Metlic53

Just put my neon injectors into my 90 model cherokee renix. i know i got the right injectors, their the 703 number. after install it sounds like its running like a stock car, missing alot, alot of hesitating, barely running, as if one of the injectors isnt plugged in. any suggestions? and its smoking alot

Pistol-McGee

Did you reset the PCM?

Metlic53

how do i do that on a renix?

wahoo

I don't know if they are all the same, but you take your battery cables off and hold them together for 10 seconds, put them back on the battery and then turn your headlights on without starting your jeep but I can't remember how long on the headlights. Hope this helps.

Ash

I did the swap in my 90 Renix worked out great ,Are they JY injectors and did you clean them prior to install?

red_dog007

Where did you find those injectors? Get lucky at a junk yard. I've got 3 more yards to look at so I'm crossing my fingers.

Do the 703 plugs come off the DOHC? I found a 96 SOHC Neon and it had 740 plugs.

HCCAFan

Spray carb cleaner around your plugs and see if you have a leak.

Programbo

Maybe got a bad injector in the batch? Crossed a wire installing them? Missed a plug in somewhere? Vacuum leak? Did you clean them?....Test them?

Metlic53

they came off a running 98 cherokee. its getting way to much gas, i think it may be the fuel regulator because the o rings in it fell out and i wasnt sure how they went out, prob messed it up. they were cleaned prior to install. how do i test them? im going to replace all the vacuum lines, their old and brittle

HCCAFan

You'd have to check the pressure on the rail to see if that's it. Or put the old ones back in and see if it's still crazy.