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Thanks Starboard M Web Wheeler The write up was great I took your advice and bought a booster and m/c off of a 2000 grand cherokee. I still have to do the install but hoping that it will help. I had a question though do I need the proportioning valve that will accompany the booster or will the...

I was just wondering if any one on this thread knows if a 1995 -1997 grand cherokee booster and mc will work or should I stick with the 99 and up models? I have a 1990 xj, I went from abs to non-abs and now need something more.

I didn't put a guage on the fuel but when it is running I can depress the stem and it squirts a couple feet.

sorry I miss read "the map sensor plug on the tb" I will check that also

Thanks I tried unplugging the knock sensor and noticed no change, and as far as the map sensor goes mine just has a green pluggin that looks as if it can go only one way but I will double check tonight.:wierd:

:huh: Alright I am losing my mind I started to work on this again last night and come up with nothing. I went to moab over the weekend with the family and was wishing my jeep was running, but no the dang thing wants to argue with me:badpc: . SO this is what I tried I tried another ecm out of...

Thanks guys

hey chrisja77 where did you get the speaker set up for the rear roof? that looks hand because the speakers at the rear hatchback just aren't enough?

I have double checked for it being 180 out and I wasn't. I even pulled the timong cover back off to see if the builder of the new engine didn't get the timing gears set right and they were correct. I was reading some where else that the knock sensor could cause the backfiring and not send the...

ok I have tried retarding the dist one tooth and advancing it one and in those positions it won't start at all. WE decided to pull the timing cover back off and it appears to be correct. I was curious what would it do if the engine was the high output and I put the intake of mine onto it; with...

O.k here we go. I have a 1990 jeep cherokee limited with the 4.0l six cylinder. I just put a brand new engine in the jeep yesterday and it fired up fine. The only issue of many is that when i go to give it throttle it spits, sputters and backfires. I have checked I swear alomost everything...

I am not sure how all this works I jsut registered and was wondering how to start a thread. I just have a 1990 jeep cherokee limited 4.0l It seems that I have the same problem but mine I can start it up and it will run but as soon as I go to give it rpm's it spits, sputters and back fires. Any...