Misfire won't go away
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Misfire won't go away
So I had a misfire in cylinder 3, i put a new plug in it and it' still shooting the code after I reset it. It has power but the car sounds rough and is hesitant to start. The shop said the coil was good but I haven't swapped coils yet to make sure that's not what it is.
The car had HKS M40XL plugs and i put NGK laser iridium in it and it already burned the electrode in 3 after 1500 miles so i ordered the HKS race plugs just waiting for them to get here. I know the car was burning hot thats why the plug burnt up. Even though i swapped in a new plug and the misfire is still there What could this be? Im blown away by it.
I have 2011 Evo X MR
tuned
3 inch intercooler with aluminum piping
bushur downpipe
borla exhaust
air intake
The car had HKS M40XL plugs and i put NGK laser iridium in it and it already burned the electrode in 3 after 1500 miles so i ordered the HKS race plugs just waiting for them to get here. I know the car was burning hot thats why the plug burnt up. Even though i swapped in a new plug and the misfire is still there What could this be? Im blown away by it.
I have 2011 Evo X MR
tuned
3 inch intercooler with aluminum piping
bushur downpipe
borla exhaust
air intake
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The shop did a compression test today, cylinder 3 was on getting 35. They traced the leak to the exhaust valve. The exhaust valves in cylinder 3 are bad and going to need replaced. Their going to replace the valves then check to see if the pistons and everything else is okay and re-machine the head.
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So when the last owner had it he tuned it without the cats, well the dealership put them back on. I was unaware of that so that' what caused it. Luckily the warranty I got with the dealership everything is covered on the car up to 36000 miles. Seeing I've only put 5000 on it, all I have to pay is a $100 deductible. So if the pistons are damaged and I need a new engine block, I got lucky as bad as it is. Still sucks I don't have my car.
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