OBD question

[Dracos95Z]

I have a 95z24 cavalier which is a 2.3lo. I have been told by several places that I had a OBDII (because I have the same plug and such) but my question is that, if my car is set up for a 2.3lo with a OBDII would I still be able to swap a 2.3HO in there without needing to get a OBDI?

Thanks in advanced for the help.

[gOoIe B]

Originally posted by Dracos95Z
I have a 95z24 cavalier which is a 2.3lo. I have been told by several places that I had a OBDII (because I have the same plug and such) but my question is that, if my car is set up for a 2.3lo with a OBDII would I still be able to swap a 2.3HO in there without needing to get a OBDI?

Thanks in advanced for the help.

i don't think that is the case. '95 2.3s were a transition year to make a gradual change over to the 2.4s, which are all obdII. early quads and quad H.O.s were all obdI, and need obdI electronics.

[Fish]

I think '94 and '95 were both kind of OBD1.5 transition years. Can't get codes off the '94 w/ paperclip the way you can with true OBDI cars...

[Fbod383]

It depends. is yours an Auto? If so you will have to swap ECMs. GM Used SEFI on the 95 2.3 Auto J-bodys. Which uses a cam sensor and no PROM chip. If its a stick then slap that puppy in there and get a custom chip from manta.

[Dracos95Z]

Yes my Cav is an auto, how hard would it be to swap ECM? If you know.

Thanks for all the help so far

[wu_sword]

IF I was you, I would consider selling your engine/tranny and then buying what you want. This way you don't run into countless problems trying to mix and match