ok so since ive had the car recently the code p1259 was been there. i notice that when im driving around 2000 rpms and i dont give it any gas it automatically takes the rpms down, like it will fluctuate inbetween 2 and 1k rpms..any idea which part of the vtec system it is?

and a new code p1456 has just came up ..any idea what i can do to fix it?

 

I have that one currently. I replaced the gas cap, didn't clear. I bought the charcoal filter just need to get under the car and see if that clears it



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