The most interesting thing about vehicles is having them hitch-free while on motion.  You would agree that having a vehicle breakdown has its physical and mental effect on the owner in terms of stress, of pushing the vehicle coupled with the security challenges and the vehicle itself as it is unlikely to have a trusted hand to fix such breakdown.

Preparing oneself for such a situation is best done by ensuring everything on the vehicle is in order. This is achievable by following the simple care tips below:

Get used to your vehicle

Vehicle these days comes with many features that have been modified and improved from what it used to be. It is important that the vehicle owner knows the vehicle in and out. This is best done by going through the owner’s manuals which indicate every feature on the vehicle as well as the function of each of the features and service procedure if needed. Knowing these features puts you in the right position to operate it in its proper way and manner.

Check fluid levels regularly

Fluid is an essential component of some vehicle systems. It performs the operation of lubricating, cleaning, cooling and sometimes pressure generation in its system. As the fluid moves around the system, it tends to take the characteristics of the system while it performs its function. Most of these fluids (engine oil, coolant, transmission fluid, power steering fluids, brake fluids etc.) operate in a closed system and are not expected to be short of their level except when there is a leakage or a wear and tear in the system. Make it a habit to check all the fluids you have in your vehicle at least once in a week and note whichever is short of the full mark. Top it up and have a plan of visiting your technician to know the reason for the shortage especially if this continues.

Following preventive maintenance schedule

Preventive maintenance schedules are time-bound/mileage bound maintenance, performed on the vehicle to keep it at top performance and lessen the likelihood of a failure of a major component. It is cheaper to perform preventive maintenance than doing corrective maintenance. The time-based maintenance is measured with time while the mileage bound maintenance is according to usage of the vehicle. For example, the engine oil is expected to be changed every three months (time bound) or 5000Km (mileage bound) whichever comes first. This simply implies that if you achieve the 5000Km mark before three months, you would need to perform the lubrication service. These service intervals are spelt out in vehicles owner’s manual

ALSO READ: Dames of Buhari’s cabinet

Routine car checks

Vehicles are like machines made up of a lot of mechanical components sliding over each other and go through a lot of vibration due to road irregularities which place more stress on all parts of the vehicle. Operations of these components cause wear and tear which eventually causes clearances and noise on the affected components. A routine check of clearance on these parts is used to predict if such component needs urgent attention or something to be planned towards replacing it.

Pay attention to malfunction indicator warnings

Today’s vehicle comprises several electronics that monitor the mechanical components on the vehicle. Some are regarded as computers and they have the ability to tell when something is wrong at any location of the vehicle even before the best driver would observe it. It however makes this known by raising up a flag in form of the warning light that comes up on the cluster to inform the driver that a fault has been detected. The only way to know the fault is by going to a technician who would in turn run a scan and give a repair advice to solve the problem.

In recent times as the rains have started, it is important to get prepared and start to look at things that could cause the vehicle to break down unannounced and get you stranded on the road thereby contributing to the already terrible traffic situation.

This piece is written by my mentee Ibrahim Ogundele.

Generic codes

P1091 VVEL Actuator Motor Relay Circuit

Meaning

VVEL (Variable Valve Event & Lift) is a system that controls valve event and valve lift continuously. Rotational movement of the drive shaft equipped with eccentric cam is transmitted to output cam via the rocker arm and two kinds of links to depress the intake valve. The engine control module decides the target valve lift according to the driving condition and sends the command signal to the VVEL control module. The VVEL control module controls the rotation of the control shaft using the VVEL actuator motor and changes the movement of the output cam by shifting the link supporting point. As a result, valve lift changes continuously to improve engine output and response.

Power supply for the VVEL actuator motor is provided to the VVEL control module via VVEL actuator motor relay. VVEL actuator motor relay is ON/OFF controlled by the VVEL control module. In addition, when the VVEL actuator motor relay cannot be controlled by the VVEL control module for some reasons, its ON/OFF is controlled by the ECM.

Possible causes

  • Faulty VVEL actuator motor relay
  • VVEL actuator motor relay harness is open or shorted
  • VVEL actuator motor relay circuit poor electrical connection
  • Faulty VVEL control module
  • Faulty engine control module

P1092: VVEL control shaft position sensor bank 2 circuit

Meaning

VVEL (Variable Valve Event & Lift) is a system that controls valve event and valve lift continuously. Rotational movement of the drive shaft equipped with eccentric cam is transmitted to output cam via the rocker arm and two kinds of links to depress the intake valve. The engine control module decides the target valve lift according to the driving condition and sends the command signal to the VVEL control module. The VVEL control module controls the rotation of the control shaft using the VVEL actuator motor and changes the movement of the output cam by shifting the link supporting point. As a result, valve lift changes continuously to improve engine output and response.

VVEL control shaft position sensor (1) is placed on VVEL actuator sub assembly and detects the control shaft position angle. A magnet is pressed into the arm on the edge of control shaft. The magnetic field changes as the magnet rotates together with the arm resulting in the output voltage change of the sensor. VVEL control module detects the actual position angle through the voltage change and sends the signal to the ECM..

Possible causes

  • Faulty VVEL control shaft position sensor bank 2
  • VVEL control shaft position sensor bank 2 harness is open or shorted
  • VVEL control shaft position sensor bank 2 circuit poor electrical connection
  • Faulty VVEL control module

P1093 VVEL Actuator Motor Bank 2

Meaning

VVEL (Variable Valve Event & Lift) is a system that controls valve event and valve lift continuously. Rotational movement of the drive shaft equipped with eccentric cam is transmitted to output cam via the rocker arm and two kinds of links to depress the intake valve. The engine control module decides the target valve lift according to the driving condition and sends the command signal to the VVEL control module. The VVEL control module controls the rotation of the control shaft using the VVEL actuator motor and changes the movement of the output cam by shifting the link supporting point. As a result, valve lift changes continuously to improve engine output and response.

Possible causes

  • Faulty VVEL actuator motor
  • VVEL Actuator motor harness is open or shorted
  • VVEL Actuator motor circuit poor electrical connection
  • Faulty VVEL actuator sub assembly
  • Faulty VVEL ladder assembly
  • Faulty VVEL control module

P1094: O2 sensor circuit slow response in rich control range bank 2 sensor 1

Meaning

O2 sensor circuit slow response in rich control range bank 2 sensor 1 is the generic description for the P1094 code. But the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information about the P1094 OBDII code.

Possible causes

  • Faulty O2 sensor bank 2 sensor 1
  • O2 sensor bank 2 sensor 1 harness is open or shorted
  • O2 sensor bank 2 sensor 1 circuit poor electrical connection

P1095: O2 sensor circuit slow switching from lean to rich bank 1 sensor 1

Meaning

O2 sensor circuit slow switching from lean to rich bank 1 sensor 1 is the generic description for the P1095 code. But the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information about the P1095 OBDII code.

Possible causes

  • Faulty O2 sensor bank 1 sensor 1
  • O2 sensor bank 1 sensor 1 harness is open or shorted
  • O2 sensor bank 1 sensor 1 circuit poor electrical connection

Leave a Reply

Your email address will not be published.