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Old 12-15-2004, 03:08 AM   #1
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The check engine light inst coming on when you turn the key to on. and the ecu does not blink to show that it is working? I replaced the main relay and tested the distributor and they are both fine. What am I missing. Why wont this ecu turn on? I have tried another of my ecus and it wont turn on eithier.
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Old 12-15-2004, 04:44 AM   #2
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im asuming you check than main battery fuse and others
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Old 12-15-2004, 12:25 PM   #3
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Quote:
Originally posted by pheonixb16aguy+Dec 15 2004, 04:43 AM--><div class='quotetop'>QUOTE(pheonixb16ag uy @ Dec 15 2004, 04:43 AM)</div><div class='quotemain'><!--QuoteBegin-Jdubspeeds@Dec 15 2004, 03:08 AM
The check engine light inst coming on when you turn the key to on.* and the ecu does not blink to show that it is working?* I replaced the main relay and tested the distributor and they are both fine.* What am I missing.* Why wont this ecu turn on? I have tried another of my ecus and it wont turn on eithier.
where the ecu grounds out on the thermostat bolt... is that hooked up ??
is ur battery fried ?? <_<
[/b][/quote]


I looked and didnt see any grounds near that the thermostat
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Old 12-15-2004, 12:25 PM   #4
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Quote:
Originally posted by hcivic.com@Dec 15 2004, 04:44 AM
im asuming you check than main battery fuse and others
yeah i checked the fuses
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Old 12-15-2004, 01:56 PM   #5
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check the bulb on the back of the cluster. check to see if its there first. if its there, then try another bulb.
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Old 12-15-2004, 03:32 PM   #6
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I think he meant his ECU isn't working. Not the bulb.

Maybe use a multimeter to see if your getting any voltage to the ECU?
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Old 12-16-2004, 10:56 PM   #7
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Quote:
Originally posted by Jdubspeeds+Dec 15 2004, 11:25 AM--><div class='quotetop'>QUOTE(Jdubspeeds @ Dec 15 2004, 11:25 AM)</div><div class='quotemain'>
Quote:
Originally posted by pheonixb16aguy@Dec 15 2004, 04:43 AM
<!--QuoteBegin-Jdubspeeds
Quote:
@Dec 15 2004, 03:08 AM
The check engine light inst coming on when you turn the key to on.* and the ecu does not blink to show that it is working?* I replaced the main relay and tested the distributor and they are both fine.* What am I missing.* Why wont this ecu turn on? I have tried another of my ecus and it wont turn on eithier.

where the ecu grounds out on the thermostat bolt... is that hooked up ??
is ur battery fried ?? <_<

I looked and didnt see any grounds near that the thermostat
[/b][/quote]

The grounds at the engine and the strap from the engine to the chassis is very important. I would look in this direction. Power to the unit is not important if you don't have a ground path.
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