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Brand New PFC not working.

USRB25S13
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USRB25S13 Enthusiast

USRB25S13

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Since the PFC isn't doing anything at all I can't change any settings. The comander screen is blank. I still don't think the ECM housing needs to be grouned. There is no place on the ECU housing to bolt it down. They give you double sided velcro tape to fasen the unit down.

Merli Grand Master

Merli

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Since the PFC isn't doing anything at all I can't change any settings. The comander screen is blank. I still don't think the ECM housing needs to be grouned. There is no place on the ECU housing to bolt it down. They give you double sided velcro tape to fasen the unit down.

They give you velcro to attach the support bracket to the unit so you can screw the bracket into the standard position.

When it's screwed into the standard position, the body of the PowerFC touches the metal of the chassis.

Instead of shooting the idea down, why don't you just try it? What have you got to lose?

USRB25S13 Enthusiast

USRB25S13

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Also cos u have done an engine swap is there somethin u have changed in the wiring loom that could of caused this?

I tried to ground the ECU with a ground cable and it didn't make any difference.

As for the wiring with the swap, all the engine wiring is untouched. I only had to extent the wires for the O2 sensor and MAF. And since the stock ECU works without any problems I would think my wiring should be ok.

I sent the ECU back the Japan where It will be sent to Apexi and tested. I sure hope they find a problem with it.

USRB25S13 Enthusiast

USRB25S13

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Ok. I am going over my cars wiring at the ECU to make sure there isn't a power or ground missing from mine that the PFC would need. I am having problems finding correct ECU pinouts. The one diagram I have show pin # 58 being backup power. At pin 58 there is a white/black wire but there is no power on it. I would think without power there my stock ECU wouldn't work right at all. So does anyone have a good power/ground pinout for an RB25DET series II motor?

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