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Unread 07-28-2012, 03:36 PM   #1
Rican142
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ignition coil prob

So I just bought a new coil and I'm getting electric to it but nothing is coming out. Any ideas

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Unread 07-28-2012, 05:45 PM   #2
cruiser54
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Your CPS is bad?
Did you check it?
Give us a little history here.
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Unread 07-28-2012, 06:51 PM   #3
Rican142
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What's a cps? And can't really tell u much,I've had the truck a few months, has yet to be driven on the road it was running just fine bout half hour b4 I went to start it.
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Unread 07-28-2012, 07:08 PM   #4
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Quote:
Originally Posted by Rican142 View Post
What's a cps? And can't really tell u much,I've had the truck a few months, has yet to be driven on the road it was running just fine bout half hour b4 I went to start it.
Crank Position sensor.



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 isnít 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 wonít 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!! Thatís 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. Itís 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 itís mounting holes with the first drill bit that just wonít fit through the original holes. Then, when mounting it, hold the CPS down as close to the flywheel as you can while tightening the bolts.


Revised 11-29-2011
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Unread 07-28-2012, 07:22 PM   #5
Rican142
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Ok thanks bro, ill check it tomorrow and ill get back to u
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Unread 07-29-2012, 03:54 PM   #6
Rican142
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Soooo. The cos ain't the problem...and it took a whole lot of time and yelling to establish this.
I talked to a jeep guy over at advanced auto and he told me it could either be the ignition module or the stator. Hope its the stator cause its only 50 as opposed to the 2
130 for the module
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Unread 07-29-2012, 04:05 PM   #7
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It ain't the stator. You can unplug the stator and it will run.

What was so hard about the cPS that required yelling and all?
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Unread 07-29-2012, 04:29 PM   #8
Rican142
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But will it start? And not yelling so much bout the cps but some difficulty removing it and getting it back on
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Unread 07-29-2012, 04:53 PM   #9
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Did the original one test bad?
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Unread 07-29-2012, 05:46 PM   #10
Rican142
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Not to sure ashow to test it
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Unread 07-29-2012, 06:02 PM   #11
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See Post #4.
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Unread 07-30-2012, 07:37 AM   #12
Rican142
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No it tested good, I think its the ignition module x.x I feel my wallet getting.lighter
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Unread 04-21-2013, 12:10 AM   #13
Rican142
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Just catching up on some old posts, yes it was the ignition module, bought one from advance, threw it in there and she fired right up
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