1991 ZR1 ODB1 Port Location

[-=Jeff=-]

Where in Chicagoland are you located?

I sure one of us is near you to help

[PhillipsLT5]

FBI to the HP rescue, brotherhood

[scottfab]

Originally Posted by roadczar

~56,000. If I will be going through the trouble of pulling of the intake
I might as well also do the rest as suggested?

- Fuel injectors
- Coil packs
- spark plugs/wires
- Fuel pumps

Anything else? Would like to remove as much emmissions related mess as I can (really don't want to pull the heads)

If you're going to bulk replace parts might as well hit the O2 sensors.
If it were me I'd clear the codes then go for a drive until a code sets then dump the codes and find out what's wrong and go at the codes in the order the come out. The exception would be injectors if they are OEM. They need to come out as was mentioned.

[Mr Blue]

If it is running, I would not change parts just to change them. Injector failure is inevitable so change them. But I would try to ohm the plug wires, unless original appearance doesn't matter to you. Also read the threads ondiagnosing the coil packs. If you make wholesale changes, you may never identify the root cause. Change one thing at a time. Even if you change out a good part you can keep the known good parts as spares. You are in Chicago, no better place for a ZR-1. Plenty of help in that neck of the woods, and some real professionals.

Good Luck
David

[PhillipsLT5]

he may not know about injectors being new or old
he can test them
http://www.zr1specialist.com/HAT%20W...in%20Place.pdf

[roadczar]

Thanks again guys. I'm in 60091.

[Schrade]

Originally Posted by Mr Blue

If it is running, I would not change parts just to change them.
...
If you make wholesale changes, you may never identify the root cause.
...

Fully Automatic Assault Wallet repair technique never works. Buy parts, and Plug n Pray :thumbsdown:

[roadczar]

Originally Posted by Schrade

Fully Automatic Assault Wallet repair technique never works. Buy parts, and Plug n Pray :thumbsdown:

That was not the intent. As long as I was going to remove the plenum anyways I might as well replace the parts that are difficult to access and are prone to failing. I fully intend to diagnose and have already ordered the ODB1 usb cable and module.

[XfireZ51]

Originally Posted by roadczar

That was not the intent. As long as I was going to remove the plenum anyways I might as well replace the parts that are difficult to access and are prone to failing. I fully intend to diagnose and have already ordered the ODB1 usb cable and module.

This is actually what I did. Not interested in pulling plenum, then need to pull again or on a piecemeal basis.

[XfireZ51]

Originally Posted by roadczar

Thanks again guys. I'm in 60091.

There are several nearby you. Al at Brakes Plus is nearby Golf Mill. Pete is in DesPlaines and Bob banks is up in Lake Bluff.