So I've suspectd for a while, and it was confirmed this weekend by His Holiness Pope Crivellone, that my m30 is down on power.
When I bought the motor in 2010 out of a running, driving 535i it had been well-maintained by an enthusiast and was in great shape. In fact when I pulled the intake manifold to paint it I honestly thought the head had been rebuilt (I confirmed with the PO, it hadn't)
But lately I'm noticing that it's just not pulling like it should. It idles fine and I've recently replaced the TPS after finding it was not sending the proper WOT signal. But still I don't seem to be making the power I should. So I figure I'll tear in to it and do the cap, rotor, plugs and water pump... should I do the wires too? I think the motor has about 150k on it at this point and I'm sure they're original.
Anything else I should check? Oh and I should probably mention it has the Miller WAR/MAF setup on a stock Miller tune for 91 octane and stock rev limiter.
When I bought the motor in 2010 out of a running, driving 535i it had been well-maintained by an enthusiast and was in great shape. In fact when I pulled the intake manifold to paint it I honestly thought the head had been rebuilt (I confirmed with the PO, it hadn't)
But lately I'm noticing that it's just not pulling like it should. It idles fine and I've recently replaced the TPS after finding it was not sending the proper WOT signal. But still I don't seem to be making the power I should. So I figure I'll tear in to it and do the cap, rotor, plugs and water pump... should I do the wires too? I think the motor has about 150k on it at this point and I'm sure they're original.
Anything else I should check? Oh and I should probably mention it has the Miller WAR/MAF setup on a stock Miller tune for 91 octane and stock rev limiter.
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