My 05 PT Cruiser is Mad at me

chrysler
acceleration

#1

My 2005 PT Cruiser Limited 2.4 Turbo bucks under acceleration and had displayed the codes for a bad Map Sensor, Throttle Positioning Sensor and Oxygen Sensor. I replaced both Oxygen Sensors, Map Sensor and the TPS. Each time I replaced a sensor and took it out for a test drive it ran great. The next day my wife is on her way to work and I am on the phone with her, she accelerates to get on the freeway and the bucking is back. The codes it displays now are P2074, P1697 & P0038. All the previous codes except P0038 disappeared when I disconnected the ground cable for 15 minutes after the repair. I start the car every morning for her and run the heater for 15 minutes as it is in the 30’s here in the morning and so I replicate that before I take it on a test drive after completing a repair so the conditions are the same. Help Tappet Brothers !!!


#2

The code indicates that the resistance of the heater circuit for one of the O2 sensors is high. Since you already replaced the O2 sensors, you could have a bad connection in one of the plugs.