View Single Post
Old 04-20-2012   #8
scottfab
 
scottfab's Avatar
 
Join Date: Jan 2009
Location: Portland Oregon metro area (Washington side)
Posts: 3,193
Default Re: Intermittent SES Light

Quote:
Originally Posted by c4zr1 View Post
Well I thought I had my problem solved, but need some help. I did the AB pin jumper and getting codes 34, 44, and 54. I can drive the car about 5 miles and the SES light will go off and the secondaries start working. By the time I get back home after 10 or 15 miles the SES light comes back on.
Sure does sound exactly like what I saw when the secondary fuel pump stated failing intermittently. All was fine for the first few WOTs but just like when the vacuum pump works at 50% when an extended WOT happens the 42 gets set.
I eventually attached a pressure gauge and routed it up to the windshield so I could see it drop during the WOT. It dropped to 44 when the code set. A good secondary pump keeps it at 50 or so.
Good luck
__________________
Scott


Vett owner since 1979._It's about the car and the people
scottfab is offline   Reply With Quote