I just installed a set of new Flamethrower injectors on my 1989 3.0 Pickup. I put everything back together and now the engine shakes at low RPM and sounds like it is missing. I pulled each spark plug wire and found that number 3 and 5 makes no difference when I pull the plug.

I do get spark out of each wire, does this mean I somehow installed injector 3 and 5 wrong or they are defective? What else could it be?

The thought of pulling the Plenum again makes me want to cry a little.

 

As much as it sucks, I would pull them and switch them around with different cyls and see if the issue moves with the injectors.

 

Can I reuse the Plenum gasket? It's been on for only a few days. Also will I need to use all new crush washers for the fuel lines? New gaskets for the EGR system as well?

 

Cant guaranty it wont leak but I've done it before on my 22re.

 

I had the same problem with 1 new flamethrower injector on my 22re. Tested it and it showed no resistance. Called and had it replaced.

 

The seller has been above and beyond for my flamethrower injectors. I emailed him the issue, he asked me how many replacement injectors I need and two days latter I had them at my door! I am just waiting on a few gaskets and crush washers and I'll put everything back together.