Hi i am new to this fourm i hope you can help me
I have got a bmw 520i E34 M50 engine when the car is idleing it is a bit rough but when you try and set off it missfires and pops (backfire) i have changed the plugs and it was ok for about 50 miles then it started again?? but is ok far up the rev range???
i have got a multi meter and tested the lamba sensor and the volts just stay the same 0.5 i think?? (is this right)
i have just tested the coil packso tonight by tring to mesure the resistance and it just comes up -0.521 then jumps to 0.825 ect it is all over the place is this right
It only use to do it when warm but it is starting to do it cold now ????