Squash fuel system (fuel pressure sensor) - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

jasycz28 · 03-23-2016, 08:18 PM

Quote:

Originally Posted by JustaCamaro

I have the Squash Fuel system. I put a pressure sensor on my fuel rail and use that signal to one of the analog inputs to my SCT device. I datalog through that.
Setting up the transfer formula was a PITA, but after that all is good.

Can you explain how you did this or do you have any pics?

JustaCamaro · 03-25-2016, 04:16 PM

Here is a picture of the pressure transducer. I got it from Ted Jannetty.
The fuel block I built.

jeff657756 · 04-20-2017, 10:42 AM

Bringing this thread back to life.

I have AGP dual pump setup w/ return. FPCM is still plugged in. Fuel pump power wires are unplugged of course. I have not messed with the fpcm at all.

My question is, should I still be seeing fuel pressure through hptuners or other software? I do get the code p023f and understand what it is and that it wont go away until i unplug the fpcm. But if i can at least get some idea of what my FP is then i dont mind the CEL being on. I just dont get a reading for fuel pressure, bounces around 0.

enloe · 04-20-2017, 10:49 AM

Quote:

Originally Posted by jeff657756

Bringing this thread back to life.

I have AGP dual pump setup w/ return. FPCM is still plugged in. Fuel pump power wires are unplugged of course. I have not messed with the fpcm at all.

My question is, should I still be seeing fuel pressure through hptuners or other software? I do get the code p023f and understand what it is and that it wont go away until i unplug the fpcm. But if i can at least get some idea of what my FP is then i dont mind the CEL being on. I just dont get a reading for fuel pressure, bounces around 0.

You can retain the FPCM with a return system. I did this successfully a couple of weeks ago on my own ZL1. HPTuners has a beta version of software now that allows access to the FPCM calibration. With this, you can change settings in the module. I am even using the FPCM to run the primary pump at 99% duty cycle and using a pressure sensor and relay to run the secondary pump. I have the fuel pressure sensor hooked up and I am able to monitor the pressure through a scanner.

jeff657756 · 04-20-2017, 10:51 AM

Quote:

Originally Posted by enloe

You can retain the FPCM with a return system. I did this successfully a couple of weeks ago on my own ZL1. HPTuners has a beta version of software now that allows access to the FPCM calibration. With this, you can change settings in the module. I am even using the FPCM to run the primary pump at 99% duty cycle and using a pressure sensor and relay to run the secondary pump. I have the fuel pressure sensor hooked up and I am able to monitor the pressure through a scanner.

So i should be able to see pressure still? Like i said, i still have it hooked up but the old pump power wires are disconnected causing the code. not sure if the code is causing pressure to read 0 or if something else needs to be done to get the stock fp sensor to turn back on.

ADM PERFORMANCE · 04-20-2017, 10:24 PM

So we have a factory fuel pump controller running 2 e85 pumps with a regulator with a return set to 72psi at full voltage and no boost reference working flawlessly on e85 and 850 rwhp and the fuel pressure sensor is still working since we have an OEM FPCM

ZX1truth · 04-20-2017, 11:19 PM

Quote:

Originally Posted by ADM PERFORMANCE

So we have a factory fuel pump controller running 2 e85 pumps with a regulator with a return set to 72psi at full voltage and no boost reference working flawlessly on e85 and 850 rwhp and the fuel pressure sensor is still working since we have an OEM FPCM

Excellent info brutha! Much appreciated.

enloe · 04-21-2017, 12:44 AM

Quote:

Originally Posted by ADM PERFORMANCE

So we have a factory fuel pump controller running 2 e85 pumps with a regulator with a return set to 72psi at full voltage and no boost reference working flawlessly on e85 and 850 rwhp and the fuel pressure sensor is still working since we have an OEM FPCM

That is awesome. I am doing this with a lower regulator pressure setting. Nice to know it is being done by someone else. I was being told it can't be done...had me worried.

jeff657756 · 04-21-2017, 08:02 AM

Quote:

Originally Posted by ADM PERFORMANCE

So we have a factory fuel pump controller running 2 e85 pumps with a regulator with a return set to 72psi at full voltage and no boost reference working flawlessly on e85 and 850 rwhp and the fuel pressure sensor is still working since we have an OEM FPCM

I must have done something done something to my fuel pressure sensor/wiring then during install. Mine doesnt want to work anymore.

760bowtie · 07-21-2017, 12:16 PM

Any recommendations on a good aftermarket fuel pressure kit?

03-25-2016, 04:16 PM	#16
JustaCamaro Drives: 2010 Camaro SS Join Date: Feb 2010 Location: Oklahoma Posts: 247	Here is a picture of the pressure transducer. I got it from Ted Jannetty. The fuel block I built. Attached Images __________________ LSX 429, Vortech V7 YSI, Squash Fuel system, Jannetty Tuned.

04-20-2017, 10:42 AM	#17
jeff657756 Drives: 2014 SS 1LE Join Date: Apr 2014 Location: United States Posts: 660	Bringing this thread back to life. I have AGP dual pump setup w/ return. FPCM is still plugged in. Fuel pump power wires are unplugged of course. I have not messed with the fpcm at all. My question is, should I still be seeing fuel pressure through hptuners or other software? I do get the code p023f and understand what it is and that it wont go away until i unplug the fpcm. But if i can at least get some idea of what my FP is then i dont mind the CEL being on. I just dont get a reading for fuel pressure, bounces around 0. __________________ https://instagram.com/jp_1le/

04-20-2017, 10:24 PM	#20
ADM PERFORMANCE Drives: Anything I want Join Date: Oct 2008 Location: DfW - Texas Posts: 5,407	We have been beta testing - Squash So we have a factory fuel pump controller running 2 e85 pumps with a regulator with a return set to 72psi at full voltage and no boost reference working flawlessly on e85 and 850 rwhp and the fuel pressure sensor is still working since we have an OEM FPCM

07-21-2017, 12:16 PM	#24
760bowtie Drives: 2014 1SS/RS, 2018 Silverado CC Join Date: Apr 2014 Location: Oceanside, CA Posts: 1,487	Any recommendations on a good aftermarket fuel pressure kit? __________________ AGP 57/57 turbos and Dual Pump System, NA Cam, McLeod RXT clutch, MGW shifter, ZL1 Rear End, BMR Trailing Arms/Toe Rods, Pegasus Solid Cradle Bushings 10.7 @140mph M6