No or low spark #4 and #7 plugs

[secondchance]

Originally Posted by DTZ ZR1

I will be changing out the injectors, I believe that they are stock. It does not look like anyone had the plenum off. The factory plug wires are still on. I figured on changing the packs and wires too and anything else that might be bad.

Jerry's gaskets come in two different thickness, Which would be better?

I am trying to clear my schedule so I can start on it this weekend. I do not think I could wait three weeks to drive her again.

It may be wise to have a couple of vacuum check valves and also make note of which hole plenum bolts was removed from and clean the bolt threads before reinstalling them. It's pretty easy to strip the threads in the injector housing.

I replaced all 16 injectors 3 months ago and the result was astounding!