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URGENT! 05 CIVIC WILL NOT START. ECU?

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Old 10-02-2016, 09:27 AM
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Default URGENT! 05 CIVIC WILL NOT START. ECU?

This started yesterday with the FI ECU fuse # 6 in the underhood fuse box blowing instantly when I turn the key on and the engine obviously will not start. I removed the brown relay behind the glove box and the fuse did not blow. Unplugging the top plug on the ecu would also keep the fuse from blowing. The relay is good. The fuse consistantly blows when the brown relay and computer are connected. Is this a bad ECU? Thank you. UPDATE: It was a shorted TDC sensor. I have no money for a new one, so it will just have to run without it connected. The big problem is that the ECU is now fried from the short.

Last edited by Vtec04; 10-03-2016 at 05:48 PM.
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Old 10-03-2016, 12:30 PM
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Default URGENT ECU replacement question HELP

How can I drive it with no flash after replacing the ECU? I cannot afford a flash. Also will any 04-05 auto VTEC one work? Thank you.

Last edited by Vtec04; 10-03-2016 at 06:17 PM.
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Old 10-03-2016, 04:05 PM
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Default Re: URGENT! 05 CIVIC WILL NOT START. ECU?

It won't start when changing the ECU, due to the immobilizer system not matching. It'll need to be towed.
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Old 10-03-2016, 05:40 PM
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Default Re: URGENT! 05 CIVIC WILL NOT START. ECU?

Originally Posted by toyomatt84
It won't start when changing the ECU, due to the immobilizer system not matching. It'll need to be towed.
Does the immobilizer disable the fuel pump, injectors or ignition system? I have no money to get a flash or tow. I have a part time job making $600 a month that I will lose if I can't get there. Will it run if I get power to the fuel pump? Can I disable the immobilizer? Thank you.
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Old 10-03-2016, 06:41 PM
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Default Re: URGENT! 05 CIVIC WILL NOT START. ECU?

Originally Posted by Vtec04
Does the immobilizer disable the fuel pump, injectors or ignition system? I have no money to get a flash or tow. I have a part time job making $600 a month that I will lose if I can't get there. Will it run if I get power to the fuel pump? Can I disable the immobilizer? Thank you.
It disables the ignition and fuel, if I remember correctly. And no, you cannot disable the immobilizer.

See if someone flat tow you, if you rent a uhaul car hauler.
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