Tony151

A few weeks ago I ran into a no spark/no start condition with my 99 Cherokee se.

I changed the ignition coil, plugs, wires, distributor cap, and rotor. - nothing.

So last night I thought that I had it figured and I installed a new crank position sensor, this did the trick! My jeep had life! .. I drove it around for about an hour with no problems.

Until this morning... out of nowhere back to a no start/spark condition.

Any ideas?

toasterknight

Was it a mopar cps? It seems like no one can make a functional cps for these other than mopar.

Tony151

Was a master pro from O'Reilly auto parts

toasterknight

I would get a mopar cps and return that one. Many a times that has been the problem.

93_xjcherokee

Take that pos sensor back. Spend the extra cash on a factory replacement. Those aftermarket ones only work like 10% of the time

Tony151

Do I need to be concerned about any air gap calibration when installing the new cps?

Note: yesterday before I installed the crap cps I was getting a correct 5v reading with multimeter on the connector, but today it's reading at 1.5 volts. The battery has a full charge.