought brand new at the dealer.

I'd say clean it first, I'd offer you mine, but I don't think the 3 hour drive is worth it

**xx_s4quattro_xx** · 09-15-2008 12:20 PM

Originally Posted by Rated S

I'd say clean it first, I'd offer you mine, but I don't think the 3 hour drive is worth it

Im gonna clean it and if it dont work ill be on my way to hollywood. Lol do you think this might be a boost leak problem too?

**Rated S** · 09-15-2008 02:31 PM

Originally Posted by xx_s4quattro_xx

Im gonna clean it and if it dont work ill be on my way to hollywood. Lol do you think this might be a boost leak problem too?

If you have a pressure tester then I would do it just in case. It's just that when you unplugged the MAF during idle and it smoothed out, I've always cleaned the MAF and it almost always helps.
It's a $3 bottle of MAF cleaner, and takes 2 Torx screw (remember to have 'security' torx bit with the hole in the middle of it for the MAF screws) and about 20 minutes clean/dry.

**xx_s4quattro_xx** · 09-15-2008 03:27 PM

Originally Posted by Rated S

If you have a pressure tester then I would do it just in case. It's just that when you unplugged the MAF during idle and it smoothed out, I've always cleaned the MAF and it almost always helps.
It's a $3 bottle of MAF cleaner, and takes 2 Torx screw (remember to have 'security' torx bit with the hole in the middle of it for the MAF screws) and about 20 minutes clean/dry.

Yea im gonna clean it after work. And if that dont help im gonna take the s to Exaltmotorsports this saturday for a leak test.

**AudiSportB5S4** · 09-15-2008 07:15 PM

for sure sounds like a MAF issue and yeah, you have a 2000 like i have and we have the Bosch sensors that suck the big ass... they can go anytime.

just go stage 3, you'll get the mbox conversion and you'll have a happy life thereafter with hitachi!

**xx_s4quattro_xx** · 09-15-2008 07:33 PM

Originally Posted by AudiSportB5S4

for sure sounds like a MAF issue and yeah, you have a 2000 like i have and we have the Bosch sensors that suck the big ass... they can go anytime.

just go stage 3, you'll get the mbox conversion and you'll have a happy life thereafter with hitachi!

i will never get to go stage 3 anytime soon with all these problem. Lol but the maf is cool i didnt even need to clean it just plugged it in and drove smooth. I really think its a boost leak because i can feel a lost of hp so im gonna get the boost leak test tomorrow. It only bogs down when i WOT.