Misfire at Idle with my solution(not tried yet)
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Misfire at Idle with my solution(not tried yet)
Hi everyone. I have 1.2 tsi 66 kw manual engine. My problem is,my advance timing normally between -3 +3 degree and rpm 660-675 when engine tempeture between 90-95 degree (obd scan) every 4-6 seconds my advance timing jump to 30 degree and rpm go down 640-650 and my sit shaking, engine misfire. If i turn headlight or press the clucth misfire still exist but very low. No fault code but i have some try. I unpluged MAP sensor , turbo MAP sensor, chang coil and spark but no change. still same rpm same advance timing at 90-95 tempature. When i unpluged high pressure fuel pump sensor cable, there is too much noise like ticking(its come from HPFP) but my rpm idle go to 690-700 rpm and no advance timing jump. Engine work very normal, but i cant use the car with unplugged HPFP because too much ticking noise, like broken noise, but i dont know problem from HPFP. My rpm increase to 700 rpm because of HPHP is bad or beacuse of every unplugged HPFP increase the rpm. I dont know, if it does broken HPFP i go change but every unplugged HFPF incrase rpm, its not solve my problem so it will money vesting. Does anyone help?
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