P0439 Engine Trouble Code
When you check engine light came on code P0439 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P0439 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.
When your car's 'P0439 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.
P0439 Code Meaning :
|OBD-II Diagnostic Powertrain (P) Trouble Code For Engine||Intake Valve Control Solenoid Circuit Low||Fuel Temperature Sensor B Circuit Range/Performance||Cold Start Injector 1 Malfunction||Ignition Coil A Primary/Secondary Circuit Malfunction|
The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.
P0439 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP0439 OBD-II Trouble Code The Engine Control Module ( P0439 code.
Reason For P0439 CodeThe reason of P0439 OBD-II Engine Trouble Code is Fuel Temperature Sensor B Circuit Range/Performance.
Parts or components should not be replaced with reference to only a P0439 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.