What reading did you get and which method did you use?

 

Checked out the ignition switch today before I had to go to work. It looks perfectly fine. Any other suggestions it could be.

Thanks

 

I did an ohm test, since I was by myself. I read a post a while back that the ohm reading had to be between 175 and 250 ????maybe???? Im reading 200.

 

Unfortunately, the Ohm test is unreliable and misleading. The AC voltage test is the only way to be sure. Set your meter on the cowl near the wiper so you can see it through the windshield while you're cranking... or recruit a friend or neighbor. I've done it alone so I know it's possible.

 

Renix CPS Testing and Adjusting
　
　
Renix CPSs have to put out a strong enough signal to the ECU so that it will provide spark.
Most tests for the CPS suggest checking it for an ohms value. This is unreliable and can cause some wasted time and aggravation in your diagnosis of a no-start issue as the CPS will test good when in fact it is bad.
The problem with the ohms test is you can have the correct amount of resistance through the CPS but it isn’t generating enough voltage to trigger the ECU to provide spark.
Unplug the harness connector from the CPS. Using your voltmeter set on AC volts and probing both wires in the connector going to the CPS, crank the engine over. It won’t start with the CPS disconnected.
You should get a reading of .5 AC volts.
If you are down in the .35 AC volts range or lower on your meter reading, you can have intermittent crank/no-start conditions from your Renix Jeep. Some NEW CPSs (from the big box parts stores) have registered only .2 AC volts while reading the proper resistance!! That’s a definite no-start condition. Best to buy your CPS from Napa or the dealer.
Sometimes on a manual transmission equipped Renix Jeep there is an accumulation of debris on the tip of the CPS. It’s worn off clutch material and since the CPS is a magnet, the metal sticks to the tip of the CPS causing a reduced voltage signal. You MAY get by with cleaning the tip of the CPS off.
A little trick for increasing the output of your CPS is to drill out the upper mounting hole, or slot it so the CPS bracket rests on the bell housing when pushed down. Then, when mounting it, hold the CPS down as close to the flywheel as you can while tightening the bolts.

　
　
Revised 07-30-2012

 

its a story i just found myself going thru a few weeks ago i ended up changing everything till i got to the ecu or ecm. oriellys had the best one i could find and now my 89 runs sooo damn good.just a thought.good luck

 

I was your computer? Ive read some posts were people were saying its almost never the computer that goes bad.

 

Cruiser, Im on my way out the front door to go test the CPS again. Thanks for the info. Ill let you know what I find out.

 

Tested CPS and got .5 volts.

 

Please help with any suggestions. Im still stuck and have no running jeep. Any other suggestions? I called a mobile mechanic to see if he would come out and work on it. After I told him what if was doing and what I have replaced so far he declined.

 

Had the same issue with my 94' 2.5, I replaced everything from the cps, fuel pump, dist, cap,wires,plugs, fuel filter, my #4 was about 35 psi down on compression so finally did head gasket put it all back together and first turn of the key fired right up...

 

Renix Jeep ICU/Coil contact refreshing
　
　
The contacts between the coil and the ICU on your Renix Jeep can become corroded and loose causing a complete or intermittent no-start condition. I recommend the following procedure as a maintenance precaution to insure this is eliminated as a possible cause now and in the future.
The coil is attached to the ICU by two T20 Torx bolts. Remove these two bolts and lift the coil up off the ICU. You will see 2 pins and 2 sets of contacts. Clean both the pins and springy contact pieces with a good electronics cleaner.
Squeeze the springy contacts closer together with some needlenose pliers. Apply some dielectric grease to the contacts and bolt the coil back on to the ICU.
While you’re right there unplug the connectors from the ICU and inspect the pins in the harness connector. Make sure the pins are not retracted into the connector. Spray out the connector and the receptacle of the ICU with the same good electronics cleaner you used earlier. Apply dielectric grease to the connectors and plug them back in.
I feel this procedure should be performed at least once in the lifetime of a Renix Jeep.
　
Revised 11-29-2011

 

Cruiser, the ICU and Coil were both replaced last year the entire area was cleaned up along with using dielectric grease. I also replaced the coil again when this all started just incase it went bad even though its less then a year old.

 

Well, crud.