It is a listening device near the pistons that listen for pinging or pre detonation inside the combustion chamber and provide a signal to the computer. The computer interprets the signal and adjusts the timing accordingly.
it means knock sensor sensor 1 circuit high input (bank 1 or single sensor)
The 2003 Nissan Frontier has 16 valves.
The 2003 Nissan Frontier has a 5-speed manual.
The 2003 Nissan Frontier has an inline 4 engine.
The 2003 Nissan Frontier is a gas-powered vehicle.
The 2003 Nissan Frontier's turning circle is 38.3 ft..
The 2003 Nissan Frontier has a 27 degrees angle of approach.
The height of the 2003 Nissan Frontier is 5 ft. 6.7 in. (66.7 in.).
The 2003 Nissan Frontier has double overhead cam (DOHC).
The 2003 Nissan Frontier is 16 ft. 10.9 in. (202.9 in.) long.
The 2003 Nissan Frontier has a 14 degrees angle of departure.
The curb weight of the 2003 Nissan Frontier is 3240 lbs..