yeah, you should definately see 8 psi, and sometimeseven spikes of 10psi if youre lucky. It does sound like limp mode.

 

ok well i'll use vag and clear the codes tommorow then i'll disconnect the maf and see what happens.

 

dude, sounds like my problem, i was running strong, then boom, ":limp" mode, bought a guage and i ran 5 psi, so i get it cleared and was spikinbg about 10, setteling about 7 or 8

a bad maf won't make you run limp, from what the audi mechanic told me, my problem was a bad thrust sensor, but is your code 0171? that is what i had

 

tthe only current code i get from the engine is 17536, Fuel trim bank 1, system to lean

 

I think it's probably the CEL as well. I had a similar code happen to me except mine was running too rich. The CEL would not even light up and I would go into limp mode (I have GIAC FXKO3 with Genesis injectors so I would go down from 19-20psi to 5psi). When scanning the car, I would see the DTC but no CEL. One time I had my girlfriend clear the code while I was driving and the boost came back instantaneously..... until I got the DTC again!!!

 

Yes a bad maf will make you go into limp mode. A bad maf can cause you to run lean. Running lean can cause detonation wich kills engines. I went into limp mode when my maf was dying.

You shouldnt do that, you can kill the ecu by doing that.

 

Quote (as you can see, I haven't figured that one out yet!)
You shouldnt do that, you can kill the ecu by doing that.


Ha Ha, I know, it was a quick one time experiment!!!

 

I keep hearing people say detonation, WHAT IS THAT???? I know thats a dumb question but I truly don't know. Thanks

Josh

 

Damn dude... Try a search every once in a while.

 

I know, but does it really kill you to say detonation is...?

Josh