I have a 09 mazdaspeed3 with mscai, mscatback exhaust, Hypertech tune, sure rmm, and ms coilovers. I've read in other threads that the fuel pump is a weak link, and many have upgraded the internals, and I understand that there
are two fuel pumps. I don't know anything about this mod. 1) Which fuel pump (and where) is upgraded. 2) what companies make the internal upgrades, and how do I find them 3) I won't even try to do it, I will have a shop do the job. 3) How do I know if and when my fuel pump is failing - I don't want to ruin my engine, I do run the car hard sometimes. Thanks!
are two fuel pumps. I don't know anything about this mod. 1) Which fuel pump (and where) is upgraded. 2) what companies make the internal upgrades, and how do I find them 3) I won't even try to do it, I will have a shop do the job. 3) How do I know if and when my fuel pump is failing - I don't want to ruin my engine, I do run the car hard sometimes. Thanks!