po171 engine code

mikesMSP12 said:
well ive had the same problem. the dealer told me it was a wasgate. so i took it somewhere else and they said it was running lean, so they replaced a bad maf and it was good for about a week and the cel came back? any suggestions

It's the wastegate.
 
ok well i got my car back and it doesnt feel like it runs the same.. like going half throttle in like 2nd and 3rd gear it kinda kicks back in fourth sometimes
 
JDM Sam said:
you get the actuator replaced?

Been really busy at work. Will probably get it done next week.

Thanks for your help at NOPI Sam. You were right about redoing my setup and resetting the ecu. I took it easy on the way home and got about 36 mph. I got 450 miles out of the tank. I think that is a record for me.
 
Last edited:
PlatinumMSP said:
i got the same cel a couple days ago, any solutions guys?


From all that I'm reading on the forums this code is caused by a vaccum leak. Check all of your vaccum lines. Most people are experiencing a leak from the wastegate actuator.
 
****, well I guess its a good thing i'm almost back to bone stock and i've got a little under a thousand miles left on my warrenty.
 
i replaced my wastegate and have had no problems yet. i just bought the one from atp also.. mazdas wastegate is something around 300 right?
 
i have 73000 miles on mine and i just replaced my wastegate and have had no problems yet. i think i should replace the s*** vaccum lines while im at it cause those things are like pencil lead theyre so brittle..
so sorry this was an edit to the post above mine^^^
 
y0sky said:
Been really busy at work. Will probably get it done next week.

Thanks for your help at NOPI Sam. You were right about redoing my setup and resetting the ecu. I took it easy on the way home and got about 36 mph. I got 450 miles out of the tank. I think that is a record for me.

no problem man. i had a fun time at nopi and in atlanta.
as much as i hated the judging i would consider going again next year.
 
Just as an FYI i had this code and i just cleared it up. My problem was a slight exhaust leak pre O2. The reason for the small leak was i didnt tighten down a bolt enough on my recent "exhaust" install.
 
dealer replaced my wastegate, primary o2, maf, and gaskets all over the place, idle is back to normal and cel is gone, car runs like a champ
 
Back