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View Full Version : 1989 XJ Running Issues


ClayXJ
06-02-2006, 09:05 PM
Hello... I have a 1989 XJ 4.0 swapped into my CJ. The 4.0 starts, runs and idles. When I press the gas, however, it stalls out (boggs down but never dies) and almost backfires. It sounds like the TPS has gone bad, but I still think I have some vacuum issues.:smokin:

Can anyone point me in the right direction as to what vacuum lines go where? Chiltons doesn't really show much. What components of vacuum can be eliminated? What vacuum lines go directly into the passenger side of the throttle body? Can a MAP sensor from a wrangler be used with the cherokee engine? Mind you, the EGR valve is not set up, as well as the PCV Valve and Breather valves. Any questions, feel free to ask.

Thanks in advance.


Jeff