Andre Hall
New member
i have a 2002 jeep tj sport 4l it runs but not well idles fine but no power and almost like timming off ( figure cause only 4 cylinder are firing) so to begin i just changed my coil rail since i was getting the p0352 code , changed the cam sensor , the crank sensor, the plugs and still was running not good , i sorta tested the ohms on my old rail and seemed good i tested for spark and no spark on 2 and 5 witch i also tried my fuel injecters and 2 and 5 seemed like had no affect on my engine running but all the others did. im wondering what can and would affect only coil b witch controls spark plug 2and5 to not spark? what are the odds of two coil rail being defective on the b coil (p0352) tested my old rail for continuaty and it seems fine( but not posative ) also i notice that if i tap the coil rail hump with anything the b coil sounds hollows with a and c sound solid at that my new coil rail also sounds that same hollow on b and solid on a and c, i actualy called another parts store and thay said that there rail sounds solid on all a, b and c coil hump on the rail( maybe there not tapping it right maybd if i went there and tapped it with a screwdrive it would be the same as the two i have here) or both my rails are defrctive. im maybe leaning toward the ecm ( does that control not sending spark to a coil ????) i did find two wires from the ecm that were worn down on a bolt ( but not broken, i stipped the rest of the coating and schrink wrapperd it) and on one more note idid get the jeep a lil water logged, any insight would be appreciated
