Hello guys, I got a mysterious P0171 DTC some time ago and haven't had time to diagnose it. However, I popped in my OBD-II reader today and discovered the code has disappeared.
Recently I noticed the car doesn't stall out after hot starts (if I didn't rev it or hold the engine at ~2000 rpm for 15 seconds or so) and has no rough idle issues as it had previously--I suspect this is when the issue fixed itself, but I find it odd that the code has vanished without any troubleshooting or maintenance done between when it first popped up and when it disappeared.
Any possible explanations for this? The last work I had done on the car was an oil change less than 1,000 miles ago and a BHR midpipe with cat install a few months ago.
Recently I noticed the car doesn't stall out after hot starts (if I didn't rev it or hold the engine at ~2000 rpm for 15 seconds or so) and has no rough idle issues as it had previously--I suspect this is when the issue fixed itself, but I find it odd that the code has vanished without any troubleshooting or maintenance done between when it first popped up and when it disappeared.
Any possible explanations for this? The last work I had done on the car was an oil change less than 1,000 miles ago and a BHR midpipe with cat install a few months ago.
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