P0066
Air Assisted Injector Control Circuit or Circuit Low
Generic code
Auxiliary Emissions Control
High severity
Moderate repair
Free on OBD DashX
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What P0066 means
- The fault code P0065 indicates a potential problem with the air assisted injector control system, specifically related to its range or performance. This system is responsible for injecting additional air into the intake manifold to enhance combustion efficiency and reduce emissions.
Possible symptoms
- Illuminated Check Engine Light
- Reduced engine performance or power
- Rough idling or stalling
- Poor fuel efficiency
- Increased emissions
- Potential misfires or engine hesitation
Possible causes
- Malfunctioning air assisted injector
- Obstruction or contamination in the air assisted injector
- Open or short circuit in the air assisted injector circuit
- Faulty engine control module (ECM)
Related parts
- Air Assisted Injector: Controls the amount of air passing into the injectors. Problems lead to poor fuel economy
Possible solutions
- Inspect and evaluate the functionality of the air assisted injector
- Clean or replace the air assisted injector if it is obstructed or contaminated
- Check the wiring and connectors in the air assisted injector circuit for any signs of damage or loose connections
- Repair or replace any damaged wiring or connectors
- If necessary, test and replace the engine control module (ECM)
Free on OBD DashX
P0066 on OBD DashX
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