my renix just died

was driving to work today and it shut off going 40mph, so i pull over try to crank over but all it does is crank..

the other day same thing happened to me so i changed the CPS sensor and now it happens again ( 5 days later )

i tested the old CPS and it showed .195, and also just tested the new CPS thats installed on my XJ and it reads .294

where do i start looking? i think i hear the fuel pump prime when i put turn the key on

thanks guys!!

I would try another cps. Did you replace with a cheap one or a oem one?

from autozone

Unplug the cps and replug when it dies. If it starts that is most likely the cause. I had one go out and unplugging it got me going again a couple times before it wouldn't work anymore. Clean those connections with some electrical spray cleaner.

MUKAK714 said:

from autozone

Click to expand...

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 to 3/8” from the stock 5/16”, 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 01-26-2013