How can you tell if an ECU is bad??
#3
clutch slipping boost
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Location: Minneapolis MN, Golden CO
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well, what do you mean by not run? like it wont start? check engine light on? runs bad?
I am just curious as to what experiences others have had with Bad ecu's... what they have done. I highly doubt a bad ECU is fixable, is it?
I am just curious as to what experiences others have had with Bad ecu's... what they have done. I highly doubt a bad ECU is fixable, is it?
#4
not OG but Old School
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no it's not really fixable the car may or may not start, and depending on what is bad with the ecu it may just run really shitty. Not sure about the CEL.
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I'm made of meat!
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Heheh... code 0. You're right, too. Can you describe how to count the blinks for that one?
If you have a bad ECU, then when you turn the key to the ON position without starting the engine, the CEL doesn't light up for 5 seconds like it normally does, and is supposed to. That light is an indicator that it's going through a test routine. No light=failed test routine.
Some ECUs can be fixed. It depends on what's wrong with them. On DSMs, 90-92 turbo ECU's suffer from a few weak capacitors, which can be replace, and the ECU will work fine afterwards.
If you have a bad ECU, then when you turn the key to the ON position without starting the engine, the CEL doesn't light up for 5 seconds like it normally does, and is supposed to. That light is an indicator that it's going through a test routine. No light=failed test routine.
Some ECUs can be fixed. It depends on what's wrong with them. On DSMs, 90-92 turbo ECU's suffer from a few weak capacitors, which can be replace, and the ECU will work fine afterwards.