What Wrong With My Ecu?

[R32_Damo]

When I got my car running or just ignition on theres a ref l.e.d on my computer just keeps flashing and doesn’t stop, is this normal or not?

What might be causing it?

How do you run the self diagnosis on the RB20 ECU?

My cars running heapz rich and miss' at 3500-4000, coils dont seem to be crackd tho, but I havent had a good look yet?

Any ideas,

Im going for a dyno tune soon just wantd 2 get it running bet betta b4 i take it there?

Thanks Damo!!!

[sigsputnik]

which computer? the ecu?? on your vl or a skyline? the number of flashes will indicate what the problem is.

[R32_Damo]

Yeh its the R32 computer?

Just keeps flashing red???

[sigsputnik]

here are the ecu codes (i checked the service manual but couldn't find them). the first digit is long flashes, the second digit is short flashes.

11 Crankshaft position sensor

12 MAF sensor circuit

13 Coolent temperature circuit

14 Vehicle speed sensor circuit

21 Ignition circuit

31 ECU

34 Knock sensor

43 Throttle position circuit

45 Injector leak

51 Ignition circuit

54 Auto signal to ECU

55 All OK

the best thing to do might be to hook up a consult unit. much better info.

[R32_Damo]

I cant get the codes or anythnig just keeps flashing red light as same pass?

I dont have a consult connection coz ive only used a engine loom?

Cars running like crap, rich as blowning black smoke, backfires n doesnt wanna rev over 3500 but if u baby it over 3500 it sorta goes betta?

It will cost heaps 4 me to give it 2 a dynoshop 2 fix, what do you think i should do????

[sigsputnik]

is it the ecu flashing? if the ecu is flashing, then it will be flashing in a certain sequence. count the flashes and then compare it to the table i pasted in above.

e.g. if it's one long flash and then two short flashes it's the MAF sensor.

[R32_Damo]

dont even turn the screw on ECU just flashs all the time. It doesnt do diffferent flashs just keeps flashing non stop smae speed same flash if u no what i mean?

[sigsputnik]

hmmm. i'm afraid i don't know what constant rate flashing means...?

[jeremymc45]

I'm sorry about bringing up this old topic. But did anyone by any chance figure this out. My vehicle is doing the same thing and it's a 89 gtst. was running fine then i go out the next day and boom this happens.