I have an 04 Grand Caravan 3.3l. I get code P0032, Replaced the O2 Sensor with new and couldn't clear the code out. Replaced it again, cleared the code successfully this time and got it a CEL about 5 minutes later for the same sensor. Any Advice would be appreciated.
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O2 sensor heater high usually means the PCM is actuating the sensor's heater and it doesn't sense it working, meaning an open in the harness. Here's a wiring diagram so you can ohm the sensor heater wire
Driving my van over the weekend, the CEL reset itself. I drove it for almost 2 Days and then it popped up again. Same code but also this time got P0041 for Incorrect Purge Flow. I did smoke test it last week and had to replace the EGR Valve, then retested it and it is leak free. I am going to check that wiring for the heater on the upstream o2 sensor. Are there any correlations between these two codes?