Check engine light due to camshaft/crankshaft position sensor
I replaced my '98 Wrangler engine last year with a remanufactured one. The crankshaft position sensor was connected when we pulled the old engine out. DOH...it snapped the sensor off it's mount, and so when we got the new engine back in and running, it was no surprise that it spit out a 1391 error code: "intermittent loss of either camshaft or crankshaft position sensor". So I replaced the crankshaft sensor with a new one. Still the error code. So then I replaced the camshaft sensor with a new one. Still the error code. I reset the PCM, but the check engine light keeps coming on.
So, I'm thinking maybe the wiring harness connector was damaged when we pulled the engine out, or possibly a short? Any suggestions would be great. My smog inspection is way past due now.
New replacement sensors will be equipped with a
paper spacer glued to bottom of sensor. If installing
used sensor to vehicle, a new paper
spacer must be installed to bottom of sensor. This
spacer will be ground off the first time engine is
started. If spacer is not used, sensor will be broken
the first time engine is started.
(4) New Sensors: Be sure paper spacer is installed
to bottom of sensor. If not, obtain spacer
(5) Used Sensors: Clean bottom of sensor and
install spacer PN05252229.
(6) Install sensor into transmission bellhousing
(7) Push sensor against flywheel/drive plate. With
sensor pushed against flywheel/drive plate, tighten
mounting bolt to 7 N·m (60 in. lbs.) torque.
(8) Connect sensor pigtail harness electrical connector