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View Full Version : Obd2 to obd1 wiring adaptor..worth buying?



BuiEG
26-05-2011, 11:55 AM
Hey guys I'm just about to to a b18c2 conversion on my eg5...I've read some engine swap guides but none are really specific about wiring..I've got complete kit include harness ecu and engine itself all off a 96. Vtir integra..
Now I always thought it was plug in and start her up but that's not the case I'm guessing...on eBay America there are conversion plugs I can buy but I'm confused as to which one I specifically need...there so many!

Any way just want to know what you guys think or have you used these conversion plugs before...if so and if I use them will it just be plug and play or do I still need to chop and tap bits and pieces?

VTec1987
26-05-2011, 12:07 PM
If you have an EG wanting to use a obd2a ecu.

Then you would need obd1 to obd2a conversion harness

Obd1 car -----> using obd2a ecu.

BuiEG
26-05-2011, 12:11 PM
Ok sweet...if i use it..then I wouldn't need to chop and change anything yeh? I'd just need to plug in everything from engine bay to my ecu and car would be sweet to start?

VTec1987
26-05-2011, 03:20 PM
Once you get the conversion harness, it will be plug and play

Car will start, but you would need to wire up a few sensor for it to work properly on your eg

Iab
4 wire sensor
Knock Sensor

Another alternative is to get a p72 obd1 ecu, so then it will be plug and play on your EG + the extra sensor above.

Up to you, you have choice of buying a conversion harness or an obd1 p72 ecu

thaizeg
26-05-2011, 06:09 PM
With the obd2a ecu as well u will need to get the factory immoboliser removed if it hasnt been done already