okay i just purchased a 97 xj with a 4.0 H.O and ran okay but was getting worse as i drove becuase it had almsot year old gas so i took it to auto store. the check engine was on and thru 14 codes. 6 codes were for messed up injectors, multiple miss fires bad coil bad map bad o2 and few other things. well i changed out
map sensor
coil
used cap in better condition
fresh gas with injector cleaner
it runs good in park and then acts like its missing then runs great in park at ideal and when you rev it. then you put it in gear and it run good then sputters and stalls or acts like it missing like crazy.
im pulling my hair out trying to figure it all out cuz its driving me crazy just want it to run good
so i ask you guys what could it be?
bad injectors or clogged injectors?
bad cap and rotor?
bad plugs and wires?
someone help me please
all the codes are comming from one or 2 things. got any code numbers? if it had old gas get some octane boost and run better gas like mid grade or premium. try changing the fuel filter
dont know if this will help but mikes ford did the same thing a jeep guy told me his did the same thing it was a fuse that was what it was in mikes truck to good luck
Quote from: wayne w on August 17, 2011, 01:02:56 PM
dont know if this will help but mikes ford did the same thing a jeep guy told me his did the same thing it was a fuse that was what it was in mikes truck to good luck
x2 with that many codes check all your fuses check wireing if its an auto it could be a slnoide in the trans post all the codes solenoid
Quote from: Flat_Black on August 17, 2011, 12:48:40 PM
all the codes are comming from one or 2 things. got any code numbers? if it had old gas get some octane boost and run better gas like mid grade or premium. try changing the fuel filter
i agreee its only a few things causing it and i did this with the gas already and there is no fuel filter
Quote from: wayne w on August 17, 2011, 01:02:56 PM
dont know if this will help but mikes ford did the same thing a jeep guy told me his did the same thing it was a fuse that was what it was in mikes truck to good luck
which fuse was it
it was a 15 amp in the power distribution
okay ill look into it
its not the fuses i checked them all.
the codes that were throwin were
6 bad or stuck open or closed injectors
bad coil
bad map
bad o2
bad wheel speed senor
unplugged trans senor
multiple miss fires
dont no where all the fuses in a jeep is but mikes was under the hood sorry couldnt help
sounds like you might have a bad PCM or ECM whatever Jeep uses... maybe swap out the computer for a known good one see what it does...
you have one problem makeing it have all them codes, check the plug to the trans make sure there clean and check where the wiring harness hook together. could be the computer but i would check out the trans plugs first.
thanks guys and yes it has to be one main problem.
i can seem to find the unplugged trans senor
now it wont barley start
it many not be unplugged could just be diry and not makeing contact. or could be someing elce to.
well i checked the trans pluggs all there and plugged in and i wiggled them start it up ran great drove it down the road went to drive it again and chokes out and stalls etc in drive but its good in neutral and reverse
sounds like your on the right track clean all plugs or at least unplug and plug in a couple times
yeah ill try it
my xj did that and i found a bad fuesable link that powers the injectors i had power on both sides of the link but there was lots of corroison in the wire and was only like 1 or 2 little strands of wire makeing contact i fixed it and ran like a champ
its passenger side under the hood where all the links are at that i found and when i replaced the one i found more that where getting corroaded (sorry for the bad spelling)
okay ill look into it.
and the plugs on the trans are made in the trans there no actually plugs
Quote from: my broke ass ford!! on August 17, 2011, 11:21:05 PM
its passenger side under the hood where all the links are at that i found and when i replaced the one i found more that where getting corroded (sorry for the bad spelling)
you have a pic of this
put new plugs in and running good so far
also try the ballast resistor, or change the map sensor, crap which does remind me i gotta do the same thing because mine does that also an 88 xj, but i did find that when i put the tranny into power mode it ran somewhat better. also check all the vacuum lines, because those mopars are nothing but a big vacuum cleaner. loll
NEW PROBLEM
FUEL PUMP STUCK ON AND COOLING FAN STUCK ON
wow you must have a big electrical problem ???
I'm thinking so. I cycle my key forward and the fan n pump stay on I've rotated relays nothing checked fuses nothing. The gas gauge volt gauge and temp gauge aren't working =\?
well i unplugged all plugs and it did the trick idk whats going on
Sounds like this truck has been under water. Unplug every single connector on it, spray real heavy with electrical contact cleaner, blow dry, and then WD-40 them all, that should help alot. Undo all grounds and clean them up real good, too. ;D
Quote from: old school truck dude on August 19, 2011, 01:37:26 AM
Sounds like this truck has been under water. Unplug every single connector on it, spray real heavy with electrical contact cleaner, blow dry, and then WD-40 them all, that should help alot. Undo all grounds and clean them up real good, too. ;D
x2
Well I think its all figured out now. crossed my fingers! But its all good and drove it all over this evening. so we will see.
Clear the codes... wait for them to pop back up and see what they are.
That's the plan she running goof tho