Had mine throw a CEL over the weekend - about a week after installation. Similar to SparkyG's comments - I went for a hard 2 hour drive to the cottage and I had the CEL thrown due to "Increased Emissions". I don't have the HFC but the ECU is capable of removing this. I'm taking mine back to have the programming looked into as it shouldn't have thrown the CEL. Nothing performance wise - just another light on the dash.
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Originally Posted by sparkyg
Give it time. It may start to happen after spirited driving. That was the the problem it sometimes would happen after a hard drive
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