What is the C4 trouble code for a corvette?

What is the C4 trouble code for a corvette?

Code #21: Throttle Position Sensor High. Code #22: Throttle Position Sensor Low. Code #23: Manifold Air Temperature Circuit High. Code #24: Vehicle Speed Sensor. Code #25: Manifold Air Temperature Circuit Low.

What does code 43 mean on a GM engine?

Trouble Code 43 indicates that there may be a malfunction in the Electronic Spark Control (ESC)circuit. ESC is used to sense spark knock (pinging) and retard the timing to eliminate it. A knock sensor (located at the rear of the engine block) sends signals to an ESC module which then signals the ECM that knocking is being detected.

What does trouble code 43 mean on a Honda Accord?

Trouble Code 43 indicates that there may be a malfunction in the Electronic Spark Control (ESC) circuit. ESC is used to sense spark knock (pinging) and retard the timing to eliminate it. A knock sensor (located at the rear of the engine block) sends signals to an ESC module which then signals the ECM that knocking is being detected.

What is code 13 on a V-type engine?

On V-type engines with two O2 sensors, code 13 would indicate the left bank sensor A quick test for the O2 sensor circuit from the ECM would be to unplug the O2 sensor and check voltage from the harness side to ground. With the ignition on and the engine off, the reading should be around .5v.

What does code 43 do to a corvette?

Again, however, the car otherwise continued to perform perfectly. (The fan operation, I have since learned, is a function of the Code 43, which, along with the engine going limp mode . . . which mine does not . . . is intended to try and prevent serious engine damage.)

What is the C4 code on a 1990 Corvette?

Code #52 (1990-91 Corvette Only): Engine Oil Temperature Sensor Low. Code #53: System Over Voltage. Code #54: Fuel Pump Circuit Low Voltage. Code #55: Defective ECM. Code #62: Engine Oil Temperature Sensor Circuit High.

Trouble Code 43 indicates that there may be a malfunction in the Electronic Spark Control (ESC) circuit. ESC is used to sense spark knock (pinging) and retard the timing to eliminate it. A knock sensor (located at the rear of the engine block) sends signals to an ESC module which then signals the ECM that knocking is being detected.

What does trouble code 43 mean on a spark plug?

Trouble Code 43 indicates that there may be a malfunction in the Electronic Spark Control (ESC) circuit. ESC is used to sense spark knock (pinging) and GM Code 43 Electronic Spark Control Fault Trouble Codes› GM OBD Trouble Codes› GM Code 43 CODE 43 – Electronic Spark Control Fault

Why does my L-98 Corvette engine not start?

When you start an L-98 engine Corvette, a series of events take place that causes the engine to run. Knowing the sequence will help you troubleshoot no start conditions. When you first turn the key to the “on” position, the fuel pump will run for 2 seconds pressurizing the fuel rails.

What’s the idle speed on a 1991 c4vettes L98?

For information on the 1990 and 1991 L-98 variant, see the Note below). The engine should show an initial idle speed of around 900-1100 RPM and then slowly diminish to 600-700 RPM unless the air conditioner is on in which case it will run at around 800 RPM.

What are the trouble codes on a 1996 Corvette?

In addition, ABS/ASR (Anti-lock Brake System/Acceleration Slip Regulation) and EBTCM (Electronic Brake Traction Control Module) trouble codes and data were introduced on the 1992-1996 Corvettes. Although limited ECM data is available, it can point you in the right direction.

What does code 32 mean on a C4 Corvette?

After many years of repairing C4 Corvettes, a distinct pattern emerges. If you investigate and ask the right questions, diagnosis becomes easier. 1984 Corvettes have coolant temperature sensor failures (code 14) 1985-1989s have Exhaust Gas Recirculation (code 32) and Mass Air Flow codes 33-34 quite often. 1990-91 Corvettes had the dreaded code 32.

In addition, ABS/ASR (Anti-lock Brake System/Acceleration Slip Regulation) and EBTCM (Electronic Brake Traction Control Module) trouble codes and data were introduced on the 1992-1996 Corvettes. Although limited ECM data is available, it can point you in the right direction.

For information on the 1990 and 1991 L-98 variant, see the Note below). The engine should show an initial idle speed of around 900-1100 RPM and then slowly diminish to 600-700 RPM unless the air conditioner is on in which case it will run at around 800 RPM.

When you start an L-98 engine Corvette, a series of events take place that causes the engine to run. Knowing the sequence will help you troubleshoot no start conditions. When you first turn the key to the “on” position, the fuel pump will run for 2 seconds pressurizing the fuel rails.