ok so a little background on this vehicle its a 1993 honda accord auto which originally came with the f22a1 the timing belt broke and damaged the engine so i swapped it out with a f22a6 i used intake and exhaust manifold from old engine and dizzy,ecu,and wiring harness .i replaced timing belt and water pump,spark plugs and misc gaskets.so no major repairs,when the engine was started intially it ran like a million bucks,then when i warms up it sounds like a misfire so i checked timing which was fluctuating back and forth from being on the money to off by 5 degrees or so also it does the weird idle where it revs slowly i tried to re time engine didnt work,cleaned iab,fiv,sec fiv still doesnt fix the issue also it only happens when car is warm and there is no check engine light on,i went ahead and checked for codes i got codes 7,8,and 12 which is weird bcuz car ran great before swap any ideas? i will try cleaning out egr and see if it corrects idle issue thanks for any help!!!
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