Getting more CELs
For the last month I've been getting a few codes on my 02 4runner related to engine. I sorted those out with new O2 sensor and maf meter.Everything good for almost a month until this morning. All 3 lights came on again.A trip to advanced auto showed P0446 which i have had before but went away with new gas cap. It has occasionally come back, but usually after i get gas and all i have to do is tighten cap and it goes away. That didnt work today. Anyway i know it could be a variety of different things ,is there a way to narrow it down. Dont want to really spend 400 for vapor canister. Also what will happen if i just ignore it? I just passed inpection so not worried about that. I am also getting the c1223 and the c1246 mc pressure sensor. I've google searched but there isnt that much info on it. I did read the actual pressure sensor can't be replaced and the whole mc cylinder unit should be replaced. As we all know this is very pricey . I have also read that it could be just the actuator pump assembly which is a lot cheaper. Anyone have experience with these codes? I should add the ABS light is not on. I also have the original Andy mod on it. Not sure if that may affect it. Any help is appreciated.
For the last month I've been getting a few codes on my 02 4runner related to engine. I sorted those out with new O2 sensor and maf meter.Everything good for almost a month until this morning. All 3 lights came on again.A trip to advanced auto showed P0446 which i have had before but went away with new gas cap. It has occasionally come back, but usually after i get gas and all i have to do is tighten cap and it goes away. That didnt work today. Anyway i know it could be a variety of different things ,is there a way to narrow it down. Dont want to really spend 400 for vapor canister. Also what will happen if i just ignore it? I just passed inpection so not worried about that. I am also getting the c1223 and the c1246 mc pressure sensor. I've google searched but there isnt that much info on it. I did read the actual pressure sensor can't be replaced and the whole mc cylinder unit should be replaced. As we all know this is very pricey . I have also read that it could be just the actuator pump assembly which is a lot cheaper. Anyone have experience with these codes? I should add the ABS light is not on. I also have the original Andy mod on it. Not sure if that may affect it. Any help is appreciated.
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Mine first start with A/F sensor, I didn't change it because it would go and come (lights would be on and then off) now I have a list of them and seems finally the lights are staying on. 