Accelerator pedal hard or stucked while driving.

RUBENDIMAANDAL

MEMBER
1995 NISSAN 200SX
200,000 MILES

I have car problem that the throttle lever getting hard or when the accelerator pedal being pressed as the engine warming. There is check-engine warning sign which I checked and the code reads P0505(idle control system malfunction) Can you help me specifically what could be the problem.I'm sure its in the fuel system.

1 Reply

TY ANDERSON

MECHANIC
719 POSTS

Disconnect the accelerator cable from the throttle body and move the cable back and forth while disconnected and see if it is still difficult to move the cable. If it is hard to move, replace the accelerator cable. If it is not hard to move then move on to the throttle body. Remove the intake tube from the throttle body and inspect the throttle body plate and surroundings for coking. Clean the throttle body (clean the throttle body with throttle body cleaner. You can find this cleaner at most retail auto parts suppliers) and plate and remove any black residue from the throttle body and throttle body plate. This coking can cause the throttle plate to stick and become hard to move (as long as the cable and accelerator pedal hinge is good) especially when engine warms up.