Pretty sure i fried my ecu :(

[Schwarz325]

Well after sorting out the vibrations with my car, which took a smaller spacer on the driver's side. I went got gas and drove it around for a few minutes, got home went to start it and BAM..nothing, just starter clicking. All the lights come on, can't hear the fuel pump tho. It didn't give me any hints or anything while driving. I did smell gas in the cabin, but when i popped the rear seat, one of the screws on the fuel pump cover was missing, so i think that's where the fumes came from.


It's throwing a 1A code, that says "control unit supply".


I'm running a 413 red label. Sound like the ecu gone?

I went over most of the wiring and everything was fine. I'm still gonna check the rest of it.

[Boosted E30]

Maybe your battery is dead? Or you have a poor ground somewhere.

[99em1]

Think I'm troubleshooting the same exact thing right now. Do your lights dim when you turn to position 3? Mine don't, and I just get one single loud click. Although I don't know if its the typical solenoid click or the bendix gear hitting the flywheel and simply not turning.

Also, do you still get fuel prime with the key in position 2? I'm not getting any prime.

If your problem is like mine it's not the dme, as I've swapped batteries, fuel/main relays and a working dme. I'm thinking it's a connection/ground issue so thats next.

[matt]

Uh guys... the ECU has nothing to do with your starter. At all.

[99em1]

Yeah not having fuel pressure doesn't either. It's still a problem nonetheless.

[googone20]

Fuseable link or fuse issue?

[nando]

Yeah not having fuel pressure doesn't either. It's still a problem nonetheless.

er, except the fuel pump is turned on by the ECU.

how about a bad relay?

[Schwarz325]

Think I'm troubleshooting the same exact thing right now. Do your lights dim when you turn to position 3? Mine don't, and I just get one single loud click. Although I don't know if its the typical solenoid click or the bendix gear hitting the flywheel and simply not turning.

Also, do you still get fuel prime with the key in position 2? I'm not getting any prime.

If your problem is like mine it's not the dme, as I've swapped batteries, fuel/main relays and a working dme. I'm thinking it's a connection/ground issue so thats next.

Exact same fuckin problem and it's kill me haha. I've tried relays, fuses, everything, but swapping the ecu.

See, i had a similar thing happen when i first raised the engine to put a spacer under the driver's side mount but i wiggled the battery cables and it fired up. So i went over the wires and everything last night and couldn't find anything. But i'm gonna go over it in more detail tomorrow.

My lights are light up bright and everything. I did smell gas, but the fuel pump cover was up and missing a screw so that may be why i smelled gas. Aand it was right after i filled up.

No fuel prime either, it used to be loud as crap, now nothing.

Matt, you misread it. Start is the only thing that works. You can hear it click, as in getting 12v to the solenoid. Everything else is shut down.

[matt]

If it's not turning over the motor, then the starter is the only thing that's NOT working.

[dranttna]

i just had the same problem with the fuel pump. 413s burn the fuel relay ground out all the time for some reason. take a jumper to the relay socket and ground the contorl side, could be 85 or 86 depending on how yours is wired (DONT GROUND THE WRONG ONE) it the pump then works its the ecu. it it woulnt even crank its probly a ground, check the ground in the trunk too, they do come loose

[99em1]

er, except the fuel pump is turned on by the ECU.

how about a bad relay?

oh I was referring to the fuel issue not being related to the no crank problem.



to the OP you've already swapped out the main and fuel pump relays to rule them out right? sounds like we have the same exact prob and relays didn't fix anything. stomp test only spits out 1281. jumping fuel relay kicks the pump on. i think I jumped terminals 30 to 87 when I did it

[Schwarz325]

oh I was referring to the fuel issue not being related to the no crank problem.



to the OP you've already swapped out the main and fuel pump relays to rule them out right? sounds like we have the same exact prob and relays didn't fix anything. stomp test only spits out 1281. jumping fuel relay kicks the pump on. i think I jumped terminals 30 to 87 when I did it

U think it could be the fuel pump relay? I had a relay laying around i tried, i dunno if it was good lol.


Matt, the car isn't doing anything man. the motor doesn't even make an attempt to turn over, nothing. Only thing you hear like you hit a metal with a socket or something. And my fuel pump was noticably loud, when you first put the key in, nothing now.

[MR 325]

If the starter is NOT CRANKING then you have a problem with your starter. The starter will crank perfectly even with NO ecu plugged in.

[Schwarz325]

If the starter is NOT CRANKING then you have a problem with your starter. The starter will crank perfectly even with NO ecu plugged in.

Hmm that makes sense, cuz i tried starting a car once with the ecu unplugged and it was turning over. I don't think these have a starter relay?

[99em1]

But a comprehensive underlying electrical malfunction could be the cause of all these issues no? No one is saying one is causing the other. But they could both be happening for a reason. Especially when it happens at the same exact time.