OBD 2 ECU swap now wont start

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Mar 12, 2005 | 10:19 AM

skimb37

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Joined: Sep 2002

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From: Cayucos, CA, usa

OBD 2 ECU swap now wont start

i have a 97 lude base 5spd and the ECU got wet, it still runs the car but misses sometimes so i bought a new ECU and i hooked it up and my car wont start. it was from a 97 base 5spd any help?

Mar 12, 2005 | 10:23 AM

A Blue Lude

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Joined: Nov 2004

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Re: OBD 2 ECU swap now wont start (skimb37)

5th gen ECUs have an immobilizer...if you're using your old key, it's not going to start the new ECU.

Mar 12, 2005 | 10:25 AM

skimb37

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Joined: Sep 2002

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From: Cayucos, CA, usa

Re: OBD 2 ECU swap now wont start (Featherfire)

can i bypass that or do i need the key to the other guys car with his ignition?

Mar 12, 2005 | 11:23 AM

bad-monkey

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From: Off THE 60, Between THE 605 and THE 57

Re: OBD 2 ECU swap now wont start (skimb37)

1) put your old ECU back in.
2) go to the honda dealer with your master (red) key and new ecu.
3) ask them to reprogram immobilizer for new ECU. should cost 75 bucks or so.
4) suggest that you swap ECU's in their parking lot to save yourself the money because they need the new ECU connected to the car to reprogram the immob.