not enough fuel pressure
Thread Starter
Registered User
Joined: Feb 2007
Posts: 321
From: long island , NY
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.
Registered User
Joined: Sep 2005
Posts: 347
From: Killeen, Texas
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?
Thread Starter
Registered User
Joined: Feb 2007
Posts: 321
From: long island , NY
Registered User
Joined: Sep 2005
Posts: 347
From: Killeen, Texas
Thread Starter
Registered User
Joined: Feb 2007
Posts: 321
From: long island , NY
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
Apr 14, 2015 06:40 PM
chevroletfreak
LT1 Based Engine Tech
202
Jul 4, 2005 05:00 PM