Hi Everyone,

Need your kind assistance to identify the exact issue;

NOTE: CHECK & VSC LIGHT IS "ON"" DUE TO ERROR CODES - P0051 (OXYGEN SENSOR HEATER CONTROL CIRCUIT LOW [BANK 2 SENSOR 1]) & P0420 (CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD [BANK 1].

PREVIOUS ISSUE: CAR WAS WORKING FINE HOWEVER IT GOT HEATED UP AND WATER WAS LEAKING MECHANIC FIXED THE WATER JACKET SEALS (AS PER HIS TERM HE CALLED IT "PIZZA LEAKS") HE DIDN'T REPLACED ANYTHING JUST USED STICKY SUBSTANCES TO FIX THE LEAK . IN THE MEANWHILE I ASKED HIM TO CHANGE THE POWER STEERING MOTOR AND NEW SPARK PLUGS. CAR WAS FINE FOR A DAY.

CURRENT ISSUE: YESTERDAY I WAS AT 40MPH AND THE CAR SWITCHED OFF ON THE ROAD HOWEVER TRIED TO TIGHTEN UP ALL PRIMARY CONNECTIONS AND CAR STARTED AGAIN (I HAD TO STRUGGLE WITH THE ACCELERATOR). TODAY IN THE MORNING AFTER A 12 HOURS REST CAR IS SWITCHING ON BUT NOT TAKING THE ACCELERATION ANYMORE AND SWITCHING OFF. I CLEANED THE THROTTLE BODY WITH WD40 AND REPLACED THE MAF AIR FLOW SENSOR HOWEVER ISSUE REMAINS THE SAME.

ASSISTANCE APPRECIATED IN ADVANCE.

 

I experienced a similar situation - I had to replace the coils and wires