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  1. Corolla 9th Gen/1st Gen Matrix (2003-2008)
    Hello! I'm an amateur with all things car related, i was curious if it is possible to program or somehow cause VVTI to trigger at a lower RPM, as far as i'm aware VVTI only activates around 4k rpm, is it possible to lower the RPM required for the engine to active VVTI? to get more punch at lower...
  2. Corolla 9th Gen/1st Gen Matrix (2003-2008)
    Hi everybody ! I want to share with you how I achieve to run on 100% E85 on my 2003 Corolla : (if you want only the data, you can skip the next paragraph !) So some years ago, I started to read about an 3ZZ-to-1ZZ mod : I swapped my intake manifold and throttle body for celica parts. At the...
  3. Corolla 9th Gen/1st Gen Matrix (2003-2008)
    Hello everyone, please someone can help with this problem: I have a Corolla 2003 Manual, originally with 3ZZ-FE 1.6 Engine, then this engine overheated and I replaced with 1ZZ-FE 1.8, but the harness and the ECU are from the original 3ZZ. The guy who installed the engine did some connectors...
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