msd opti spark plug problems

Reply Subscribe

Thread Tools

Search this Thread

Mar 11, 2008 | 10:52 PM

TRACKMAN2

Thread Starter

Burning Brakes

Joined: Feb 2006

Posts: 1,177

Likes: 0

From: VALENCIA PA

msd opti spark plug problems

just got the msd opti today and the plug for the wires is wrong the pictures in the directions show the right plug on the removal steps but does not have the same plug on the new opti... my 92 does not thave the fresh air hoses on the opti,, the guy from sumit sayes there are only two part #'s one with pin drive one with spline drive but the 4 pin conector isn even close???????

Mar 12, 2008 | 01:55 AM

TOO_HOTTVETTE

Burning Brakes

Joined: Sep 2003

Posts: 1,214

Likes: 0

From: Miami FL

The plugs are also different on the later optis

Mar 12, 2008 | 03:05 AM

Eddie & the Cruisers

Burning Brakes

Joined: Apr 2006

Posts: 765

Likes: 0

From: Houston Texas

Quote:

Originally Posted by TRACKMAN2

The plug on my '94 matched the new MSD plug exactly but a friend has a '92 and his plug was different than the one on the MSD unit. He went to a junk yard and found one and spliced it into his wiring harness under the fuel rail. I don't remember what car it came off of though it not a Corvette.
Be careful if you look for one because there are two that look alike but the key in them are opposite and will not work.
The reason the connector is different (a 5 pin) is because the 5th pin is a ground wire that connects to the pigtail harness shielding going to the distributor that you don't need anymore.

Last edited by Eddie & the Cruisers; Mar 12, 2008 at 03:09 AM.

Mar 12, 2008 | 07:31 AM

TRACKMAN2

Thread Starter

Burning Brakes

Joined: Feb 2006

Posts: 1,177

Likes: 0

From: VALENCIA PA

ill look into that thanks "yins rock"

Reply Subscribe