P0505, p1164, p1259, p1456 help!!!

danw77

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Got a CEL and these are the four codes I'm getting. I just bought this car about a week ago and am wondering what the problem could be. Its a 2001 with 140,000 miles. I looked up all the codes and they all seem unrelated. Is there anything that would cause all of these or am I looking at four different problems?
 

J30MAN

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P1456 is just the gas cap, buy a new one. Correct me if I am wrong. Because I HAD code P1457 and it was the evaporation canister/purge valve that I replaced.
 

jwong512

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Not sure on the P0505, but for the P1164, I say just replace your O2 sensor. Seems like it's on it's way out and if you keep driving it like that, you can cause damage to your motor. I ran lean for 2k miles and my spark plugs were supposed to have about 50k left on them. Took them out and they were toast. Also, the P1259 is the Vtec Solenoid. You might be low on oil so I would just recommend doing an oil change and filling it up to 4.5qts. If the Vtec code is still popping up after that, it means your solenoid is probably clogged and you have to clean it out.
 
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