P0A87 BMW Fault Code
Check P0A87 OBD Fault Code ReasonThe Camshaft Position sensor will signal the Engine Control Module when the #1 cylinder is ready for the spark plug to fire (top-dead-center on compression stroke).
The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.
P0A87 Code Symptoms :
The rule of P0A87 code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of P0A87.
Likewise, overriding the OBD system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.
Diagnosis And Repairing P0A87
Parts or components should not be replaced with reference to only a P0A87 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.
How to fix P0A87 code ?
- Exhaust gas leaks
- Damaged VCT phaser
- Faulty Variable Camshaft Timing (VCT) position solenoid
- Intake Valve Timing Control Solenoid Valve circuit poor electrical connection
On some transmissions, such as automated manual transmissions or automatic transmissions with manual mode, the GSP switch lets the TCM know whether or not the driver has selected automatic or manual function.
On manual transmissions, the GSP switch informs the TCM which gear the driver is selecting, and may function as a neutral safety switch, depending on system design. The TCM also uses the gate select position switch to monitor transmission operation. For example, if the driver selects manual mode and selects 3rd gear on an automatic transmission, the TCM may monitor speed sensors to detect clutch and brake slippage.
