PROBLEM ----> 88 35th
Thread Starter
Melting Slicks
Joined: Jul 2003
Posts: 3,413
Likes: 138
From: Texas
PROBLEM ----> 88 35th
My cousin has had this ongoing problem with his 35th, he has replaced cap, coil, rotor, and had replaced his injectors, he says that when he has the FP(?) fuse out, the car works and idles good until it runs out of gas. But when the FP fuse is back in, the car runs like crap... can ya help??
Thanks guys :cheers:
Thanks guys :cheers:
Team Owner
Joined: Jan 2003
Posts: 20,297
Likes: 240
From: Summerland B.C. Canada
Re: PROBLEM ----> 88 35th (ZF Six)
Has he doubled checked fuel pressure while idling and driving
I still think their is a problem with his fuel reg or pump
:smash:
Good Luck
:cheers:
I still think their is a problem with his fuel reg or pump
:smash:
Good Luck
:cheers:
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: PROBLEM ----> 88 35th (AGENT 86)
:iagree:
He needs to put a gauge onto the Schraeder valve to check out fuel pressure with the vacuum line connected and with it disconnected.
He can lay the gauge on the windshield, under a wiper blade, to monitor pressure while driving.
With that fuse removed the fuel pump is not running so the fuel rail is losing pressure over time. At part thorttle or idle the O2 sensor should keep the A/F correct if in closed loop. He should check to see if the O2 sensor & coolant temp sensor are working properly. There is a method on my site to check if the ECM is going closed loop using a paper clip into the ALDL. He can easily check this out before buying the FP gauge.
[Modified by 65Z01, 11:10 PM 3/3/2004]
He needs to put a gauge onto the Schraeder valve to check out fuel pressure with the vacuum line connected and with it disconnected.
He can lay the gauge on the windshield, under a wiper blade, to monitor pressure while driving.
With that fuse removed the fuel pump is not running so the fuel rail is losing pressure over time. At part thorttle or idle the O2 sensor should keep the A/F correct if in closed loop. He should check to see if the O2 sensor & coolant temp sensor are working properly. There is a method on my site to check if the ECM is going closed loop using a paper clip into the ALDL. He can easily check this out before buying the FP gauge.
[Modified by 65Z01, 11:10 PM 3/3/2004]
