Injector connector
 

I had a bad miss and traced it to a loose injector connector. The connector would back off the injector a little bit and not make a good connection. I was perplexed.

I gently peeled back the rubber boot and noticed a dab of epoxy holding the wire to the connector shell. I think without the epoxy the metal connector can back out of the shell just enough to loose contact with the injector.

Has anyone else seen this?

It's likely the tabs that hold the metal connector into the housing have broken off. Also likely someone tried to remove the connector pins in the past and didn't use the correct tool thereby breaking those tabs. That po, instead of crimping new pins, decided to use a dab of epoxy to keep those pins from coming out.

http://forums.pelicanparts.com/uploa...1498836655.jpg

The metal connector doesn't pull all the way out like the tab is still there. I pulls back just an eight of an inch or so, enough to loose contact and cause a miss.

Could it be that the plastic where the tabs catch have worn? Those tabs are sharp and years of vibration might have eroded the plastic. I'm guessing here :confused:

If it were mine I'd take it as a sign that the connectors and pins should be taken apart, examined and probably replaced.

A worn connector shell sounds like a plausible explanation. This is an 85.5 car and on two of the four connectors I can pull back on the wire and feel it loose contact and start to miss.

So the first thing I am going to do is replace the connector shells. The wiring looked good on the two I inspected and I cant imagine there is anything wrong with the metal terminals.

The wire 'keeper" clips are installed correctly?