MMett

I just finished my Aristo swap. Got the engine up to operating temperature, drove around the neighborhood. Went out onto the open road and when I got under throttle the car started to sputter, and then died. When I go to restart the car it starts and runs for one second and then dies I have to turn the key completely off and then try to start it again to get it to do the same thing. Any ideas what this might be?

MMett

Note. I’ve checked coil connections and pulled the return line to see I was getting fuel

MMett

Update: I disconnected my MAF and the car runs but won’t go over 3000 and the CEL is on. I’ve got a code reader coming.

IS250DIYER

Fuel pressure sensor?

Angryspice

Not to sound like a d!#ck but of course the CEL is going to be on if you unplug the MAF sensor. Was the light on prior to the car stalling?

MMett

yes the light was on prior. Car just wouldn’t run with it plugged in.

Angryspice

test that maf sensor as well.. might have something going on there.

MMett

So I managed to pull codes and got

iat sensor signal and air flow meter.

where is the iat sensor on an aristo engine?

badblackgs

iTrader: (1)

those codes are both Maf sensor related. My suspicion is that an inter cooler pipe came off. That would cause those symptoms. If the air going into the engine doesn’t ALL go thru the maf sensor, than it won’t run.

MMett

the MAF is before the turbos, so an intercooler pipe coming off wouldn’t affect it

firelizard

iTrader: (1)

If an intercooler pipe came off, a different amount of air is entering the engine than has been measured by the MAF.

badblackgs

iTrader: (1)

you might want to put more thought into that statement. than you might find your problem.

steamboat1

I have an Aristo. 100% Intercooler Pipe coming off. I have had it happen a couple of times, exact same symptoms.

MMett

i just want to say you were right. I did blow an intercooler pipe. It’s running great now.