2017 Camaro Gen V LT1 No Low Pressure Fuel Reading Hp Tuners

I have a Gen V LT1 out of a 2017 camaro that I am putting in a 1964 Pontiac Bonneville Wagon, I got a aftermarket harness, cam swap to a Texas Speed Stage 1 Cam, stock exhaust Manifolds, Stock intake manifolds. Currenlty just installed the motor in the car and am running the stock camaro fuel tank until I get a fuel tank built by Ricks Tanks. My issue is I chose to run the PWM stock fuel pump with the Fuel Pump Module that GM sells for its erod. Car runs fine but seems to be putting out too much fuel pressure, with a gauge showing around 80 PSI. The sensor seems to be working, I can see Voltage fluctuate from the sensor all the way to pin 2 but showing 0 when trying to read the low pressure PID. I depinned from pin 2 and pinned to pin 6 just so I could prove the circuit was working and it is, pin 6 is the a/c pressure signal. I logged and proved the sensor to be ok by seeing the sensor signal change when fuel pressure went from 0 up to pressure. This was of course not reading the correct fuel pressure because the computer is looking for a different range on the AC pressure sensor but it proved that everything is wired and is getting to the computer. Wired everything back up and still not seeing any pressure from fuel pressure sensor.

Another problem is I can edit the pressure settings in editor moved them all to 50 and still did not see any change in fuel pressure. Looks like its communicating because when I power up the computer it does turn the fuel pump on for a couple of seconds and turns off. Like I said it does crank and run fine just afraid my fuel pump is not going to last because it seems to be running full boar all the time.

So I have two issues,

1. Not seeing low fuel pressure PID with HP tuners.
2. ECU dont seem to be controlling the fuel pressure control module to the fuel pump.

Quote:

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Originally Posted by [email protected]

I have a Gen V LT1 out of a 2017 camaro that I am putting in a 1964 Pontiac Bonneville Wagon, I got a aftermarket harness, cam swap to a Texas Speed Stage 1 Cam, stock exhaust Manifolds, Stock intake manifolds. Currenlty just installed the motor in the car and am running the stock camaro fuel tank until I get a fuel tank built by Ricks Tanks. My issue is I chose to run the PWM stock fuel pump with the Fuel Pump Module that GM sells for its erod. Car runs fine but seems to be putting out too much fuel pressure, with a gauge showing around 80 PSI. The sensor seems to be working, I can see Voltage fluctuate from the sensor all the way to pin 2 but showing 0 when trying to read the low pressure PID. I depinned from pin 2 and pinned to pin 6 just so I could prove the circuit was working and it is, pin 6 is the a/c pressure signal. I logged and proved the sensor to be ok by seeing the sensor signal change when fuel pressure went from 0 up to pressure. This was of course not reading the correct fuel pressure because the computer is looking for a different range on the AC pressure sensor but it proved that everything is wired and is getting to the computer. Wired everything back up and still not seeing any pressure from fuel pressure sensor.

Another problem is I can edit the pressure settings in editor moved them all to 50 and still did not see any change in fuel pressure. Looks like its communicating because when I power up the computer it does turn the fuel pump on for a couple of seconds and turns off. Like I said it does crank and run fine just afraid my fuel pump is not going to last because it seems to be running full boar all the time.

So I have two issues,

1. Not seeing low fuel pressure PID with HP tuners.
2. ECU dont seem to be controlling the fuel pressure control module to the fuel pump.

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Any Help or suggestions really appreciated.

The lack of a fuel pressure reading is a bug in the scanner. Its been this way for a couple of years now.

At what coolant temp are you seeing 80 psi? Once the ecu goes into "hot fuel mode", the pressure should drop between 40 and 50 psi.

Is the FPCM from the 2017 LT1 Camaro installed into the Project Car?

The fuel pressure gauge does not change I have run the car several times up to normal operating temps 200-210 with no fuel pressure changes.

The fpcm from the project car will not work because of all of the body modules it used that?s what I was told by the harness manufacturer so it has a fpcm that is used on Gms 23382215.