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Pfc Hand Controller

smithy85

By smithy85,
in General Maintenance

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smithy85 Community Regular

smithy85

Posted
Posted

I have just put in some Denso 720cc injectors into the GTR and am now up to going through the PFC hand controller and adjusting the settings.

When I go into the the injector screen as per the FAQ it all reads 0.0% and 0.00ms, yet I was under the impression that it should read 100% with the standard injectors. Anyway I adjusted the correction to 61.6% and 0.19ms latency and the car started and ran, a little lumpy, but nothing too bad. I went out of that screen and back in but the settings I had just put in had all reverted back to the original 0.0% and 0.00ms.

Does anyone know why the settings aren't staying there? Could it have a Datalogit lock out for adjusting these kind of things? Assuming the computer is running the original settings but with the larger injectors,it would just be running rich, so will it be right to take to the tuners 10mins away? Or should I just chuck the old injectors back in and give it to the tuners to figure out?

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GTRNUR Grand Master

GTRNUR

Posted
Posted

Also in Paul's power fc manual is another reason the settings don't save. It can happen on situations where an engine converison has been done, you have used a power FC, but havent wired the relays and power to the ecu correctly. The information on how to fix this is in guide. If its note a wire in, you should also investigate those relays and wiring involved anyway.

The ECU is sent a signal to save when the ignition is turned off, but it actually turns itself off after about 3 seconds after you turn the key off. If you listen you should hear a relay click a few seconds after switching the key from on to acc.

BH_SLO32 Proficient

BH_SLO32

Posted
Posted

Hmm this explains why my power fc isnt saving.

25 conversion into r31.

It just turns off straight away. going to be a fun weekend the next one....

If it is an R33 RB25 you need constant battery power to pin 58.

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