I could be driving and when I come to a traffic light, stop sign, or going from reverse to drive vehicle just shuts off. I've noticed my rpm's have been kinda low all out of no where. Talked to my buddy he thinks somthing with the throttle body. Any ideas it's a 89 renix

 

I pulled the iac and it's clean didn't have to clean it or nothing

 

Sounds like a vacuum leak to me. Normal Idle for a renix 4.0 is 750-850 rpms I think. (guessing thats what you have since you didn't feel us in on the specs of the vehicle)


I would start there and then look at crusiers tips for refreshing all of your grounds.

 

I just serviced all my ground on the vehicle with 4 gauge wire. and yes its a renix model.

 

what about the c101 connection and adding the grounds that crusier54 recommends.

 

C101 connector?

 

This is what it reads. Pulled the iac clean as hell even in the throttle body. Changed my throttle body to a ported one a few months back. I don't know how old the iac is and this all just started happening might be worth it to just replace it and see what happends no? What controls the iac?

 

This issue keeps happening. I smoke tested the car and have a slight leak from Cly2 injector o ring. I iac I resolve because the original one was still in. Thinking o2 sensor is next. Will the 02 set a light on the dash? I'm running out of options here. I also have a leaky head gasket and thinking that it's also that? I tryed brake cleaning the mess with the engine running and herd it suck the brake clean so that makes me thing the leak is kinda bad.

 

No lights for O2 sensor.

To answer your other question about C101:

http://cruiser54.com/?p=24

http://cruiser54.com/?p=140

Why not replace the injectors with these:

http://cruiser54.com/?p=438

 

mine is a 89 and i have injector upgrade already. should i clean the connector first?

 

Try it. Get new injector seals in it also.

 

I'm gonna try today. My wife and I r expecting a baby any min so garage time at the moment is limited. After I clean the plug should I add some dielectric grease or leave it?

 

No dielectric.

 

So I cleaned as much tar and crud out of that connector and jeep still drops idle. I'm gonna change the 02 sensor because it looks original from 1989 lol and if that doesn't work guess I'll swap the oring on cyl 2 injector that had a slight leak with the smoke machine I saw and if it's the same I'm going to go with my head gasket because it's leaking pretty good.