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

 

oh and it ran fine before it was just leaking gas on injector#6

 

check vacuum line to map sensor for crack/split/breakage

 

Are you sure the wires are hooked to the right injectors?

 

I'd suggest putting one of your old injectors back in place of the one you suspect as being bad and if it then runs fine you can go from there.

 

looks good any other ideas...maybe i forgot to hook something up>>>>

 

yes i marked them up before i changed them...does anyone have a wire color / injector write up to double check?

 

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

 

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)

 

It's also backfiring when I let off the gas suddenly. I checked all that stuff it looks okay

 

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 ....

 

Mine did the same thing with injector swap... I had 1 and 2 mixed up

 

That's pretty Damn good don. Took me a second to realize you were referencing golf buy good!

 

cant have just one hooked up wrong tap no3 injector with small object like screw drive handle see what gives

 

running rough back firing change the inj or fix the wiring (whichever is wrong) is there lots of smoke from the exhaust check the map sensor and related parts.