B3770

Air Flow Control Feedback Circuit Actuator Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–111 (est.)

Symptoms

Unstable engine idling
Reduced engine power
Increased fuel consumption
Check Engine Light Illuminates

Causes

Dirty or stuck throttle valve
Air control solenoid valve malfunction
Open or short circuit in wiring harness
Poor contact in control circuit connectors
Throttle Position Sensor Malfunction

How to Fix

Check the condition of the throttle valve, clean if necessary
Check the resistance and operation of the solenoid valve
Inspect the wiring harness for damage
Check the contacts in the control circuit connectors
Test the throttle position sensor
If necessary, replace faulty components

Related codes

P0101 P0121 P0222