P2188 and P2178 CEL

Discussion in 'Mazdaspeed 3 Troubleshooting' started by Tristan Smith, May 1, 2023.

Watchers:
3 users.
  1. Tristan Smith

    Tristan Smith Greenie N00B Member

    Joined:
    Dec 3, 2021
    Posts:
    3
    Trophy Points:
    3
    Location:
    Florida
    Ratings:
    +1 / -0
    Year/Make/Model: 2007 Mazdaspeed 3
    Mileage: 30k-50k (Replaced Motor with Low Mile CX-7)
    Location: Jacksonville, Florida
    Concern: Running too rich on and off-idle. AFR is a bit more "normal" at OT
    DTC's: P2188 and P2178
    Modifications: 3" Catback Straightpipe, Ebay Headers (working on it), Cobb SF CAI & Filter, Autotech HPFP, Step Colder Spark Plugs, 160 Thermostat
    ECU/Tuning Software: Cobb Stage 1 +SF 93
    Tuner:
    Is the concern intermittent? It happens pretty regularly most noticeable on start/restart and idle
    Can you duplicate the concern?
    Recent Repairs: Replaced Camshaft Sensor, fixed a coolant leak coming from my BPV because previous owner swapped the vacuum line and the coolant line.
    Correction:



    Hey, so basically my car has been giving me the biggest headaches since the day I bought it. Don't wanna give up on it cause it means something to me. So, I need help troubleshooting about a week ago today my car threw two codes. One being P0335 (resolved) and the other being P2188. Since I have fixed the crankshaft sensor the car was running "normal" for a few days then the P2188 came back and about a day later the P2178 showed up. I have already cleaned the MAF sensor and replaced the O-ring seal, I did it the same day I replaced the camshaft sensor, and just replaced the spark plugs about 500 miles ago.

    It is a swapped motor out of a CX-7, the paperwork given to me by the old owner matched up and the mileage was reported 20k-40k from seller. Since then I've put about 10k on it. I am still running the stock clutch which is on its way out the door, kind of irrelevant but giving all the info I got, stock turbo I'm assuming with ODO miles (181k). It eats fuel which I'm not sure if its just the way I drive or something deeper. Get about 18-19mpg in the city so it says and 21-22mpg on the highway. My AFR is always normal so seeing it go anywhere below 13.00 gets my heart pumping. Another thing I've noticed is that it seems a very underpowered. It still gets up and goes but it just doesn't do it the same as it did before the codes where thrown and even before that I could tell something wasn't right. I used to be able to beat/tie FBO 350z and a stock Kia Stinger Gt before the codes and just the other day I got absolutely walked by a.......STOCK Fiat Spyder 124.

    I will upload a few data logs I took today. Outside temp was about 85 at the time. Datalog 6 is a 2nd, 3rd, and 4th WOT pull and Datalog 4 is a 3rd and 4th WOT pull. I know I should be looking at the LTFT and STFT but I'm honestly not sure what those two mean at all. Any help or suggestions would be greatly appreciated.

    Also I have bought a protune from freektune I have just been putting off doing it because my car keeps breaking. Also with needing a new clutch find it pointless to get a proper tune if it cant even put the power down anyway.
     

    Attached Files:

  2. Awafrican

    Awafrican Moderator Silver Member

    Joined:
    Feb 11, 2016
    Posts:
    3,681
    Trophy Points:
    113
    Location:
    Canada
    Ratings:
    +2,943 / -11
    Have you done a boost leak test? That's where I'd start
     
    Awafrican, via a mobile device, May 1, 2023
    #2
    • Like Like x 1
  3. Tristan Smith

    Tristan Smith Greenie N00B Member

    Joined:
    Dec 3, 2021
    Posts:
    3
    Trophy Points:
    3
    Location:
    Florida
    Ratings:
    +1 / -0
    No I haven’t yet, I made one just haven’t been able to yet. Ill give it a go tho, any common areas i should lookout for? And if i don't find anything?
     
    Tristan Smith, via an iPhone, May 1, 2023
    #3
  4. Awafrican

    Awafrican Moderator Silver Member

    Joined:
    Feb 11, 2016
    Posts:
    3,681
    Trophy Points:
    113
    Location:
    Canada
    Ratings:
    +2,943 / -11
    any connection point. Chances are it's a leak somewhere, if it doesn't show up with boost leak check for exhaust leak and injectors
     
    Awafrican, via a mobile device, May 1, 2023
    #4
    • Like Like x 1
  5. Easter Bunny

    Easter Bunny Professional Engineer Motorhead Platinum Member

    Joined:
    Feb 11, 2016
    Posts:
    3,371
    Trophy Points:
    113
    Location:
    Earth
    Ratings:
    +3,655 / -19
    What are the ltft and stft
     
    Easter Bunny, via a mobile device, May 1, 2023
    #5
Loading...

Share This Page

Users Viewing Thread (Users: 0, Guests: 0)