• NAXJA is having its 18th annual March Membership Drive!!!
    Everyone who joins or renews during March will be entered into a drawing!
    More Information - Join/Renew
  • Welcome to the new NAXJA Forum! If your password does not work, please use "Forgot your password?" link on the log-in page. Please feel free to reach out to [email protected] if we can provide any assistance.

No bus, no injector pulse, has spark

PoconoChris

NAXJA Forum User
2000 jeep xj....crank no start no injector pulse, "no bus" but has spark (sputters spraying carb and choke cleaner in throttle body)

- Cam and crank sensor check out at 5 volts.

-Have fuel pressure.

- replaced cam and crank sensor

-currently disconnected crank and cam sensor and turned ignition on with same no bus issue. No gauges move.

-ohmed out pcm on 30 and 28 for the ccd and got 120 ohm

-ohmed out ccd from the diagnostic port and got 60 ohm

-ccd + and - are 2.40 and 2.41 volts respectively.

-Disconnected tcm and no change with no bus

-checked EVERY FUSE

I'm out of ideas?
 
Grounds are good. Put in a 2001 jeep grand Cherokee ecu in and it fired right up. Off to get the proper year/model specific pcm due to still no bus but I'm sure that's due to the wrong pcm
 
Back
Top