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p0174

  1. Intake Manifold Gasket Job How To (It's easier than you think!)

    Care, Maintenance, and Troubleshooting
    Hey everyone! Since I was not able to find any write up or video on changing the intake manifold gasket on the 1zz (specifically in an MR2 Spyder) I decided to do a write up myself! Disclaimer: This is my first time doing this job and probably is not the best way to do it, but I am open to...
  2. intermittent P0171 and P0174 codes

    Care, Maintenance, and Troubleshooting
    Just as the title suggests, every now and then my engine throws the P0171 and P0174 codes, which state that I'm running lean on banks 1 and 2 respectively, and then the codes disappear without me clearing them. I've already cleaned the MAF but the codes are still appearing. When I scan it using...
  3. PPE Cat + Defouler + PPE Resistor = P0174 Lean Bank 2

    Care, Maintenance, and Troubleshooting
    I am pretty sure I have figured this one out, but thought I would get a second opinion as well as throw it up in the forums. After getting my PPE-Cat, I went out and bought a code reader, a few spark plug de-foulers, and got PPE to send me their inline resistor. Well, now that the ECU has...
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