'96 Jeep Grand Cherokee Crank Position Sensor (CPS)

Video detailing the quality of an OEM CPS vs aftermarket. Sorry, the video is a little dark but the point comes across.
The dependance of the CPS over the operation of the jeep is critical. The majority of the ignition problems on a jeep is due to the CPS.
Even a new sensor can continue to cause a problem due to the quality. Many people may no longer believe the CPS is the issue since a new aftermarket CPS was installed.