5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
I have a 97 540iA. 147,000 miles on it. Recently I did a bunch of work on it. Mainly the valvecover gaskets and the upper timing chain covers. At the same time I did all this I put some new Bosch Platinum 2 spark plugs in. Since then I have been getting knock sensor errors. at first is was the number 3 sensor. I thought it may be just loose wires. SO i unplugged and plugged them in a couple of times. Reset the computer and now it is the number 2 knock sensor. Now when it went on this last time I actually heard the car ping right when the light went on.
Could all of my problems be do to the sparkplugs? or is it time to replace the knock sensors? Just to refrase another way. The light comes on and stays on. It doesn't flicker and then go out.
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