I have a 2002 TJ 4.0 Litre 5 speed manual trans
The check engine light comes on then after a little more driving the check gauges , 4wd , and other dash lights will flash off and on ( while this happens the check engine light goes off and on at the same time ) . The code it gives is a P1391 ( cam / Crank postion sensor ) . So far i replaced the battery and the terminal ends for the battery , I found the starter wire loose last week and tightened it up and drove about 200 miles and it came back on and started the same thing as before . I have had some one sit in the jeep while it is running while i shook the wires to the ECM , and ground wires and alt / starter wires . all the grounds on the engine and firewall are tight .
I am at a loss and not sure what to do now . Thanks for any help Dave
The check engine light comes on then after a little more driving the check gauges , 4wd , and other dash lights will flash off and on ( while this happens the check engine light goes off and on at the same time ) . The code it gives is a P1391 ( cam / Crank postion sensor ) . So far i replaced the battery and the terminal ends for the battery , I found the starter wire loose last week and tightened it up and drove about 200 miles and it came back on and started the same thing as before . I have had some one sit in the jeep while it is running while i shook the wires to the ECM , and ground wires and alt / starter wires . all the grounds on the engine and firewall are tight .
I am at a loss and not sure what to do now . Thanks for any help Dave