Trouble Code Diagnostic Hints - CARBURETED Models
TROUBLE CODE DIAGNOSTIC HINTS (CARBURETED VEHICLES)
| Trouble Code |
Diagnostic Hints |
| 12 |
No RPM (Ignition) Signal To ECU Within Several Seconds After Engine Is Cranked |
| 21 |
Detects Deterioration Of Oxygen Sensor |
| 22 |
Open Or Short In Coolant Temp. Sensor/Switch Signal |
| 25 |
Open Circuit In O2 Sensor Signal EBCV Or EACV Always Open |
| 26 |
EBCV Always Closed, Or Clogged Hose Open Circuit In EBCV Signal |
| 31 |
Open Or Short In Vacuum Switch Signal |
| 41 |
Open Or Short In Throttle Switch Signal |
| 42 |
Open Or Short In Vehicle Speed Sensor |
| 71 |
EGR Valve Normally Closed, Or Clogged Hose Open Circuit In EGR Temperature Sensor Signal |
| 72 |
Open Circuit In Fuel-Cut Solenoid Signal |