95 riv supercharged has a vibration at idel up to about 2000 or so rpm i thought for a while i had the wires crossed ,plugs and wires are new no external vacum leaks ? engine light is on but have no way to pull code old plugs seem to show signs of a lean condition could it be tps,maf or what already changed 02 sensor and the balancer seems to be in good shape its not loose ,does this car have an air temp sensor and could that be an issue .bought car from aneighbor its been sitting for over 5yrs
i have replaced the following
fuel pump
fuel filter
heater core
intake manifold gaskets
supercharger coupler 02 sensor

a mechanic told me that 3.8 are notorius for vibrating:runaround:

this cars driving me crazy

95 riv supercharged has a vibration at idel up to about 2000 or so rpm i thought for a while i had the wires crossed ,plugs and wires are new no external vacum leaks ? engine light is on but have no way to pull code old plugs seem to show signs of a lean condition could it be tps,maf or what already changed 02 sensor and the balancer seems to be in good shape its not loose ,does this car have an air temp sensor and could that be an issue .bought car from aneighbor its been sitting for over 5yrs
i have replaced the following
fuel pump
fuel filter
heater core
intake manifold gaskets
supercharger coupler 02 sensor

a mechanic told me that 3.8 are notorius for vibrating:runaround:

this cars driving me crazy

Same thins with my 95 Rivi, started out with the harmonic balancer , changed plugs, checked coils, tried different injectors? Any luck ?

Same thins with my 95 Rivi, started out with the harmonic balancer , changed plugs, checked coils, tried different injectors? Any luck ?
ok found out what was wrong #1 boost actuator was bad and the vacuum solenoid connected to it hade the wires touching together causing thr service engine light #all the motor and tranny where shot after taking a very long and good look at them so i replaced them all i will start a nu post telling everyone what i did and it was cheap too:smooch: