U0438 Opel Calibra OBD Code

OBD/2 U0438 error code description and symptoms.

Mass Air Flow (MAF) Sensor Intermittent The MAF sensor circuit is monitored by the PCM for sudden voltage (or air flow) input change through the comprehensive component monitor (CCM). If during the last 40 warm-up cycles in key ON engine running the PCM detects a voltage (or air flow) change beyond the minimum or maximum calibrated limit, a continuous memory diagnostic trouble code (DTC) is stored.

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code U0438, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code U0438 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

U0438 Opel Calibra Error Code Repair Process :

The scent may U0438 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such U0438, so if the inside of your car exhaust gas recirculation circuit range/performance as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

Common Causes of Opel Calibra U0438 OBD2 Code

A common cause of code U0438 is the failure of Exhaust Gas Recirculation Circuit Range/Performance, but there are several other possible causes as well, such as ;

Damaged camshaft position (CMP) sensor
Faulty ignition coil (s)
Faulty Air Flow Meter
Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection

U0438 is a kind of Network Trouble Code

U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

About Us | Contact | Privacy

U0438 Opel Calibra OBD Code

U0438 Opel Calibra Error Code Repair Process :

Common Causes of Opel Calibra U0438 OBD2 Code

U0438 code for other Opel cars