Too Much Secondary Air Injected
Table of contents
P1477 DODGE Possible Causes
- Blockage in system
- Defective Oxygen Sensor
How do I fix code P1477 DODGE?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P1477 DODGE code
The cost of diagnosing the P1477 DODGE code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
The Powertrain Control Module (PCM) detected too little injected air during the secondary air injection monitor test
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1477 DODGE Description
With the engine warm-up completed, engine running in closed loop, the Powertrain Control Module (PCM) detects that too much secondary air was injected during the test period. Check for loose, broken or miss-routed vacuum hoses. Refer to Monitor Test, code repair chart to test this code.