LTFT Issues and Lugging

Discussion in 'Mazdaspeed 3 Troubleshooting' started by xsixx23, Oct 8, 2018.

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  1. xsixx23

    xsixx23 Greenie N00B Member

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    Hey all. I was experiencing some high (12+) positive LTFTs the other day, with a MAF code for IAT. I was also lugging pretty bad. Horrible low end until boost, but even so, slower acceleration. I ended up finding a leak at the bottom TIP clamp, of course. During inspecting the TIP I had the battery out of the way. Well, assembled everything and the car was back to normal. No weird LTFT, no lugging, until I did about 40 miles when the problems all came back. My LTFT is now sitting at positive 7.03 LTFT, blipping throttle shoves it to 9.38. STFT is showing as much as negative 25.00/positive 26.30. I have a P0453 code, (Evap Emissions Control System Pressure Sensor High Input). I cant find the problem. Im still learning how to read my logs, and I cant seem to find any abnormalities. If anybody can read it, and let me know, that would be great. Thank you.
     

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  2. Raider

    Raider Administraider Administrator Platinum Member

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    I had issues too. Bad maf, and a pile of boost leaks. Was leaking out of everything like a post Taco Bell visit.

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    Raider, via a mobile device, Oct 10, 2018
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  3. neganox

    neganox Feline Führer Moderator Platinum Member

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    Log looks like fine albeit a near maxed out wastegate duty cycle.

    Mods list?

    Check your gas cap, clear your codes and see if it comes back.
     
  4. xsixx23

    xsixx23 Greenie N00B Member

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    I ended up finding my air box is broken, not allowing it to shut properly. I tried to seal it up, until my CS SRI/TIP come in, and it seems a lot happier. Slight lug every now and then. However, my LTFT is at an 8 at cruise, 4/5 at idle, and will be anywhere around 7-9 while spooling, (which is okay? I read that spooling will cause a lean condition, right?) I reset my ECU and drove like a granny to let the car relearn the trims. It may be still allowing some excess air to come in, though. I have Autotech HPFP, Catless DP, straight pipe, JBR RMM, tuned by Stratified. I tightened my gas cap about 30 miles ago and the code is still there, so I'm hoping that solves that code whenever the ECU wants to. I found a clamp at the bottom of my TIP extremely loose, tightened and the IAT code dissppeared.[​IMG]

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    xsixx23, via a mobile device, Oct 11, 2018
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  5. neganox

    neganox Feline Führer Moderator Platinum Member

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    Weird. You might just need a new purge solenoid. @Raider just replaced his too!
     
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  6. Raider

    Raider Administraider Administrator Platinum Member

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    P2187. Got a Duralast never got the code again. Then just had to fix everything else. [​IMG]

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    Raider, via a mobile device, Oct 12, 2018 at 8:56 AM
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  7. xsixx23

    xsixx23 Greenie N00B Member

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    I will have to look into getting one. I did the intimate suck/blow test and had no air coming through at all.

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    xsixx23, via a mobile device, Oct 12, 2018 at 4:21 PM
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  8. Raider

    Raider Administraider Administrator Platinum Member

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    Swap it out Only 55 bucks at auto zone
     
    Raider, via a mobile device, Oct 13, 2018 at 6:53 AM
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