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How to test the ECU?

 
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Old 11-28-2009, 01:07 AM
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How to test the ECU?

New to the forums... Working on a buddy's 5th gen.

His floor board is getting wet, could have possibly blown his ECU.

The engine is rolling, but not starting.

Also, his fan fuse was blown (unsure if it shares a fuse with anything else)

He didn't have a fuse in block 19 "ECU" or in ACG-S.

His battery is charged, and we tested my red top too... But then again it's rolling over just fine. I think it's the ECU.
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Old 11-28-2009, 02:37 PM
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Re: How to test the ECU?

well if this helps this is reseting the ECU

take out the the negative side of the battery

pump the break all the way at least 2-3 times till the breaks get stiff

just wait then put back the negative part in the batter and start it up again.

if that doesnt work, then you probably need a jump.

hope this helps buddy.
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Old 11-30-2009, 03:57 PM
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Re: How to test the ECU?

Fixing to head over to my buddy's house. I unplugged the (-) batt term. last night, pumped the brakes tight. And left it alone. I'll plug it back up tonight.

Would fuel pump and starter be the other 2 things to test?
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Old 12-01-2009, 03:36 AM
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Re: How to test the ECU?

i dont see why not. do it.
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Old 12-01-2009, 06:35 PM
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Re: How to test the ECU?

Quote:
Originally Posted by xXpatisXx View Post
well if this helps this is reseting the ECU

take out the the negative side of the battery

pump the break all the way at least 2-3 times till the breaks get stiff

just wait then put back the negative part in the batter and start it up again.

if that doesnt work, then you probably need a jump.

hope this helps buddy.
We tried jumping it with my 91 civic wagovan, even though he had some battery life.
My wagon can jump start anything, it has a 200 amp alto crammed under the hood... So voltage isn't an issue.

Push starting it failed as well. The engine is turning, just not catching at all, not even a spudder.
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Old 12-03-2009, 08:55 PM
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Re: How to test the ECU?

idk man....
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