how to check obd1 ecu codes?
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Honda-Tech Member
Joined: May 2009
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how to check obd1 ecu codes?
i just swapped my car to obd 1 but it wont start and i cant check the codes, ive heard something about grounding a certain wire but cant find which one can someone help?
Honda-Tech Member
Joined: Feb 2006
Posts: 346
Likes: 1
From: Eastside, WA, United States
Re: how to check obd1 ecu codes?
d4 is the service connector. ground that, or wire it to b20 and jump your timing adjust plug its blue and the wires are blk a nd brwn should be by the left side of your glove box
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