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08-08-2023, 03:50 PM | #1 |
Drives: '07 Yaris Liftback Join Date: Jul 2007
Location: Bay Area, CA
Posts: 41
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Yet another 2ZR swap - Auto to Manual + CARB legal
Inspired by the other awesome 2ZR builds here, I was hoping for the planets to align and give me a reason to embark on this swap on my own 2007 HB. When the auto trans finally gave up the ghost at 248k miles, the door was opened. It became clear that a full rebuild of the trans was needed, I of course decided on the harder option: 2ZR swap + manual swap + make it CARB legal.
Here's what I have so far: Donor Car Found a manual XD at a Pick-N-Pull near me in relatively good condition that I could pull the engine, trans, mounts, harness, ecm, and associated accessories for the swaps. The longer mileage on the car necessitates some additional inspection and overhaul, but the combined cost is still less expensive than sourcing a "tested" engine/trans. Electrical With the XD's engine harness, there's a minimal amount of modifications needed to make the electrical work. On the engine side it's the MAF sensor (pinout is different from the Yaris). Also, a speedometer needs to be added to the XD transmission since my Yaris is non-ABS. For the manual swap, the clutch neutral safety switch plug already exists on the harness in the footwell. Simply plug and play. Emissions To pass California BAR for smog, the cat must match the engine. The serial on the Yaris cat will not pass for the 2ZR, so a new cat had to be purchased. As long as the ECM matches the engine and all other emissions components are in place (fuel return, evap canister, etc), BAR guidelines will be met. CA BAR Engine Change details A/C Compressor and hoses are different for the 2ZR, but compatible with the hard lines and existing condensor. I didn't get a chance to discharge Upgrades Changing out 5th with a lower geared set for lower RPMs and swapping in an MFactory Helical LSD while I have the transmission open for inspection. Planning & Tracking Google Docs These docs were compiled using info found here, verifying parts fitment on sites like ToyoDIY and Amayama, and the official service manuals for each. You're welcome to track my progress and/or use as a parts reference. 2ZR Swap Tracker - Google Sheet 2ZR Swap Checklist - Google Doc Special thanks to tmontague, brushforhire, and ArmstrongRacing for their detailed threads Engine Out! Brake booster removed Floor shifter installed |
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