bad ECU?
#3
I have had my share of fried ECU's... The Ignition circut likes to fry on the FC3S ECU's.
Have you done a compresstion check on the engine while it was hot...??? I have had engines that had low compresstion that would start no problem when there cold, But no dice once it would warm up...
Have you done a compresstion check on the engine while it was hot...??? I have had engines that had low compresstion that would start no problem when there cold, But no dice once it would warm up...
#5
Well.. I had a 12A that started right up idled great, But once you shut it off It would not fire back up unless you waited about 20 min OR if you could get it rolling fast it would "push start". And it's problem is that it had low commpresstion.
On the first plug that goes to the ECU ther is a Green/Yellow wire. That is the signal wire to the leading coil pack.
On the theird plug that goes to the ECU there are four wires LightGreen, lightGreen/Red, light Green/Black, LightGreen/white. Thoes are the injector signal wires.
All those wire are negatives. So to test them take a test light. clip one end to a 12V+ power source, Then stick the probe into one of the wires when you turn the motor over you should see short faint blinks from the test light.. If not the ECU may be fried...
Good luck!!
On the first plug that goes to the ECU ther is a Green/Yellow wire. That is the signal wire to the leading coil pack.
On the theird plug that goes to the ECU there are four wires LightGreen, lightGreen/Red, light Green/Black, LightGreen/white. Thoes are the injector signal wires.
All those wire are negatives. So to test them take a test light. clip one end to a 12V+ power source, Then stick the probe into one of the wires when you turn the motor over you should see short faint blinks from the test light.. If not the ECU may be fried...
Good luck!!
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