replaced the mass air flow and still problems

**Erock** · 04-04-2008 05:11 PM

well on my way to work this morning my car dies for no reason so i get out after numerous tries of restarting and still nothing so i unplug the maf and it fires right up but misfires at 3k. So today i picked up a another maf and put it in and it started right up but as soon as i hit the gas it died. What would cause that to happen? could it be another maf dead?

**maxspeed** · 04-04-2008 06:17 PM

how your plugs looking? covered in gas?

**CSHO1.8t** · 04-04-2008 06:32 PM

Yeah change your plugs! Its unlikely that the new MAF is dead already.

**ladedruck** · 04-04-2008 06:43 PM

i have seen this caused by a bad fuel pump. It would only make 1 bar of pressure. With the mafs unplugged in a limp mode it would run but as soon as you plugged it in and tried to take off it fell flat on it's face.
However it more likely is a giant boost leak. IC hose blown off etc.

**Erock** · 04-04-2008 09:18 PM

the weird thing is that when i drove it home from work with the maf unplugged it boosted to 12psi and yes my plugs are covered in gas

**UN-PIMP-Z-A4** · 04-05-2008 12:42 AM

When that happened to me my pcv valve had cracked and i hadnt noticed until i went to change my injectors...
(which caused a major boost leak)

**llA4benll** · 04-05-2008 12:38 PM

i had a problem like that, try checking all of the wires that are plugged in the MAF. Make sure there are no cracks . and pull on the wires a little bit to make sure they dont just seperate easily.

**MacA4** · 04-05-2008 02:05 PM

Check for boost leaks mentioned above. I came across a friend and his car would start and Idle... but as soon as he tried to take off it died. Turned out to have a hose come off before the inner cooler.