There is a good chance that it is. The problem spilled over to 93 and 96 models.

You can check your own vehicle by removing some of the loom from the wire bundles under the hood and look for disintegrating insulation. It should present itself rather readily. It's either horribly bad or it isn't. In your case, the immediate concern is the throttle body wiring bundle.

This problem gets worse the more you poke around under the hood. The insulation flakes off like glass under the slightest movement.