INJECTOR HELP GOING CrAZY
04-14-2012, 12:24 PM
#1
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INJECTOR HELP GOING CrAZY
hey guys,
so i just got 6 new neon injectors for the old girl 89 xj. And big surprise it runs worst than ever. I misses like crazy.. it starts and idles fine, but when you give it some gas it falls on its face. Here is the weird part. IF i pull the injectors off one by one i notice it running worst till i get to #3. I seems to run the same with the injector on or off. I checked it with a voltage meter and its getting juice so whats next? im going nuts over this
so i just got 6 new neon injectors for the old girl 89 xj. And big surprise it runs worst than ever. I misses like crazy.. it starts and idles fine, but when you give it some gas it falls on its face. Here is the weird part. IF i pull the injectors off one by one i notice it running worst till i get to #3. I seems to run the same with the injector on or off. I checked it with a voltage meter and its getting juice so whats next? im going nuts over this
04-14-2012, 12:37 PM
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Year: 1994 1993
Model: Cherokee
Engine: 4.0
hey guys,
so i just got 6 new neon injectors for the old girl 89 xj. And big surprise it runs worst than ever. I misses like crazy.. it starts and idles fine, but when you give it some gas it falls on its face. Here is the weird part. IF i pull the injectors off one by one i notice it running worst till i get to #3. I seems to run the same with the injector on or off. I checked it with a voltage meter and its getting juice so whats next? im going nuts over this
so i just got 6 new neon injectors for the old girl 89 xj. And big surprise it runs worst than ever. I misses like crazy.. it starts and idles fine, but when you give it some gas it falls on its face. Here is the weird part. IF i pull the injectors off one by one i notice it running worst till i get to #3. I seems to run the same with the injector on or off. I checked it with a voltage meter and its getting juice so whats next? im going nuts over this
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04-14-2012, 12:56 PM
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this is the maddening part. i first replaced the back two that where leaking 5,6. i hooked it back up and it ran like crap missing ect. so i replaced the other four with new ones.. still doing the same thing
04-14-2012, 01:31 PM
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
change the #3 with no change with it unplugged it's bad
check MAP sensor
any vac leaks would come with a high idle
do a propane check around your inj. O rings (or you can use chem tool)
check MAP sensor
any vac leaks would come with a high idle
do a propane check around your inj. O rings (or you can use chem tool)
04-14-2012, 02:42 PM
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It's also backfiring when I let off the gas suddenly. I checked all that stuff it looks okay
04-14-2012, 03:50 PM
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Year: 90,84
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Engine: 4.0,2.5
Hey! I came up with this myself, just for this.
LITTLE BALL, LONG GREEN, TEE YOUR WHITE BALL...................................
Light Blue, Light Green, , Tan, Yellow, White, then Black are the injector wire color codes I think. Maybe that could be it.
If you know the pair in the middle is right, you only need to check one on each end.
I'd triple check that little map tube from the inside of the TB up to the MAP there on the firewall. Any little crack ....
LITTLE BALL, LONG GREEN, TEE YOUR WHITE BALL...................................
Light Blue, Light Green, , Tan, Yellow, White, then Black are the injector wire color codes I think. Maybe that could be it.
If you know the pair in the middle is right, you only need to check one on each end.
I'd triple check that little map tube from the inside of the TB up to the MAP there on the firewall. Any little crack ....
04-14-2012, 04:02 PM
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Year: 1990
Model: Cherokee
Engine: The venerable 4.0
Originally Posted by DFlintstone
Hey! I came up with this myself, just for this.
LITTLE BALL, LONG GREEN, TEE YOUR WHITE BALL...................................
Light Blue, Light Green, , Tan, Yellow, White, then Black are the injector wire color codes I think. Maybe that could be it.
If you know the pair in the middle is right, you only need to check one on each end.
I'd triple check that little map tube from the inside of the TB up to the MAP there on the firewall. Any little crack ....
LITTLE BALL, LONG GREEN, TEE YOUR WHITE BALL...................................
Light Blue, Light Green, , Tan, Yellow, White, then Black are the injector wire color codes I think. Maybe that could be it.
If you know the pair in the middle is right, you only need to check one on each end.
I'd triple check that little map tube from the inside of the TB up to the MAP there on the firewall. Any little crack ....
04-14-2012, 04:17 PM
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Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
cant have just one hooked up wrong tap no3 injector with small object like screw drive handle see what gives