2GR-FE Manual Trans ECU

These ECUs are based on the 2011+ Toyota Sienna ECUs but have modified hardware and firmware to make them appropriate for Manual transmission swap applications.

List of modifications:

• Manual Transmission conversion

  • - PRNDL input fixed to Drive, no need to supply 12V to the "D" input anymore

  • - Cruise control adjusted to work with a manual transmission, this includes the clutch pedal switch input to cancel on the clutch being pressed.

  • - Inverted brake signal (ST−) requirement removed

  • - Torque converter related loading on decel and idle removed

• Idle

  • - Base idle raised 650 → 750 RPM

  • - A/C idle-up target ~820 RPM

  • - A/C idle-up moved from CAN to a physical wire, reusing the "R" input from the PRNDL that is no longer used.

  • - Removed expected torque converter inertia from idle control and retune controls for a lighter flywheel

  • - Quick idle learn on fresh battery reset

  • - Cold idle drops much quicker as car warms

  • - Warm idle drops to idle within a few seconds of startup.

• Throttle & drivability

  • - Rev hang delete.

  • - Pedal map recalibrated to make a light car more driveable with this power level.

  • - Throttle cap at low RPM, this does not limit horsepower output but it prevents resonance in some circumstances that caused overfueling and a sluggish tip-in.

  • - Brake override disabled, allowing simultaneous brake and throttle.

  • - vvt-i tip-in adjusted to make low throttle engagement smoother.

• Performance

  • - Rev limiter 7400RPM (7600 / 7800 / 8000 or other custom values available)

  • - Speed limiter deleted

  • - Ignition map recalibrated

  • - Faster MAF response to transition better through the area where the motor really comes alive.

  • - Pops & bangs on decel — ~1.35 s window where cut conditions are recognized but fuel keeps flowing.

  • - VVT-i tables matched to the selected camshafts — stock / FMW street / 263-A.

  • - MAF curve calibrated to the swap intake pipe — 3.5" default, 3.0" also available.

• Fueling architecture

  • - 3 bar or 4 bar brown as well as 4 bar teal injectors supported.

  • - ECU now stays in closed loop mode down to about 13.2 AFR to fuel more accurately. Previously would go open loop whenever richer than stoichiometric.

  • - Long term fuel trim subsystem completely revamped to be much more accurate over a wider range. This helps compensate for swap to swap differences better.

  • - Long term fuel trim clamps when in open loop widened from +5% to +8%. Max lean out left at -5% for safety.

• Diagnostics

  • - Extended wideband AFR reporting over OBD-II, no longer clips the max rich at 12.0:1, now allows down to about 11.1:1 to see the actual sensor values when the system goes richer.

Special for FMW 350whp camshaft selection:

• Rev limiter raised to 7800RPM. (adjustable per request)

• 4 bar fuel pressure required
  

Wiring information available here


Notes:
If you have a current Frankenstein Motorworks ECU and you just need a tune update those are available for $40, please use the contact for to reach out for more details. Unfortunately i had to remove it as an option from the page here because people were selecting it incorrectly.

This ECU does not modify any emissions operation, All the monitors are as they would be in a 2011 Sienna. This is not usable in stock Sienna applications. Because of the automatic transmission disabling it will not work on those vehicles.