B3242 Diagnostic Trouble Code

B3242 is a kind of OBD-II Diagnostic B-Body Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a B3242 diagnostic trouble code may include:

Rich or lean exhaust
Fuel pressure too low
Engine surge
The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly

Possible Causes :

Defective ECU strategies or components will prevent proper regeneration
The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture.
Faulty IMRC actuator relay (if equipped)

Repair Processes :

Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve. If the engine displays a miss and there wasn't a code, determine which cylinder is misfiring. If the exhaust manifold is visible, spay or pour a small amount of water on each cylinder exhaust port. Water will evaporate immediately on good cylinders and slowly on the missing cylinder. If this can't be accomplished pull the plugs and check the condition.

Process Tips

Diagnostic trouble code B3242 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before B3242.

Fortunately, B3242 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B3242 Trouble Code For Specific Cars

B3242 Moretti Panoramica Boost Calibration Fault
B3242 Jowett 7 Seat Headrest Feedback Potentiometer Circuit Failure
B3242 Delahaye 235 Hydraulic Pressure Sensor Circuit High Input
B3242 Kia Stonic Servo Motor Airintake Left Circuit Failure
B3242 Kia Capital Seat Rear Vertical Motor Memory Position Out of Range
B3242 Honda Prelude Rear Echo Sensor Circuit Failure
B3242 Steyr-puch 650 Lamp Turn Signal Left Circuit Failure