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Location:
Glossodia,NSW
Registered:
May 2002
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Car won't start
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Sun, 13 October 2002 07:58
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my ae82 corolla has been sitting in the driveway all week,it just wouldn't start,it wasn't getting any fuel.It turned out to be a loose ecu wire(WIRE FC).I had all mine bullet crimped together and the circuit opening relay wire had come apart.I reconnected it and BINGO the car started up.I moved it back into the garage and decided to properly solder all the ecu wires.When i was re-soldering the wires,i was careful to only do one wire at a time that way i wouldn't get any crossed/wrong connections.Now stupid me i forgot to disconnect the battery and instead of taping up the bare solder on each wire as i did each one,i left the whole lot until the end.
SOMETHING I'VE DONE WHILE SOLDERING THE WIRES HAS CAUSED MY CAR NOT TO START.IT WAS WORKING FINE AFTER I RE-CONNECTED THE LOOSE ECU WIRE,BUT NOW AFTER FINISHING RE-SOLDERING THE WIRES IT WON'T START UP.
HOWEVER THERE IS ONE DEFINITE THING I REMEMBER:-When i was preparing one of the wires(i can't remember which one) i managed to touch some bare solder of another wire(it was an ecu earth wire)and i heard a CLICK and thought nothing of it and continued to finish the job.When i finished i taped up each wire individually and then plugged the ECU back into the plugs.I went to start the car and it would not start up.It will crank over and actually fire up but for like 1/2 second only.It seemed like it was starving for fuel.But i did the fuel pump check with the service wire and all is ok.I checked the circuit opening relay/efi main relay/fuses/breakers/starter switch/ecu voltages at wiring connectors and at the ecu itself.
WHAT THE HELL HAVE I DONE.I'VE DONE EVERYTHING I CAN THINK OF,I WENT THROUGH MY MANUAL AND DID BASICALLY EVERYTHING IT SUGGESTS FOR EFI AND ECU PROBLEMS AND I CAN'T FIND A FAULT.I'VE NOW SPENT 2 FULL DAYS ON IT AND AT THE MOMENT I'M LOOKING AT TOWING IT TO MY LOCAL MECHANIC UNLESS SOMEONE CAN SUGGEST ANYTHING.
PLEASE HELP ME
Cheers Adrian
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Location:
Melbourne
Registered:
May 2002
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Re: Car won't start
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Sun, 13 October 2002 08:40
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Could that click have been a circuit-breaker going off?
Check your soldering jobs?
Perhaps leave the battery disconnected for an hour then reconnect it?
Just giving suggestions.
I feel you are afraid you fried you ECU dude, I can read between the lines 
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Location:
Coffs
Registered:
May 2002
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Re: Car won't start
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Sun, 13 October 2002 09:49
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I hope you get every thing worked out with out to much trouble or money. I know what its like to have ya car off the car.
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Location:
Western Sydney
Registered:
May 2002
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Re: Car won't start
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Sun, 13 October 2002 13:22
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It sounds like you have shorted something out and a fuse has blown.
Try checking the fuses on the positive side of the battery terminal. Also check other fuses related to the engine.
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Location:
Glossodia,NSW
Registered:
May 2002
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Re: Car won't start
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Sun, 13 October 2002 20:46
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There is no way i have fried the ecu,it was not plugged in when i was doing the wiring,it was sitting on top of the washing machine.I've also changed the 2 breakers i know of,there is 1 in the drivers side kickpanel and 1 in the passenger side kickpanel,if there are anymore please let me know and i've checked all fuses and none are gone.Hope this brings out some more suggestions.
Cheers Adrian
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I supported Toymods
Location:
Northern Beaches
Registered:
May 2002
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Re: Car won't start
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Sun, 13 October 2002 21:28
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Dunno if this will help but I had a similar problem when I put my 4age into the sprinter. It was an aftermarket microtech and it worked for a few starts then stoped, then actually worked again the next day for a go or two then stuffed up again. It would kick over like u said but just wouldn't fire.
It turned out to be a bad earth, which blew some sort of fuel relay in the ecu. Cost $80 from microtech to get fixed.
Another thing is are you getting spark?
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Location:
Victoria
Registered:
September 2002
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Re: Car won't start
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Mon, 14 October 2002 01:17
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That click could've been a fuse or a relay.
What sort of alarm do you have in your car...
If it runs for a few seconds then shuts off, sounds like my car when the engine immobiliser is activated.
May have set the immobiliser off when you touched the wires together (alarm detected as tampering?).
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Location:
Glossodia,NSW
Registered:
May 2002
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Re: Car won't start
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Mon, 14 October 2002 06:59
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I don't have an alarm or imobiliser on my car and i've checked the earth wires as well.I've definately figured out that it is fuel related.The fuel pump is working but it may not be supplying the right pressure so i'm going to check that tonite.There may be enough fuel in the rail when i turn the ignition on cauz i can hear the pump running and then it stops when the rail gets full.So when i crank it over it fires up but the pump can't supply the right pressure so the car stops cauz there isn't enough fuel going to the injectors.
Do you think this sounds logical??? If this turns out to be the problem i'm going to kick myself
Cheers Adrian
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Location:
Adelaide, SA
Registered:
September 2002
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Re: Car won't start
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Mon, 14 October 2002 08:44
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Does your car have a battery?
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