Hi guys,
I have an 84 Crown (europe spec, so no EGR, no O2 sensor, no cat) with a very weird electrical issue:
It started with a weak starter motor, it turned the engine very slow and especially when it was cold it took up to 10 times starting until it fired up. I thought it might have been a weak battery so I put in a new one (90Amps instead of the original 60Amps, fits perfect to the original dimensions).
Then one day the whole electrical system went weak(lights very dim, getting better when I turned off the vent) and I just managed to drive it to my brothers house then it stopped working.
I left it there and tried to start it the next day. The starter just clicked like when the battery is low. I checked with the multimeter and the voltage was 12.2V so it couldn´t be the battery.
We tow-started it and it ran fine... after driving it to my garage I tried starting it and it worked again fine.
But I found out the main wire between battery and fusebox was halfway broken and the main fuse holder(60A and 30A - thats where the Celica supra has the fusible links) was fried.
So I decided to replace a few things:
All wires to the Battery - Starter and alternator with at least double the size wires. Main fuses and fuseholder.
Starter motor, cold start injector, distributor cap, ignition wires, alternator (the Camry 80Ah unit), spark plugs
some other unrelated stuff - Thermostate, fan clutch, all belts
All the stuff I changed are good brands - Aisin and Denso
Now I have new issues:
The starter turns fine and really fast (same as on my celica supra - not "something is broken" fast) but when I turn it more than 1-2 seconds or when I stop starting it sometimes makes a loud clonking noise and starts smelling fried - I checked all the wires and it seems to be fine
I get no spark - I checked all the fuses, they are ok, I get current on the ignition coil. I changed the ignition coil with a replacement, ECU seems to work (when I turn on ignition and move the afm flap I can hear something move at the throttle body - I think it tries to compensate the idle?)
I don´t have a wiring diagram for the crown but I tried to check it with the celica supra one - they are a bit different but understandable
Any thoughts on those issues? Did I do something wrong maybe or was the initial issue something different that I havent checked yet?
I have an 84 Crown (europe spec, so no EGR, no O2 sensor, no cat) with a very weird electrical issue:
It started with a weak starter motor, it turned the engine very slow and especially when it was cold it took up to 10 times starting until it fired up. I thought it might have been a weak battery so I put in a new one (90Amps instead of the original 60Amps, fits perfect to the original dimensions).
Then one day the whole electrical system went weak(lights very dim, getting better when I turned off the vent) and I just managed to drive it to my brothers house then it stopped working.
I left it there and tried to start it the next day. The starter just clicked like when the battery is low. I checked with the multimeter and the voltage was 12.2V so it couldn´t be the battery.
We tow-started it and it ran fine... after driving it to my garage I tried starting it and it worked again fine.
But I found out the main wire between battery and fusebox was halfway broken and the main fuse holder(60A and 30A - thats where the Celica supra has the fusible links) was fried.
So I decided to replace a few things:
All wires to the Battery - Starter and alternator with at least double the size wires. Main fuses and fuseholder.
Starter motor, cold start injector, distributor cap, ignition wires, alternator (the Camry 80Ah unit), spark plugs
some other unrelated stuff - Thermostate, fan clutch, all belts
All the stuff I changed are good brands - Aisin and Denso
Now I have new issues:
The starter turns fine and really fast (same as on my celica supra - not "something is broken" fast) but when I turn it more than 1-2 seconds or when I stop starting it sometimes makes a loud clonking noise and starts smelling fried - I checked all the wires and it seems to be fine
I get no spark - I checked all the fuses, they are ok, I get current on the ignition coil. I changed the ignition coil with a replacement, ECU seems to work (when I turn on ignition and move the afm flap I can hear something move at the throttle body - I think it tries to compensate the idle?)
I don´t have a wiring diagram for the crown but I tried to check it with the celica supra one - they are a bit different but understandable
Any thoughts on those issues? Did I do something wrong maybe or was the initial issue something different that I havent checked yet?