Hello, Got a 360 here that is giving us fits. Car throws code P0050 with P0301-4 following and bogs down. We've replaced both the front O2 sensors and checked the harness for breaks. Car will run perfectly until it suddenly decides to start stumbling, which simply kicking to Neutral and restarting the engine will correct. Drives fine after that. This has happened about 6 times in the past couple of weeks. It feels like half the engine is not running- but for the life of us we can't figure out why. Our best guess is that something with the computer for that side (Cyl 1-4 misfire, but what side?) is going wrong. The boss thinks it may have some relationship to the key immobilization system because it has happened 3 times right after starting the car. Is there anything that we should check/replace? We don't have access to an SD scan tool.
have to tried turning off the main switch. Wait about 15 mins. and turn back on and let the car run for about 10 mins and reset the system specs?
My apologies, but I don't know where the main switch on this car is located. Is it like a racecar configuration where there's a switch at the rear bumper to disconnect the electrical system?
