not enough fuel pressure
04-15-2008, 09:57 PM
#16
Registered User
Thread Starter
Join Date: Feb 2007
Location: long island , NY
Posts: 321
Does the car seem like its running like it is supposed to during the 3 secs. I had that same problem after a mail tune and found out I didnt get the same pcm back and the anti-theft kept shutting it down. It hadnt been disabled on that pcm. Had to send it back to get that fixed. We figured it out after checking the injectors with a volt meter. They would quit pulsing after a few seconds every time but then would start right back up. Worth a try.
04-15-2008, 10:06 PM
#17
Registered User
Join Date: Sep 2005
Location: Killeen, Texas
Posts: 347
i found out that my fuel pressure sits at 40 when the key is at the on position and 38-35 when the motor is on. the motor still stalls after 2-3 seconds and dies if i step on the gas. i also found out that the iac sensor only opens up 1-2mm if the key is on the on position. I am getting new tps and iac sensors tommorrow do you think this will solve the problem? i also checked all my grounds
When the engine dies what does the fuel pressure read?
04-15-2008, 10:18 PM
#18
Registered User
Thread Starter
Join Date: Feb 2007
Location: long island , NY
Posts: 321
04-15-2008, 10:38 PM
#22
Registered User
Join Date: Sep 2005
Location: Killeen, Texas
Posts: 347
04-16-2008, 10:32 PM
#25
Registered User
Thread Starter
Join Date: Feb 2007
Location: long island , NY
Posts: 321
Hey guys it turns out it was a bad maf sensor. When i unplug it the car runs fine but rich and when I plug it in the car dies. What is my best bet for a mass airflow sensor? Ive heard after market maf's are poor and stock ones are the best performance wise. What would you recommend and what setup are you running?
Thread
Thread Starter
Forum
Replies
Last Post
charchri4
General 1967-2002 F-Body Tech
11
04-14-2015 06:40 PM
chevroletfreak
LT1 Based Engine Tech
202
07-04-2005 05:00 PM