Testing Fuel Pressure

[Leonidas514]

What's the best way to test fuel pressure to see if it's rising as it should under boost? I don't see anything in the log that would indicate fuel injector pulse or fuel pump voltage, etc...

Car still won't reach 7500 rpm. I tested my E85 again, it's 90%. Cleaned my fuel filter and installed new injectors. Thinking maybe at this point it's a fuel pump starting to fail. I am running the Fore Triple Pump setup with Sai Rails

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[engineermike]

There are fuel pressure sensors so the data can be logged with a good scanner.

 

[engineermike]

What year is the car?

 

[Leonidas514]

What year is the car?

2015. It has the gauge on the Aeromotive regulator but obviously I can't see that under boost.

 

[engineermike]

Ok for sure the 2018 has both low pressure and high pressure sensors and logging ability. I believe the 2015 does as well. The pcm actually calculates injector flow based on measured fuel pressure, calculated manifold pressure, and injector characteristics.

 

[Leonidas514]

Ok for sure the 2018 has both low pressure and high pressure sensors and logging ability. I believe the 2015 does as well. The pcm actually calculates injector flow based on measured fuel pressure, calculated manifold pressure, and injector characteristics.

Ok. I'll scroll through the n gauge and see if I see anything. It definitely doesn't log it with my setup for whatever reason. Thanks Mike

 

[LethalPerformance]

2015. It has the gauge on the Aeromotive regulator but obviously I can't see that under boost.

Put a GoPro in the engine bay by the fuel pressure gauge or run another vacuum/boost line into the car to use another mechanical gauge.

 

[Leonidas514]

Put a GoPro in the engine bay by the fuel pressure gauge or run another vacuum/boost line into the car to use another mechanical gauge.

The go pros a great idea! Thanks man!

 

[Jackson1320]

2015 pcm can not see fuel pressure. You can use some kind of video record device as stated or you can buy the sensor from Lund and Analog it into ngauge. Or get a remote pressure gauge.

 

[illtal]

2015 pcm can not see fuel pressure. You can use some kind of video record device as stated or you can buy the sensor from Lund and Analog it into ngauge. Or get a remote pressure gauge.

cosign this

the 18+ has a fuel pressure sensor on the rail that the 15-17 did not have

 

[skymaster]

cosign this

the 18+ has a fuel pressure sensor on the rail that the 15-17 did not have

how would u get the data from a 18+? I'm trying to see if i get fuel pressure atm. I am guessing i have a dead fuel pump.

 

[illtal]

Plug in any device that can read pids and it will say something like lift pump pressure.

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