Rocka Wheelz

15/01/2026

‎Ever wondered where the essential sensors in your car are located and what they do? This quick guide breaks down four common sensors that are critical to your engine's performance and fuel efficiency.

‎MAP Sensor (Manifold Absolute Pressure): Found on the intake manifold, this sensor measures pressure to calculate engine load.

‎MAF Sensor (Mass Airflow): Located in the intake ducting, it measures the amount of air entering the engine, which is vital for the correct air-fuel mixture.

‎CRANK Sensor (Crankshaft Position): Typically found near the flywheel or gear, this sensor monitors the position and speed of the crank, sending data to the ECU to synchronize ignition and fuel injection.

‎O2 Sensor (Oxygen): Situated in the exhaust pipe, it measures unburned oxygen levels in the exhaust to help the engine computer optimize the air-fuel mixture.
‎Understanding these components can help you diagnose issues and keep your vehicle running smoothly!
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11/03/2025

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09/03/2025

Let's breath life into your old vehicles.....

08/03/2025

09/10/2023

He who loses money loses much.
He who loses a friend loses much more.
He who loses FAITH loses everything
..Eleanor Rosevelt

08/08/2023

Super clean tokunbo 2017 Lexus RX350 available......!

16/06/2023

ENGINE OIL LOSS IN VEHICLES.....
There can be several possible causes for engine oil loss in a vehicle.
Some of the common reasons include:
1. Leaking Gaskets or Seals: Faulty gaskets or seals can develop leaks and allow oil to escape from the engine.
Common areas for leaks include the oil pan gasket, valve cover gasket, front or rear main seals and turbocharger.
2. Worn Piston Rings: The piston rings are responsible for creating a seal between the piston and the cylinder wall.
If the rings wear out or become damaged, they may allow oil to pass into the combustion chamber and get burned off.
3. Leaking Oil Filter: If the oil filter is not installed properly or is damaged, it can develop leaks and cause oil to leak out of the engine.
4. Cracked or Damaged Oil Pan: The oil pan, which holds the engine oil, can get damaged due to impacts from road debris or improper installation. This can result in oil leakage.
5. PCV System Issues: The Positive Crankcase Ventilation (PCV) system helps regulate the pressure inside the engine crankcase.
If the PCV valve or its related components are faulty, excessive pressure can build up, leading to oil leaks.
6. Overfilling the Oil: Adding too much oil during an oil change can cause excess pressure inside the engine, leading to oil leaks.
7. Engine Wear or Damage: If the engine components, such as bearings or piston walls, wear out or become damaged, it can cause increased oil consumption and oil loss.
It's important to address engine oil loss promptly as insufficient oil levels can lead to engine damage and reduced performance.
If you're experiencing oil loss, it's recommended to have your vehicle inspected by a qualified mechanic to diagnose and resolve the underlying issue.
Proper diagnosis is key to any repair or replacement.

18/05/2023

A throttle position sensor (TPS) is an electronic sensor used in fuel-injected engines to monitor the position of the throttle valve. Here's some information about TPS and its functions:

1. Purpose: The TPS determines the angle of the throttle plate or butterfly valve, which controls the amount of air entering the engine. It provides vital input to the engine control unit (ECU) to regulate fuel injection, ignition timing, and other engine parameters.

2. Sensor Type: The TPS is typically a potentiometer or a non-contact sensor, such as a Hall effect or magnetostrictive sensor. These sensors detect the throttle plate's position and provide a corresponding electrical signal to the ECU.

3. Electrical Link: Unlike traditional mechanical linkages, the TPS uses an electrical connection to communicate the throttle position to the ECU. The sensor is usually mounted on the throttle body or attached to the throttle shaft.

4. Opening the Throttle: When you press the accelerator pedal, the TPS detects the movement and sends a signal to the ECU. The ECU then adjusts the fuel injection and ignition timing to increase engine power and speed. It accomplishes this by actuating the throttle actuator motor, which is an electric motor that physically opens or closes the throttle plate.

5. DTC Codes: Diagnostic Trouble Codes (DTCs) related to the TPS can vary depending on the vehicle and the specific issue. Here are some common DTC codes associated with TPS problems:

a. P0120 - Throttle/Pedal Position Sensor/Switch 'A' Circuit Malfunction.
b. P0121 - Throttle/Pedal Position Sensor/Switch 'A' Circuit Range/Performance Problem.
c. P0122 - Throttle/Pedal Position Sensor/Switch 'A' Circuit Low Input.
d. P0123 - Throttle/Pedal Position Sensor/Switch 'A' Circuit High Input.
e. P0220 - Throttle/Pedal Position Sensor/Switch 'B' Circuit Malfunction.
f. P0221 - Throttle/Pedal Position Sensor/Switch 'B' Circuit Range/Performance Problem.
g. P0222 - Throttle/Pedal Position Sensor/Switch 'B' Circuit Low Input.
h. P0223 - Throttle/Pedal Position Sensor/Switch 'B' Circuit High Input.

09/05/2023

EXHAUST SMOKES (Types, causes and possible remedies)

1. Types of car exhaust smoke
- White smoke: indicates coolant is burning due to a head gasket leak, cracked engine block, or a damaged cylinder head.
- Blue smoke: suggests oil is being burnt due to worn valve seals, piston rings, or a damaged PCV valve.
- Black smoke: indicates an excessively rich fuel mixture or incomplete combustion due to clogged air filters, malfunctioning fuel injectors, or faulty sensors.

2. Causes and remedies of white smoke
- Causes: head gasket leak, cracked engine block, or a damaged cylinder head.
- Remedies: repair or replace the head gasket, engine block, or cylinder head.

3. Causes and remedies of blue smoke
- Causes: worn valve seals, piston rings, or a damaged PCV valve.
- Remedies: replace the worn seals, rings, or valve, or rebuild the engine.

4. Causes and remedies of black smoke
- Causes: clogged air filters, malfunctioning fuel injectors, or faulty sensors.
- Remedies: replace the air filter, clean or replace the fuel injectors, or replace the faulty sensor.

5. Other possible causes of exhaust smoke
- Overfilled engine oil level
- Faulty turbocharger or intercooler
- Incorrect fuel octane rating
- Malfunctioning EGR valve
- Damaged catalytic converter

6. Precautions and maintenance tips
- Regular engine oil changes and filter replacements
- Check coolant levels and perform regular engine maintenance
- Use the correct fuel octane rating and avoid overloading the vehicle
- Check the EGR valve and catalytic converter for damage or clogging.