Recent content by LedSled

This weekend we ran several tests but got nowhere First we ran fuel pressure test and got a steady reading from idle to wot of 53psi Next did a spark test on the coil pack and had good spark at the number one plug. Next we ran compressions test and got these values. #1. 155 #2. 166 #3. 159 #4...

Not sure what you mean by “integrity” but I checked wires for continuity and resistance between pcm plug and injector plug. All had continuity and less than 0.5 ohms resistance. Not sure if that’s what you meant. And yes I said I checked that in the previous reply. I check positive side of...

I checked wires for chafing on the harness from pcm to injector plugs all was good except for the number 2 injector plug had some chaffing near the plug. I don’t think that would cause a cylinder one miss and I plan on fixing that after I resolve the current issue. I checked positive side of...

Ok so here’s what I’ve checked so far. Wiring is good from pcm to injectors. Did notice a chafed spot on the pigtail connector on the number two injector but it’s not causing an issue. I will replace it after I fix the current issue. Clean IAC and replaced TPS sensor. I noticed an improvement in...

Was one of the first things I checked. Harness looks fine. No chafing

It also seems to idle lower. Around 600 rpm. Any suggestions

Alright so I went and bought a noid light set to confirm what I thought was the issue but noid light is blinking as it should be so now I’m back to square one

Okay so here’s what I found out I checked the resistance of every injector plug wire and got roughly 5.66 ohms on every one except the cylinder 1 plug. So I think that’s my issue. Would replacing the plug work? Or am I looking at a whole wiring harness.

Plugs are champion copper

Another thing I forgot about was that the number one injector plug was almost impossible to get off while all the others easily pulled off. In fact I broke the clip trying to get it off. Not sure if that has any relation.

The coil came from autozone.

Also was going to test my CPS according to another post I saw on this forum and noticed my plug is in a completely different place than others

I’ve been having problems with a miss that comes and goes here’s what’s going on. It’s a 2001 4.0l with 226k miles. Everything stock engine wise except for k suspension 4 hole injectors and heat shielding. All injectors are wrapped. Jeep was running good accelerated hard a few weeks ago and...