"BLEM" Module, Ignition Control, for 90~95 ZR-1 LT5. One (1) Ignition Control Module is required per engine.

About the Blemish;
The 3 pin connector at the rear of the module, latches to the harness connector by means of a small, raised tab.  The tab on this module has broken off.  The remains are visible but just not tall enough to latch onto the harness connector. 

Are you the McGyver guy? Then this is an easy fix for you.  Just make a small tab, epoxy it onto the module and save yourself $318.51 off the cost of an "un-blemished" module. 

All of the following pertains to this same Module.

NOTE: The first 500 1990 models (see last 4 digits of the VIN) used DIS Module PN 1103747 in conjunction with a "spacer" under the Crankshaft Position Sensor.  When using DIS Module PN 1103841, the "spacer" must be removed for proper operation.  DIS Module PN 1103747 is obsolete.

NOTE: This is a NEW, GM OEM part. When our inventory of this part is exhausted, it is extremely unlikely that we will ever be able to offer this item again. 

 MUST READ, TERMS OF PURCHASE: All sales are final. Please do not purchase this part to "test" your problem diagnosis. We cannot accept returns for any reason.  We regret the necessity of this requirement, which is due entirely to part rarity and demand plus the fact that it is an electronic component which can be damaged by improper handling.