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Discussion Starter #1
So once I start my car on a cold motor it runs fine but once it warms up it starts to misfire and only on cylinder 3 so code p0303 also code p1399 shows up but I can drive the car once you I hit higher rpms misfire goes away but comes back when I’m lke cruising or lower in the rpms. I’ve replaced spark plugs, rotor and cap, ignition control module I’ve switched injectors around to see if would switch and downs stays on cylinder 3 also only smokes when I first start it on a but once it warms up doesn’t smoke anymore I have a 98 Honda prelude type sh h22a4
 

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BB6'n till R34'n
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6,083 Posts
Oil smoke on first start sounds like valve seals need to be replaced. Is leakdown or compression even across the cylinders?
 
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