| Re: Running rich and hunting for idle |
Subject: Re: Running rich and hunting for idle by lunytnz on 2014/9/9 7:20:40 Thanks for posting the article. I rarely find anything that is flawless, but can usually find something worthwhile in most everything I read. Since Matatk pointed out the caption under the pic of the O2 sensor, that brings up a significant possibility... just a couple of years ago, I had the head gaskets replaced because of a coolant leak. I just got the AC Delco O2 sensor tonight, so I'll be curious to see if the old one has a white coating. From the data I've collected, it appears the code is intermittent and the airflow seems commensurate with throttle position and engine speed (so the MAF doesn't *appear* to be the culprit). The FSM chart for Code 45 points you at the Diagnostic Aids. Unfortunately, for me, I'm lacking the equipment to get very far. I can check the fuel pressure (and when I did it a year ago, it was fine), but I don't have an injector tester to do an injector balance test. So, I hope to find time to get the O2 replaced in the next few days and also to check the fuel pressure again. Thanks for all the info and the help! |
