P3998 Engine Fault Code

Check Solution For P3998 OBD Code :

P3998 engine code seems a kind of powertrain problem, we try to show one by one the meaning and the solution. Brief explanation of the P3998 code and definition of P3998 is the bottom side.

P3998 Meaning :

p	Powertrain Code Problem is related engine, transmission and emissions systems.
3	SAE - Generic
9	BBV Sensor Circuit Low Voltage
9	BBV Sensor Circuit Low Voltage
8	Transmission

SAE - Generic codes, which have a '0' as their second digit to indicate they are common to all makes and models of vehicles. These are the codes that are required for basic emissions fault diagnosis.

How To Fix P3998 ?

The original multi-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. P3998 code had an elaborate diagnostics procedure, including showing engine trouble codes on the air conditionning display. However, the system was troublesome, misunderstood by customers, and a rash of unpredictable failures led to the technology being quickly retired.

P3998 Code Description:

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. When you see P3998 engine fault code on your engine code reader this description will help you.

P Codes

List of all Powertrain codes.

Final Step: In the definitions listed below, there is a test drive recommended after you've completed any repairs to see if the condition is fixed. Before you take a test drive after a repair, always erase the P Code(s) first. This will turn the check engine light off and then you will know if the check engine light returns, you've got further diagnostics to complete.

BE CAREFUL !
This engine code information is presented for information purposes only. This is not intended as repair advice and we are not responsible for any actions you take on any vehicle.