Engine code H43

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Jun 28, 2009 | 09:51 PM

kylebuck89

Thread Starter

Race Director

Joined: Apr 2007

Posts: 10,215

Likes: 7

From: Lafayette LA

St. Jude Donor '09

Engine code H43

Does any know what that code stands for?

Jun 28, 2009 | 10:26 PM

nada1

Racer

Joined: Oct 2007

Posts: 338

Likes: 0

From: Kansas City Missouri

Not sure but i think it is for the knock sensor circuit

Jun 29, 2009 | 12:24 AM

formul89

Le Mans Master

Joined: Feb 2003

Posts: 9,087

Likes: 0

From: Chicago IL

My '94 would come up with that code intermittently. I replaced the left bank o2 sensor because it was really rich from that side and the code has not come back since.

Jun 29, 2009 | 06:40 AM

floridamale

Safety Car

Joined: Jan 2008

Posts: 3,939

Likes: 1

From: Vero Beach Florida

1985-1991: ECM Codes
Code #12: Normal No Codes.
Code #13: Open Oxygen Sensor Circuit.
Code #14: Coolant Sensor Circuit Low.
Code #15: Coolant Sensor Circuit High.
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.
Code #32: EGR System Failure.
Code #33: Mass Air Flow Sensor High.
Code #34: Mass Air Flow Sensor Low.
Code #36: Mass Air Flow Sensor Burn-Off Function Fault.
Code #41: Cylinder Select Error.
Code #42: Electronic Spark Timing.
Code #43: Electronic Spark Control.
Code #44: Lean Exhaust indication.
Code #45: Rich Exhaust Indication.
Code #46: Vehicle Anti Theft Fault.
Code #51: Faulty Mem-Cal.
Code #52: Fuel Calpak Missing.
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.

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