19richie66 17,624 #26 Posted November 5, 2014 Also check the wiring for that injector. My harness wiring is hard as a rock from age and heat. If I am not mistaken, all the injector power wires are "sonic welded" right in that area. Could have a wire that broke in the harness moving it around. Make sure a rat hasn't chewed it, lol. Share this post Link to post Share on other sites
Geno 1,929 #27 Posted November 5, 2014 Hopefully the plug will do the trick, if not an injector noid light will tell you if the wiring is good. Share this post Link to post Share on other sites
nylyon-(Admin) 7,880 #28 Posted November 5, 2014 I picked this week (and took off from work) to get this thing done. As you can all relate to, I was quite disappointed when it pulled the P0303 after working all day to get it going. This morning, the parts store opened at 7:30, I was there at 7:45 and picked up 6 new plugs. Got home, pulled off the coil pack, and pulled out #3 and my heart sank.... It was the poster child for perfect plug With nothing to lose, I pulled out the rest. When I got to #4, low and behold.... a completely closed gap. Why in the world would cylinder 4 pull a P0303? In any event, just got back from a little drive and it ran nice. Parked it in the driveway and saw an oil stain on the driveway. Not sure if it was there before or not, so I moved the Jeep a little. I am worried about the pan gasket, that thing is a BEAR to get on. If it's leaking I'm paying someone to fix it! So mission accomplished. I have to wait for the monitors to set then off to inspection! 1 Share this post Link to post Share on other sites
Geno 1,929 #29 Posted November 5, 2014 I see this all the time, I will get a code lets say 0303 like you have, but I never believe it. If you go into the datastream and look at real time misfires usually its a different cylinder that is doing the misfiring. I always thought it must be a software thing. I am glad you got her fixed though! Share this post Link to post Share on other sites
nylyon-(Admin) 7,880 #30 Posted November 5, 2014 It's running great considering the gas is 12 months old! Drove a while then came home and on the ground was dripping green fluid! Open the hood, and on the water pump is a pipe for the heater. I must have jostled it around and put a hole in it. To replace it, have to remove the water pump, so off the front of the engine goes again (I'm getting quite good at this). I bought a new pipe and water pump (because I know it's going next). Went to remove the first bolt and SNAP, the head came right off.... the other 3 came out fine. There was enough to grab onto, and for the first time in my life, it came right out with a pair of vice grips. So, I replaced the water pump, hose and front brakes, because it was shimming when stopping. I think that I'm done for now, time to sit back and relax for a little bit. Share this post Link to post Share on other sites
19richie66 17,624 #31 Posted November 5, 2014 You sure? Wont be much left to replace soon. I have had that water pipe rust through on two of mine. I put a new pump on my daughters and did it at the same time. Glad you got it done. Share this post Link to post Share on other sites
Geno 1,929 #32 Posted November 5, 2014 If you ever move this way I can use some help. Sounds like you are getting plenty of experience. 1 Share this post Link to post Share on other sites
Coadster32 793 #33 Posted November 5, 2014 Wow...caught a lucky break on that water pump bolt, (I know what you mean on that). Great job!! Share this post Link to post Share on other sites
