Thank u john and oracle for you are input on these issue i will check for TPS, and can anybody please highlight how to test TPS that will be hepl full to me. talking about mass air flow sensor, one side of the fuel distributor is EHA and other side is MAS please explain how to test this dvice . I am also getting check engine light on reading code 4 which is link to MAS, i did erased code but it come back after couple of minutes.