1991 ZR1 ODB1 Port Location

[roadczar]

I guess I will be ordering the fuel pressure tester, already have ODB1 module on order.

[Z51JEFF]

While you have the plenum off take a look at the secondary solenoid,a replacement can be made to work from a different G.M. application not sure exactly what at the moment.Another thing you might want to do is before you bolt the plenum back up get out Marc Haibecks DVD on an under plenum systems check.It will show you how to power up the system and check all the secondary hardware in operation.

[roadczar]

Fuel pressure was OK, ordered injectors....

[roadczar]

Originally Posted by Schrade

Welcome onto the boards there.

If reading codes is the only objective, you can get it done with a paper clip (once you find the ALDL interface).

But scan software IS something good to have...

Cliff [Dynomite] will post a link for eBay cable listings, for laptop-to-ALDL connector.

I use this one from Moates...

I just received my Moates cable and module. What software are you using?

[roadczar]

I just finished installing the new injectors. That was what was causing the problem. Thanks again for all your replies.