P3988 Engine Fault Code

Check Solution For P3988 OBD Code :

P3988 engine code seems a kind of powertrain problem, we try to show one by one the meaning and the solution. Brief explanation of the P3988 code and definition of P3988 is the bottom side.

P3988 Meaning :

p	Powertrain Code Problem is related engine, transmission and emissions systems.
3	SAE - Generic
9	BBV Sensor Circuit Low Voltage
8	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 P3988 ?

The valves of each cylinder are kept closed using a pair of arms that replace the conventional engine's roller-type rocker arm. P3988 code one of these arms follows the cam profile while the second arm connects to the valves. During normal engine operation the two arms are joined by a locking pin.

P3988 Code Description:

The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions. When you see P3988 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.