Car went to tuner today and have a misfire on cylinder 3, but its random. I'm using I'D 1000's with pnp clips. The misfire goes away when you touch or wiggle the wire on cylinder 3 injector. Can the clip be bad or maybe the injector? Using Haltech btw

 

The pnp clips are garbage. Some have no issues, but there have been countless problems with them not making good connection. Hard wire them to the factory wires.

I just installed them on an ap1 and the car wouldn't even start, non of the clips were making contact.


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That's what I was afraid of when I bought them. But, the connection problem for us was at the injector itself. We were able to move it around and get it to make a good connection for now. But, I ordered another clip to replace that one and if I still have an issue, I'm going to hard wire them this weekend. If that doesn't work, it has to be the plug on the injector and I'll have to replace that. We decided not to push for more power until the issue is resolved so the tune is super conservative and boost is at just under 10psi.