1997 528i, jap spec , It will start very well when cold, and when driving is great. Once at temp, if I turn her off , its very hard to start. Splutters to life and feels slightly sluggish driving. Idles fine always , but feels a little rough below 1500rpm if I blip the throttle, I've just bought her so I've done the following: new plugs, new air filter, new fuel filter, cleaned icv, cleaned maf, replaced pcv with good one. Im picking crank position sensor out of whack when its warm. Changed out cam sensor for a replacement, no change in starting whilst warm. No cel light but I'm suspect on its operation . I unplugged maf, and started car, and it didn't light up. Opinions welcome!
searched , need some time experience on hard starting
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