jasons xj

Im stuck!!!, Ok, i have an 89 cherokee with automatic and straight six(186,000 miles). I have no spark or fuel. I have replaced the following: coil, control module, distributer,cap,rotor,plugs and the crank position sensor. I have no spark at the coil. I tested the position sensor and i have the resistance but no voltage. I have read that this could cause the no spark/fuel problem but am stuck from here..What powers the crank position sensor? I am going to trace the wires tomorrow morning but do not know what relay it will lead to. I am assuming that it leads to a relay that opens the fuel and spark circuits. I wou7ld give more info but i bought this for 300 bucks. I found the cps and it was burnt -both wires, I found an old distributer under the passenger seat..thats why i bought new one. The engine right now only has 60 compression at each cylinder..I just want to get the fuel and spark issue figured before i dig into the compression issues. Any help is much appreciated.

djritter1122

well it sounds like a pcm issue. check your fuses then if thats not it have the computer tested but sounds like it is a dead computer

joe bob

and while your doing that pull the plugs and put a little marve mitery oil in each cylender and by the time you figure out the rtest you should have good compression.

dar83

no fuel or spark would lead me to test the ignition switch its self. might not be macking contact anymore

ckysodkorn_xj

this is a very confusing title... -.- i was expecting to see your xj stuck. and yeah i would check the ignition switch and the pcm. both people gave good responses.

G_P

60 PSI on each cylinder means you have some serious issues........ It should be around 150 on each cylinder.