Router Screenshots for the Motorola NVG589.Refer to vehicle specific repair manual to perform component tests for the VCT unit. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. P0000 Jeep the main thing to check is to verify the operation of the VCT solenoid. What does the P0000 code mean? Yeah it says no DTC detected? Phantom misfire codes? I can run for three days sometimes weeks, no CEL. So I keep getting random misfires in 1-4. In other words, the battery has been disconnected or a new tune had been flashed in and the vehicle had not been driven yet to do the checks. I always assumed the P0000 codes were like the gas engine code which meant no more than the computer had not done all it's internal checks.O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1). P0155 - Meaning, Causes, Symptoms, & Fixes. FIXD explain symptom, causes and severity of P0155. Code P0155: Oxygen sensor heater circuit malfunction (bank 2 sensor 1).