hey all, i've seen 0175 before but it was also with 0174,(right system to rich, lean). this happened at idle last time and then again this time with 0175. my engine started shuttering and shaking violently almost dying. then she picked back up and idled just fine. does anybody have any thoughts?

thanks.

 

P0175 (M) 2/1 Fuel System Rich A rich air/fuel mixture has been indicated by an abnormally lean correction factor.

 

well an update for anybody who comes accross this problem. i have finally solved the misfire that has been plaguing me for the past couple of months. its the O2 sensors. im not sure which one(s) so i replaced them all. along with the 0175 i got 0174. the 02 sensor was doing its job but not efficiently. it became sluggish. thats why it would swing from rich to lean. seeing how they are heated, also solved the other issue where i missfired until my engine was up to operating temp, ie the exhaust gas. they aren't cheap but it will stop the headache with about an hours worth of work. thanks for the help in the other posts as well.