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misfires

  1. Misfires on '00 GT-S TRD

    Repair & Maintenance
    Hey all, I need help to diagnose my issue with misfires. First off, let me describe to you my engine bay. I bought the car with an engine swap and it already had a SRI with no cat converter. The car ran fine for 3-4 months and then started loosing power and finally started misfiring approx...
  2. Missfire issue (p0300) and black smoke?

    Repair & Maintenance
    hey guys, so i have been having a very hard time diagnosing what exactly is causing random misfires on my celica, i have a 2000 gts, only engine mods are a trd intake and trd exhaust with stock headers. so the car was throwing a p0171 lean code but i fixed that with two new o2 sensors and a new...
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