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I just installed an Air Fuel gauge onto my car and its reading kinda weird. If I let the car sit for more than 15 mins all I get is really lean readings, it doesnt move at all. Then after a while it starts to move like normal again, then if I step on the gas a little and let off, the A/F gauge lights disappear beyond the red. I'm just wondering if this is normal, I've havent done any tuning with my air flow or anything.
One more thing, ever since I've got my downpipe put on I've been misfiring. It misfires alot if I hit redline and it misfires when I'm above 3K rpm and not stepping on my gas. At times I get a loud pop, other than that its mostly just lots of crackles on and off. But it doesnt misfire at WOT unless I hit max rpm.
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