Crank no start after intake/exhaust manifold gasket replacement

[89pioneer]

I have 1989 pioneer and I Just did my intake/exhaust manifold gasket. I am getting a crank no start. I’m not getting spark, Everything is plugged in, all vacuum lines are all routed right, and I’m getting fuel. 

[Jeep Driver]

8 minutes ago, 89pioneer said:

I’m not getting spark, Everything is plugged in,

CPS

[89pioneer]

4 minutes ago, Jeep Driver said:

CPS

I have Recently replaced the CPS

[Jeep Driver]

It's going to be the number one cause based on the work you did. 

 

What did you replace it with? Aftermarket sensors are junk out of the box.

[89pioneer]

3 minutes ago, Jeep Driver said:

It's going to be the number one cause based on the work you did. 

 

What did you replace it with? Aftermarket sensors are junk out of the box.

Aftermarket yeah 

[cruiser54]

Test it.

 

CRUISER'S MOSTLY RENIX TIPS

RENIX CPS TESTING AND ADJUSTING

OCTOBER 30, 2015 SALAD 119 COMMENTS EDIT

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 itself as shown in Figure 2 as Connector A, 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.

Another little tip to save tons of aggravation is to stick a bit of electrical tape to your 11mm socket and then shove the bolt in after it. This reduces the chances of dropping that special bolt into the bell housing.