M52 Charcoal Can and FPS Install (to pass CA BAR OBD2)

[Balleristic31]

Sorry to bump an old thread, but this is huge for us California guys trying to get their OBDIIs legal.

Where on the engine harness does the pressure sensor and the charcoal connect to?

Still looking for an answer as to which pin numbers on the engine harness are to be used for this. Thanks all! Excellent thread!

[E30335i]

Do we need to use remote fpr or is the m52 e39 early m52 style with integrated fpr acceptable? Sent from my iPhone using Tapatalk

[Andrew325is]

Here's the shut-off valve with Volvo part # 9135805 compared with the other one. This looks like the one to get. Same connector as the BMW one and it comes with a dust filter attached to it that is removable. I was looking at the Volvo parts diagrams and the other one is suppose to have a dust filter attached too that's at the end of the hose, so may as well get the one that comes with one already.

[Andrew325is]

I'm not chiming in to say what you did is wrong, as it's a fine solution, but I'm going to pass along a couple alternatives that don't require drilling holes in the car, including one that is super simple. The shut-off valve (vent solenoid) is the part that makes installing the E36 charcoal canister necessary to begin with. So with that in mind, you can simply install an external shut-off valve and keep the E30 charcoal canister. Just put the cap on the bottom from an M60 car and attach that to a shut-off valve from a Volvo or Hyundai. The Volvo one is part # 9486016. It has a Volvo connector so make sure you get one of those, but if you want one that has the same connector as the BMW version get the Hyundai one (Edit: There's a Volvo one with the standard BMW (Kostal) connector with part # 9135805. It has an air cleaner attached to it.) The Volvo one is the same Pierburg brand. I couldn't found a Hyundai one that's Pierburg brand. The other solution is to install the Z3/318ti charcoal canister under the car. That's what I did on mine. I modified the bracket to attach it to a U bolt on the fuel filler pipe and a heavy duty zip tie on the other end. That way it's reversible with no permanent modifications.

[MrGreen]

Thanks for this thread man. I live in LA and i'm about to jump into an M52 swap.

Thats great Westin. Hope it all goes well!

[westin]

Thanks for this thread man. I live in LA and i'm about to jump into an M52 swap.

[MrGreen]

No problem, but it was answered above.

Yes to your edit. Both connectors are from e36 body harness and need to be added to the engine harness and ran to the trunk area of the e30 when installing.

[fastestbox]

Sorry to bump an old thread, but this is huge for us California guys trying to get their OBDIIs legal.

Where on the engine harness does the pressure sensor and the charcoal connect to?

[Kquigs_Yo]

I connected both those plugs (with fuses) directly to the main wiring harness that plugs into the ECU/DME. Wiring is easy. The hard part is disassembling the interior to nicely route them along the passenger side wiring loom all the way into the trunk area cleanly/safely/securely. That was fun. Prepare to break door sill trim clips!

What pins in the Engine Harness did you wire them into?

[Kquigs_Yo]

I connected both those plugs (with fuses) directly to the main wiring harness that plugs into the ECU/DME. Wiring is easy. The hard part is disassembling the interior to nicely route them along the passenger side wiring loom all the way into the trunk area cleanly/safely/securely. That was fun. Prepare to break door sill trim clips!

Good thing my interior already looks like shit. I won't get as bummed when i break shit lol.

[clavinZERO]

I connected both those plugs (with fuses) directly to the main wiring harness that plugs into the ECU/DME. Wiring is easy. The hard part is disassembling the interior to nicely route them along the passenger side wiring loom all the way into the trunk area cleanly/safely/securely. That was fun. Prepare to break door sill trim clips!

[Kquigs_Yo]

Yes to your edit. Both connectors are from e36 body harness and need to be added to the engine harness and ran to the trunk area of the e30 when installing.

Do you know where in the engine harness the two connections go to?

[MrGreen]

Yes to your edit. Both connectors are from e36 body harness and need to be added to the engine harness and ran to the trunk area of the e30 when installing.

[clavinZERO]

I am a bit unclear...

I see 2 harness connections. One sounds like it was extended through the car from engine bay to connect to that unit in fender well. The other one looks like it runs over to the driver side somewhere. Where does that second connection lead to?

I am swapping S52 with OBD2 very soon and want to make sure I nail this! Thank you.

EDIT:
I just read the post again... both connections make their ways to the engine bay harness?

[MrGreen]

Good work, I was planning on posting up something similar but now I can be lazy :)

:) thanks!


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