FUEL INJECTION SYSTEM TROUBLESHOOTING
SERVICE MANUAL NUMBER 23
Troubleshooting
Diagnostic Trouble Codes for the MEFI 1 454 / 502 Mag MPI and 8.2L MPI
Engines
Code Number
Code 14
Code 21
Code 23
Code 33
Code 42
Code 43
Code 51
Code Description
(ECT) Engine Coolant Temperature
(TP) Throttle Position Sensor
(IAT) Intake Air Temperature
(MAP) Manifold Absolute Pressure
(IC) Ignition Control
(KS) Knock Sensor
Calibration Memory Failure
Diagnostic Trouble Codes for the MEFI 2 7.4L MPI Engines
Code Number
Code 14
Code 15
Code 21
Code 22
Code 23
Code 25
Code 33
Code34
Code Description
(ECT) Engine Coolant Temperature - Low Temperature Indicated
(ECT) Engine Coolant Temperature - High Temperature Indicated
(TP) Throttle Position Sensor - Signal Voltage High
(TP) Throttle Position Sensor - Signal Voltage Low
(IAT) Intake Air Temperature - Low Temperature Indicated
(IAT) Intake Air Temperature - High Temperature Indicated
(MAP) Manifold Absolute Pressure - Signal Voltage High
(MAP) Manifold Absolute Pressure - Signal Voltage Low
(IC) Ignition Control - Open IC Circuit
Code 41
Code 42
(IC) Ignition Control - Grounded IC Circuit, Open or Grounded
Bypass
Code 43
Code 44
Code 51
Code 52
(KS) Knock Sensor - Continuous Knock Detected
(KS) Knock Sensor - No Knock Detected
(ECM) Calibration Memory Failure
(ECM) EEPROM Failure
Index
Page 5D-2
90-861326--1 MARCH 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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Marine readers have rated Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23 5.0 out of 5.0 based on 1 product reviews. Just need the manual. Wrote review. Can't technically review what I haven't seen yet...