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After driving 20-30 miles my car throws this code and the car idles from 1k-2k up and down almost stuck there until I have to rev over 3k to get going orit will drop down and struggle if I reset the code the car idles normal for 20-30 miles I replaced the idle air control valve,TPS,removed the intake manifold and throttle body installed new gaskets, replaced my PCV valve and checked all my vacuum hoses and this get this code. All parts I replaced were new I can link a video of the idle if needed thanks for the help!!!
Every 20-30 miles I get this code and I have to erase it to keep driving because then I have rev over 3k to get going I replaced IACV,TPS,intake and manifold gasket,PCV valve and the timing belt and vavlve adjustment were done at a shop.
2000 Civic Si P0505
