Fuel delivery problems
Thread Starter
Heel & Toe
Joined: Jan 2014
Posts: 22
Likes: 0
From: Waco Texas
What is at 32? Key on Engine off? Engine running? Engine running with hose off? You are doing a great job of tossing parts at it. We can keep doing it or you can try to do some proper diagnostics. Proper diagnostics needs proper steps. Lets start with KOEO and see if it gets to 32 or 42. If it does, we can proceed with starting it and seeing what it is. Once we get there, pull the hose off and see what it does. That is the beginning steps we have to take.
Team Owner
Joined: Jul 2004
Posts: 28,430
Likes: 3,282
From: Hartford WI
Fuel pressure reads 32psi. Pumps new, thought it was bad so replaced it again no change. Fuel pressure regulator is new and all the injectors and sending unit is new. I have checked it and it has not thrown any codes at all. No check engine light. I have ran every diagnostic check I can think of and Chevrolet didn't do any better. New plugs wires o2 sensor. No change. Im not just throwing parts. Every body you ask has a different opinion.
Thread Starter
Heel & Toe
Joined: Jan 2014
Posts: 22
Likes: 0
From: Waco Texas
Well I have checked everything. The IAC is new and so is the temp sensor in the front of the intake manifold as is the temp sensor in the plenum. I checked the fuel sending unit. Its working. The only thing I can think of is that the ECU is screwed. I had the voltage regulator go out in my alternator a while back and it put out so much current it melted the charging wire before it did a lock up and self destruct. I am thinking its not any sensor that is reading wrong. I think the ECU got fried in the power surge and is screwed.
