SOURCE: P0430 Cat efficiency below threshold
was the check engin light on at anytime for an o2 sensor code if so you need a new cat(catalytic converter) flash update i think was a way for a mechanic to get money from you unless it was warranty covered if your o2 was malfunctioning your car was mostlikely running rich which will plug up or burn out a cat
SOURCE: p1299 and p0122 codes Jeep Liberty 2002 3.7
P1299 Vacuum Leak Found (IAC Fully Seated)
P0122 Code - Throttle Position Sensor/Switch A Circuit Low Input
Not sure if you have solved this or not yet but these are your error code read outs. They would cause your problems.
SOURCE: PO455 odb scan code evap. system large leak. 2003
you need a smoke machine to fill evap sysytem and it will leak smoke out where the leak is to many tight places to look without
SOURCE: 2003 Jeep Liberty Stalls
thats correct, may have bad ecm (computer) or bad wire to crank sensor from ecm, also ive run into this problem and it was the new sensor i put in was no good and aftermarket,also cam sensor can do this, and also make sure the 5 volt feed wire is good,good luck hope this helps.
Testimonial: "It ended up being the cam sensor. Thanks for the info. Fixed it right up."
115 views
Usually answered in minutes!
×