NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   -   Damn! What Can It Be? The Pfc? (https://www.nopistons.com/3rd-generation-specific-18/damn-what-can-pfc-34445/)

boostdfd3s 02-24-2004 09:01 PM

if we swapped in my stock ECU....would it have any effect on my car after i put it back in and tried to drive home? just checkin, lol

FikseRxSeven 02-24-2004 09:04 PM

waht are other ways to check for a bad ecu?

9BASE3 02-24-2004 09:09 PM


Originally Posted by boostdfd3s' date='Feb 24 2004, 09:01 PM
if we swapped in my stock ECU....would it have any effect on my car after i put it back in and tried to drive home? just checkin, lol

Nope. Wouldn't hurt a thing. I have one somewhere.. Just gotta find it! lmao!

sidewinderx7 02-24-2004 09:15 PM

if the ecu is getting the right resistances then it should be fine. I have gone over almost every electrical schematic from alldata! Im pretty good with wiring and electrical stuff, but dang.. it took me awhile to figure it out because i checked EVERYTHING...

turbovr6 02-24-2004 09:16 PM


Originally Posted by FikseRxSeven' date='Feb 24 2004, 10:04 PM
waht are other ways to check for a bad ecu?

there really is no "test" for it. the ecu is supposed to flash a code if it is bad, but that is a joke, you are going to rely on a bad ecu to tell you it is bad. The way I have done it at my shop is, after exhausting every other possibilty to correct a ecu related problem, I go for the big bucks and change the ecu. Honestly japaneese ecu's rarly go bad, the stock ones that is. GM computers on the other hand, wow I change them alot!

pengaru 02-24-2004 09:23 PM

9base3 where are you located? I'll stop by and give you a hand with it if it's not too far.

boostdfd3s 02-24-2004 09:24 PM

the IL-side of STL...o'fallon if youre familiar with the area

BoOsTin FD 02-24-2004 09:28 PM

Damn it, I have night class, Test that is. I would like to come too :(

pengaru 02-24-2004 09:28 PM


Originally Posted by boostdfd3s' date='Feb 25 2004, 03:24 AM
the IL-side of STL...o'fallon if youre familiar with the area

damn, thats a bit of a drive. other end of the state, I'll have to see if I can borrow the wifes car this weekend if you guys still havent figured it out, maybe?



the protege's CV would explode if i tried driving it that far grr.

twinturborx7pete 02-24-2004 10:04 PM

so let me get this straight. You DO get fuel? .. so your pump is working. You only do not get fuel when you "tie" the injector grounds?



Did you modify your harness for the PFC, i mean, cut the right wires?


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