
Fault code P1336 indicates a crankshaft position sensor target gear error. It is necessary to use a decoder to perform a target gear error learning procedure for the vehicle's crankshaft position sensor, so that the ECU can accurately determine the specific position of the crankshaft's operation and accordingly identify the top dead center of each cylinder. For vehicles newly equipped with an OBD system, if the gear learning has not been performed, the malfunction indicator light will illuminate after starting the engine, and fault code P1336 will be stored when checked with a decoder. If a new engine control unit has been replaced, the following learning procedure must be performed: 1. After starting the engine, wait until the engine temperature reaches 60 degrees Celsius, the vehicle has been running for more than 10 seconds, and all other loads on the vehicle are turned off; 2. Use a diagnostic tool (after upgrading) to enter the "Gear Self-Learning" option; 3. Follow the diagnostic tool's instructions to quickly press the accelerator pedal to the floor and keep it fully depressed. At this point, the ECM should perform the gear signal learning; 4. Turn off the engine, disconnect power for 10 seconds, then restart the engine to complete the learning process.

As a car owner with some knowledge about vehicles, let me talk about the P1336 trouble code. This usually indicates a minor issue with the engine's ignition system, particularly related to the crankshaft position sensor. If the sensor provides inaccurate signals, the engine control unit (ECU) gets confused, leading to incorrect ignition timing. The result is noticeable engine shaking while driving, poor acceleration, and possibly increased fuel consumption. Common causes include the sensor being covered by oil or dust, loose or aged wiring connections, or a malfunctioning ECU control unit. My advice is not to drive immediately—find a safe spot to park and turn off the engine. Then, use a diagnostic tool to check the specific data stream and see if the sensor's resistance values are normal. If unsure, visit a professional auto repair shop for a code scan and inspection, as ignition issues could potentially damage the chassis, leading to higher repair costs. Regularly cleaning engine compartment dust and inspecting wiring can help avoid such problems.

That time when my car threw a P1336 code with the check engine light flashing, I felt really uneasy while driving. It pointed to an issue with the ignition system, likely a problem with the crankshaft position sensor signal, causing the ECU to miscalculate the ignition timing. Simply put, it's like a GPS giving wrong directions—the car would hesitate during acceleration or suddenly jerk. I immediately slowed down and drove to a nearby repair shop. The technician used a tool to diagnose it and confirmed the sensor connector was loose; reseating it fixed the problem. Don’t ignore the check engine light during normal driving—small issues can turn into big ones if left unchecked. Before heading to the shop, drive carefully and bring an OBD scanner to check it yourself first—it can save time. In short, stay calm and prioritize safety.

When the P1336 trouble code appears, the engine operation becomes unreliable, posing a threat to driving safety. This code indicates that the ignition system performance is out of range, most likely due to a faulty crankshaft position sensor. Specifically, when the sensor signal is incorrect, the computer cannot control the ignition timing, which may cause the car to shake violently and stall. Do not risk driving it; find a safe place to park and turn off the engine, then immediately call for a tow truck or repair service. I have personally checked similar situations, and often replacing the sensor can solve the problem, but wiring issues require professional handling. Timely repairs to avoid accidents are the most important.


