If you have removed the crank pulley (with alternator belt) then it can be installed in the wrong position, 3 possible positions but only one is correct, with the little dot lined up with the hole. I have made this mistake myself in the past...I haven't checked . First they spray more fuel and spray less fuel . The crank sensor is in position but i dont know the phonic wheel. Some one onced said it can be sprocket its out of its way or finished
Also crank sensor needs to be working and plugged in above the cam cover on top of the engine! It is possible to trap the wire and damage it.
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