BPB
NAXJA Forum User
- Location
- Battle Ground, Washington
I am working on a new to me 1989 xj 4.0 aw4 231. I bought this xj yesterday. The symptoms are that it will sit there and crank and blows gas fumes out of the throttle body. the vacuum system seems to be working backwards. If you pull a plug it blows out hot air when it cranks. when I unplug the cps it doesn't blow gas out the throttle body. I have fuel and I have spark. Here is what I have done.....
All plugs, wires, cap and rotor are new
replaced cps
replaced idle air sensor
replaced all vacuum lines
inspected egr valve it is new
checked all plug connections and order multiple times
disconnected cat
tried disconnection every sensor individually
checked for fuel pressure
Me, dellstopjeep, and goblazers_6 are all stumped. any suggestions before I check the timing chain?
All plugs, wires, cap and rotor are new
replaced cps
replaced idle air sensor
replaced all vacuum lines
inspected egr valve it is new
checked all plug connections and order multiple times
disconnected cat
tried disconnection every sensor individually
checked for fuel pressure
Me, dellstopjeep, and goblazers_6 are all stumped. any suggestions before I check the timing chain?