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ECU got wet while driving, spark but no fuel

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Old 03-23-2010, 04:42 AM
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Default ECU got wet while driving, spark but no fuel

About 6 months ago, I creamed a Deer on the passender front fender of my EG6. I replaced all body parts and hammered the apron back into place. However, while driving down 95 in the pouring rain, my car shut off. I began doing my checks. Jumped the ECU for Codes and all I got was the Solid CEL. Checked the ECU and it was soaking wet. Appears I have a crack somewhere in my firewall or floor board perhaps.

Anyways, its a P30 ECU with Hondata S-300. I let it dry for a day and tried to start it. I got spark but no Fuel. Fuel Pump is not priming either. I did not have the time to check fuses yet. I plan on spending all day Thursday working on it.

I'll be replacing any blown fuses and my Main Relay, but is there any chance my ECU could be dead?
Old 03-23-2010, 07:06 AM
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Default Re: ECU got wet while driving, spark but no fuel

Usually a solid cel light indicates a dead ecu. Besides the main relay the ecu controls fuel and that is probably why you are getting no fule.
Old 03-23-2010, 08:13 AM
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Default Re: ECU got wet while driving, spark but no fuel

Would the water kill my ECU like that? Could it just be that the fuse under the hood is dead?
Old 03-23-2010, 08:16 AM
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Default Re: ECU got wet while driving, spark but no fuel

Originally Posted by EdSales
Would the water kill my ECU like that?
YES!!! water and circuit boards do NOT mix!!! This should not surprise you, especially if it was soaking wet!
Old 03-23-2010, 08:24 AM
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Default Re: ECU got wet while driving, spark but no fuel

Originally Posted by Deetz
YES!!! water and circuit boards do NOT mix!!! This should not surprise you, especially if it was soaking wet!
You think the Hondata would have survivied?
Old 03-23-2010, 08:56 AM
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Default Re: ECU got wet while driving, spark but no fuel

Or is there a way to check if the Hondata is good? The RED Light lites up on it.
Old 03-23-2010, 09:13 AM
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Default Re: ECU got wet while driving, spark but no fuel

im gonna say u fried the ecu..and if the hondata was beside the ecu and was wet then it prolly fried the blue box as well..but you might get lucky and beable to save the box and just replace the ecu
Old 03-23-2010, 09:41 AM
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Default Re: ECU got wet while driving, spark but no fuel

Originally Posted by 95BoostedEJ1
im gonna say u fried the ecu..and if the hondata was beside the ecu and was wet then it prolly fried the blue box as well..but you might get lucky and beable to save the box and just replace the ecu
S200 is in the Blue Box, I got the S300J which is chipped inside the ECU. Is there any way I can test the Chip to check if its still good? The Red Lite still lites up on it.
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