OBD 1 or OBD 2?

[CCO]

I've tried scanning my C4 with an OBD 2 scanner with no success. Is the '94 C4 an OBD 1?

Thanks
Colin.

 

[Keith Tedford]

1994 and 1995 C4s have the OBD-I system but used a 16 pin access connector unlike previous years. This would become standard for the OBD-II system used on 1996 and up.

 

[CaledoniaBrian]

1994 and 1995 C4s have the OBD-I system but used a 16 pin access connector unlike previous years. This would become standard for the OBD-II system used on 1996 and up.

Keith has it dead on Collin. Your C4 is a 16 pin OBD1 system.

 

[Ranman]

Hey Colin, Brian's paper clip trick is so easy to do. If I can do it anyone can
it only takes 2 minutes and you have your code.

 

[FordPrefect]

I didn't know you were a Star Wars fan

 

[Ranman]

May the force be with you young Skywalker!!

Keep in mind , even though I now know how to get the codes I am still trying to figure out how to resolve them...it is a work in progress but I am enjoying it!

 

[CCO]

Hey Colin, Brian's paper clip trick is so easy to do. If I can do it anyone can
it only takes 2 minutes and you have your code.

I missed the class on the paperclip trick.....What gives? BTW -- no codes. Just preplanning in case I get one.

and thanks for the responses everyone.

Colin.

 

[Ranman]

Pretty simple, if and when your "service engine soon" light comes on in the car, take a paperclip, form it into the shape of a U and Jump the connectors.
below is a link Brian sent me that depending on the year, it tells you what 2 inlets to jump and how to read the codes.

C4 Corvette Diagnostic Code Recovery Techniques

If the light comes on and you get stuck let me know.

 

[Crusher]

You have ODB1 Colin.... My Autoxray scanner reads both ODB1 and II

Paper clip trick will do. Thats what I used to do back in the day for my 88 IROC before I bought the Auto Xray in the mid 90`s

 

[CCO]

Pretty simple, if and when your "service engine soon" light comes on in the car, take a paperclip, form it into the shape of a U and Jump the connectors.
below is a link Brian sent me that depending on the year, it tells you what 2 inlets to jump and how to read the codes.

C4 Corvette Diagnostic Code Recovery Techniques

If the light comes on and you get stuck let me know.

Thanks Ranman -- I"ve bookmarked the sight for future use. It does seem easy to recover codes.

C.

 

[CCO]

You have ODB1 Colin.... My Autoxray scanner reads both ODB1 and II

Paper clip trick will do. Thats what I used to do back in the day for my 88 IROC before I bought the Auto Xray in the mid 90`s

Thanks Peter -- The paper clip method seems easy enough.
I did have an OBD 1 scanner that I sold some years ago since I thought I'd not need it any more. It would have been handy for resetting codes if needed.

I'll look around for another one. There are bound to be some second hand ones out there.

Colin.