92 tpi 350 low fuel pressure
11-18-2006 | 05:20 PM
#1
Thread Starter
Joined: Nov 2005
Posts: 162
Likes: 0
From: Florida
Car: 92 z28 25th
Engine: 5.7 liter
Transmission: 700-R4
92 tpi 350 low fuel pressure
threw a guage on my motor out of curiosity and at idle the fuel pressure is at 35 psi. Does that sound right? i thought idle pressure was supposed to be 45psi. When i rev the motor the pressure spikes to 50psi and returns to 35psi.
11-18-2006 | 11:18 PM
#3
Member
Joined: Oct 2003
Posts: 306
Likes: 3
Car: 1991 GTA
Engine: SuperRam 350
Transmission: 700R4
Axle/Gears: 3.73
Fuel pressure with the vacuum still connected to the regulator will be about 7-8 psi lower for a smoother idle. Do as Drac0nic says to get an accurate reading.
11-20-2006 | 10:34 AM
#4
Thread Starter
Joined: Nov 2005
Posts: 162
Likes: 0
From: Florida
Car: 92 z28 25th
Engine: 5.7 liter
Transmission: 700-R4
cool. no i didnt disconnect it. Ill try that. Am i right in thinking the base pressure should be 45 psi? 45 with the line connected or disconnected?
11-22-2006 | 09:55 PM
#5
Junior Member
Joined: Nov 2003
Posts: 44
Likes: 0
From: Charleston,SC
Car: 1985 IROC
Engine: none
Transmission: A4
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