Fuel Pressure Regulator

[Slovik]

I have an older style Fuel pressure regulator with the regulator on the fuel rail, I would like to use it in my S52 OBD2 swap, any issues with not hooking up the FPR plug on the engine harness. Will I get a cel or a no start without a fuel pressure signal to the computer.

[mammoth_e30]

you will def get a CEL if you use the M50 fuel rail and leave out the S52 FRP located near the fuel filter.

[Slovik]

Thanks that what I thought, any running issues? Maybe I can get Markert or one of the other tuners to program out the light.

[mammoth_e30]

Not sure about running issues as i am not familiar with that setup but one of the other guys on here might know, maybe even Dave Markert as he has done a few OBD2 swaps. He can get that CEL deleted for ya too.

Why do you want to run the old fuel rail with an OBD2 swap anyways?

[Slovik]

Thanks Mamouth for the responses, I'd like to run old style fuel rail only because thats what I have on hand and it seems simpler to install. Dave did a fantastic job on my harness so I'll just get back with him on deleting the fpr cel light.

[jrdeamicis]

I thought the FPR rating of the OBD2 FPR and the OBD1 was different also.

You wont be able to delete that light.

[Slovik]

I think both are 3.5 bar, but I could be wrong, I'm just going to do it the right way and find a 96 on pressure regulator. I've got 2 e36 w/pressure regulators on them if any one needsone or wants to trade for a later model one.

Thanks,

Seth