so i was driving my car on july 4th and it was running great until it decided to stall out...so i started checking it out and when i unpluged the MAF and the engine stayed running and i was able to drive it (without any boost) so i figured it was the sensor that was shot so i bought a new one and replaced it but still the same problem it will idle up and slowly go down until it stalls....any help or opinions on what the hell is going on?

 

We're gonna need more info. Sounds like a vac leak or a boost leak.

 

how would i find out should i get it hooked up to a computer or would that not tell me

 

See if they can pull any codes. Other than that check all sensors for damage and check boost piping and vacume hoses.

 

check your rubber hose's too they might have popped off.

when you where driving was this right after you let of the gas?

code's would be sweet!!

look over every thing!

good news is it sounds like a cheap fix

 

maf sensor could still be bad.. they re-build them and sell them over it happened to me...

 

Take it to the dealer. Warranty FTW!

 

Are the turbocharged models really this unreliable? Seems like everybody who owns one, both people I know in person and through forums, have had nothing but powertrain-related issues with them.

 

Not really, got 23000 miles on mine and no drivetrain problems. Knock on wood

 

My 2010 only has a loud noise from brakeing. Other then that wipers?

 

okay guys codes are as followed P0090 and P0100 any info!

 

Yes, you have to occasionally run it on the blood of a virgin or unicorn tears to keep problems from developing.

 

make sure your intake is still sealed correctly

no guy, what his problem is is his cars breathing, thats the problem

thats from your intake not being attached, i had the same problem when i put on my aftermarket intake, check your pipes

 

so make sure my intake is on right and charge pipes?

 

It could have thrown those codes after you decided to pull the MAF out as well.. May not be directly related to the problem you are having.

 

yep that should be your problem if not then you do need to take it to the dealership. but from how you desribed it, it sounds like your intake

 

so what do the codes mean

 

jazer is probably right, you could have thrown codes when you pulled out the MAF, you can get those thrown codes deleted and the check engine light will go away, if you want to know what they mean then google them, i dont remember what they mean,

 

i had the guy delete the codes n my cel went away but wen i plugged the maf back in it still stalled

 

pipes are fine? what about your intercooler, and holes? make sure everything is tight

 

Mass Air Flow(MAF) Sensor P0100 / Primary Malfunction = sensor signal time period

High Pressure Fuel Volume Control Valve Circuit rationality P0090 Primary malfunction =
Voltage test pulse - off command within window.

This is what the codes are listed as, hope it helps.

 

what do i do about them to get it runnning to full potential without taking it to a dealer dnt realy have the funds to send it to GM

 

Gotta be a boost leak. You need to pressure test it, but you'll need a compressor and a boost leak jig to do it. Did this problem occur after letting off a WOT run? I assume it did because it was July 4th. You probably cracked the intercooler endtank. It's unfortunately a common problem with high boost cars.