B0233

Air Flow Control Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable idle
Power Loss
Increased fuel consumption
Check Engine Light Is On

Causes

DMRV malfunction
Throttle problems
Open or short circuit in wiring harness
Malfunction of the solenoid valve (solenoid)
Problems with the ECU

How to Fix

Check the condition of the wiring harness to the mass air flow sensor and throttle valve
Test the air flow sensor and throttle valve
Check system solenoid valves
Read system operating parameters using an OBD-II scanner
Replace faulty components

Related codes

P0101 P0102 P0121 P0122