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Hi guys, I'm having a lot of trouble at the moment tuning my car, and in need of some suggestions. Basically the AFR at idle and light load moves around and there is obvious misfiring looking at the wideband. It seems fine under load though. I've tried my best to tune it out but over a long time but it's a moving target and I'm tuning around an underlying issue that varies with conditions (temperature, electrical load). The main clue I've got on this is that if I turn the Air Conditioning on, it stabilises the condition a lot and it pretty much runs well (almost no misfiring) at the low load conditions. I'm not sure quite which direction this would indicate the problem is? Could it be I need to improve my grounding? Appreciate your thoughts.
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