C3470 Diagnostic Trouble Code

C3470 is a kind of OBD-II Diagnostic C-Chassis 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 C3470 diagnostic trouble code may include:

Excessive exhaust leak
Hesitation upon acceleration
Malfunction Indicator Lamp (MIL) illuminated
Diminished fuel efficiency

Possible Causes :

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.
Defective ECU strategies or components will prevent proper regeneration
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.

Repair Processes :

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. 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. Use the DVOM to test resistance and continuity on all system circuits if actuator and sensor resistance levels are in compliance with manufacturer's specifications.

Process Tips

Diagnostic trouble code C3470 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 C3470.

Fortunately, C3470 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C3470 Trouble Code For Specific Cars

C3470 Renault Manager Head Rest Switch Circuit Failure
C3470 Giannini 1000 Oil Change Reset Button Circuit Short To Battery
C3470 Maserati 422 Transmission Fluid Pressure High
C3470 Talbot 150 Mirror Passenger Down Circuit Short To Ground
C3470 Lada Calina Shift Solenoid A Stuck On
C3470 Vauxhall Corsa C Pressure Control Solenoid "C" Intermittent Short
C3470 De Dion Bouton 10 Hp HO2S Heater Resistance (Bank 1 Sensor 2)