m2carbine

I'm on the app so i can't see your signature. Do you mind posting it.

Thanks

cruiser54

Renix Jeep C101 Connector Refreshing
　
The C101 connector on 1987 and 1988 Renix Jeeps was a source of electrical resistance when the vehicles were new. So much so that the factory eliminated this connector in the 1989 and 1990 models. The factory recommended cleaning this connector to insure the proper voltage and ground signals between the ECU and the fuel injection sensors. We can only imagine how this connector has become a larger source of voltage loss and increased resistance over a period of almost 25 years. The C101 connector needs to be cleaned at least once in the lifetime of your vehicle. Chances are it’s never been done before.

Almost every critical signal between the engine sensors, injectors, ECU, and some to the TCU, travel this path through the C101 connector.
The C101 connector is located on the driver’s side firewall above and behind the brake booster. It is held together with a single bolt in it’s center. To get the connectors apart, simply remove the ¼" bolt and pull the halves apart. You will find the connector is packed with a black tar like substance which has hardened over time.
Take a pocket screwdriver or the like and scrape out all the tar crap you can. Follow up by spraying out both connector halves with brake cleaner and then swabbing out the remainder of the tar. Repeat this procedure until the tar is totally removed. This may require 3 or more repetitions. Wipe out the connectors after spraying with a soft cloth.
If you have a small pick or dental tool, tweak the female connectors on the one side so they grab the pins on the opposite side a bit tighter before bolting both halves back together.
　
Revised 03-02-2013
I suggest unplugging EVERY electrical connection in the engine bay you can find, whether engine related or not, and spraying it out with a good electronics cleaner, visually inspecting the terminals making sure they haven’t retracted into the plastic holder, and then plugging it back together. There’s a critical 10-pin connector for the front lighting system located in front of the air cleaner and behind the left headlight assembly. Don’t miss that one. Also be sure that the connectors to the ballast resistor mounted near the air cleaner housing are clean and tight.
ALL of the relays should be removed, the terminals wire-brushed until shiny, and the receptacles sprayed out with contact cleaner. Then plug them back in. I do this on every Renix Jeep I purchase or work on for someone else.
Revised 07/23/2012

m2carbine

I cleaned the C101 2 times with toothpicks and Q-tips used a whole can of Electrical cleaner a couple days ago.

cruiser54

Good. Did you tweak the receptacles?

Done the connector refreshing?

m2carbine

I did tweak them but what's refreshing part?

cruiser54

I suggest unplugging EVERY electrical connection in the engine bay you can find, whether engine related or not, and spraying it out with a good electronics cleaner, visually inspecting the terminals making sure they haven’t retracted into the plastic holder, and then plugging it back together. There’s a critical 10-pin connector for the front lighting system located in front of the air cleaner and behind the left headlight assembly. Don’t miss that one. Also be sure that the connectors to the ballast resistor mounted near the air cleaner housing are clean and tight.
ALL of the relays should be removed, the terminals wire-brushed until shiny, and the receptacles sprayed out with contact cleaner. Then plug them back in. I do this on every Renix Jeep I purchase or work on for someone else.
Revised 07/23/2012

m2carbine

Okay ill clean every connection tomorrow. Also i can't hear the fuel pump prime or do anything when the key is turned

cruiser54

That's why you're gonna clean all the relay connectors.........

m2carbine

Okay unpluged and sprayed down every connector in the engine bay and no change.

m2carbine

Bump

Parsnip

What are you not getting? Fuel pump priming? Starter kicking over? Spark?

m2carbine

I'm not hearing the fuel pump prime and I put a spark plug into the coil wire and put it on the block and had someone turn the key and no spark.

Parsnip

Starter turning the motor?

m2carbine

Yes. I got it to kinda spuder 1 time for like 3 seconds.

Parsnip

Take a power source to the fuel pump, make sure it turns over good check your battery ground to the motor and also running a second ground to the upper radiator support. I would also go ahead and check to see if you're getting power at the ICM with a voltmeter check your relays such as b+ relay, jumper it with some wire to confirm its not the issue with the fuel pump.