You may have seen (several) of my topics here but I have finally noticed a trend. On my 86 ta 305 tpi anytime the battery is disconnected it rides rough and through code 44 for a while and then evens out after a week or about 100 miles. No codes. No rough driving. Just like a new car. Noticed it happened after I've unhooked my battery for testing twice. I do intend on replacing it Monday. But just worried it will make it run rough for a week again. Anyone have any ideas? Maybe a bad ground? I've done some checks and there are no vacuum leaks.

 

Logic went out the door for me. Disconnected battery this morning. Ran rough and lean and stalled. Drove to interstate and got a big fat battery stuck in there and now it runs like a brand new car. I'm glad it's fixed. Maybe bad grounds. I'm not sure. Never had a battery make my car run lean

 

Well some computers have to re-learn the settings after you disconnect the battery.