traffic light,it makes the car shake? Part replaced trying to solve this problem: fuel pump & filter,o2 sensor,fuel regulator,catylitic converter,plug wires,fuel injectors& throttle body cleaned,pcv valve.
There should be a idle sensor, camshaft position sensor, nock sensor
and did you change spark plugs.
If the check engine light is on, then AUTO ZONE will check it for nothing.
