Sorry bit long but please read - need help with a start problem:
I have finally completet the installation of the following new parts:
Trick Flow heads and roller rockers pushrod lifters
Summit MAF calibrated for 30 lbs injectors
Trick Flow 30 lbs injectors
Edelbrock 70 mm TB and EGR plate
Aeromotive adjustable fuel pressure regulator
Otherwise the car is as per signature and/or original/stock.
Upon finishing all the installation work today the car started up nicely, but the fuel pressure was way too high reading about 60 psi on my in-car gauge.
After a couple more start ups and adjusting the FP down to around 48 psi no vacuum / 42 psi vacuum attached then the car suddenly wouldnt start.
It has spark on the plugs and cranks over but no start. Plugs appear dry.
The fuel pump doesnt sound good at all, but the pump seems to work somehow as the fuel pressure rises immediately when turning on the ignition.
I did increase the fuel pressure back to 60 psi since the car started initially at this pressure, but no surprise this didnt help.
Then I scanned the codes and got two: Code 67 which I have had for a long time and I am pretty sure this has nothing to do with not starting now - and also Code 96 in the continous memory.
Code 96 reads: "High speed fuel pump relay circuit open, Fuel pump secondary circuit failure"
I understand the words, but not really what it means...
Anyhow, it seems obvious that it is fuel/fuel pump related - but what puzzles me is that I get a solid high fuel pressure when igntion on??? I would imagine I should have no fuel pressure if the pump or pump relay didnt work?
The fuel pressure drops to about zero on the gauge when cranking the engine.
I have a brand new Trick Flow 190 lph fuel pump which I havent installed yet - but what do you people think?
Does anyone have experience with code 96?
Where is the fuel pump relay located, and what does the error message really means...?
Sake order the fuel pump I have in the car right now is the original one, and total mileage is about 90,000 miles.
Help/advice/input greatly appreciated!
I have finally completet the installation of the following new parts:
Trick Flow heads and roller rockers pushrod lifters
Summit MAF calibrated for 30 lbs injectors
Trick Flow 30 lbs injectors
Edelbrock 70 mm TB and EGR plate
Aeromotive adjustable fuel pressure regulator
Otherwise the car is as per signature and/or original/stock.
Upon finishing all the installation work today the car started up nicely, but the fuel pressure was way too high reading about 60 psi on my in-car gauge.
After a couple more start ups and adjusting the FP down to around 48 psi no vacuum / 42 psi vacuum attached then the car suddenly wouldnt start.
It has spark on the plugs and cranks over but no start. Plugs appear dry.
The fuel pump doesnt sound good at all, but the pump seems to work somehow as the fuel pressure rises immediately when turning on the ignition.
I did increase the fuel pressure back to 60 psi since the car started initially at this pressure, but no surprise this didnt help.
Then I scanned the codes and got two: Code 67 which I have had for a long time and I am pretty sure this has nothing to do with not starting now - and also Code 96 in the continous memory.
Code 96 reads: "High speed fuel pump relay circuit open, Fuel pump secondary circuit failure"
I understand the words, but not really what it means...
Anyhow, it seems obvious that it is fuel/fuel pump related - but what puzzles me is that I get a solid high fuel pressure when igntion on??? I would imagine I should have no fuel pressure if the pump or pump relay didnt work?
The fuel pressure drops to about zero on the gauge when cranking the engine.
I have a brand new Trick Flow 190 lph fuel pump which I havent installed yet - but what do you people think?
Does anyone have experience with code 96?
Where is the fuel pump relay located, and what does the error message really means...?
Sake order the fuel pump I have in the car right now is the original one, and total mileage is about 90,000 miles.
Help/advice/input greatly appreciated!