What does P0969 Mean? 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 P0969 engine fault code on your engine code reader this description will help you. engine code P0969P0969 fixobd P0969dtc P0969obd code P0969obd2 P0969P0969 car codediagnostic code P0969car code P0969check engine code P0969fehlercode P0969P0969 fiatcodigo P0969codigo falla P0969P0969 kody b??dówcodigo de falla P0969 What are the common causes of P0969 ? Pressure Control Solenoid "C" Control Circuit Range/Performance How do you troubleshoot P0969 ? If the scan tool has that capability, and the scan tool can operate the IMRC valves, then the problem is either resolved and a simple code clearing is all that's left or a new PCM would be called for. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. Replace the oxygen sensor that is downstream from the catalytic converter on the side of the engine that does not contain cylinder #1. Also, if a oxygen sensor code stating "heater circuit malfunction" the sensor has most probably failed. Searches related to P0969 Code - Pressure Control Solenoid 'C' Control Circuit Range/Performance P0969 P0968