PJ0 (pre-OBD?) to OBD1 conversion

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Sabz5150

Sabz5150

FALCON PUNCH!!!
I'm trying to make this magic work, but haven't been able to find any helpful information to move me along on it. I've got a few qn's that hopefully you guys/girls can help me out with...

Will I need to bypass the injector resistor box, swap in a Teg's or can I work with what I have?

Pinouts, pinouts, pinouts... does anyone have a diagram of how to build an obd0 to obd1 harness? That would be the biggest help, but I can't find one anywhere :(

What's the best ECU to use for this? The engine is a BT/A20A3 EFI 12V SOHC.

Any help would be appreciated B)
 
actually, No.

You didn't read his post. he has a vacuum advance A20A3 motor. The harness you linked to is for electronic advance cars.

You're going to need a Helms for your car if you don't already have one.
Sonny Van Hook and TJ both have excellent writeups of converting a vacuum advance 1G CRX to electronic advance / "OBD0". From there, you need to use your noggin if you want to convert to OBD1. I'd recommend using PhiZ's OBD0-OBD1 conversion strategy, which he was kind enough to document in the Harnesses and Conversions forum at PGMFI.org.

Good fucking luck. This is a hard conversion. I'm converting my 87Si to OBD1 this winter, and I expect to kill the car before it's done. :)
 
Thanks :)

It's been done, the brother of a member on our board pulled it off. Said he used an F22 dizzy and an ECU conversion harness. He hasn't given any other info than that. Here's a pic of the dizzy mated to the A20. (sorry it's so huge)

distributor.jpg


I'm gonna keep searching for the harness pinouts and see what I can get going. If I get somewhere, I'll definitely share my info :)
 
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