Alternate harness verified

[mojo]

I've been having problems getting my OBDII car working with a new supercharger install. I finally went to replace the ECU extension harness with a different one, and found that they're not easy to find. Someone mentioned that the EVO VII/VIII ones are a direct replacement.

I overnighted one from Z-1 Performance and found that it worked exactly as hoped- a direct drop in. All 92 pins are present and accounted for as well.

As a side note, it seems that the OBDII cars require all of these pins, unlike some harnesses for pre-OBDII cars. If you try to use the harnesses missing pins in an OBDII car, the engine will start (sometimes), but you'll get a check engine light immediately.

Be sure that if you get a harness for your supercharger, et al, install that you get one that works with your car...

 

[Option2]

I'm glad that worked out for you. I was the one that said the NSX and EVO VIII share the same harness. Do you have dyno sheets with your supercharger installed?

 

[sjs]

FYI, I think one of our forum supporters, Science Of Speed, carries them as well.

 

[mojo]

I'm glad that worked out for you. I was the one that said the NSX and EVO VIII share the same harness. Do you have dyno sheets with your supercharger installed?

I had forgotten who said it - thanks, Option2. I am doing a write-up of my installation through tuning, complete with dyno sheet. Stay tuned (no pun intended!)