chefsal

Hey Guys,

I am the second owner of a 90 ZR-1. I bought it two years ago with 12k. I now has 23k. Recently I ve noticed some skipping and hesitation when I lean on it. Its especially true when in full power and not has noticeable in regular power. There are no vacuum leaks and the plugs/wires are original. Can I Assume its the injectors at this point? If so is the only fix is to replace them? Has anyone tried techron or similar products? And if I need to change what else so I change while I'm at it?

Thanks Guys!

jay1055

If they have never been changed it is time cleaners will probably not help?

Z51JEFF

If they are original they will need to be replaced. Get the plenum gaskets and O rings while you're at it.

Hib Halverson

If the plugs and wires are original, I'd try changing plugs, first.