Micro Image turbo yaris

[cali yaris]

Picked it up today after some more tuning. Pics and hopefully a little vid tomorrow for you guys.

THE GOOD

**Runs 8.7 psi off the spring, FULL boost by 2800 rpm - the GT28 with the smaller A/R choice (.64) was totally the way to go.
**Runs very smoothly, much better than before. Idle is adjustable (along with everything else), no more rpm hunting.
**Art programmed a two-step rev limiter. If the e-brake is pulled (enough to light the dash light), it sets the first rev limiter -- this is a great and easy way to do a launch control. Can't wait to drag race this car.
** All dash gauges still work! Speedo, fuel gauge etc., so the dash has its own ECU, doesn't need the main one.
** The xB pedal/cable/TB/intake mani ROCK. So responsive! I love cable throttles.

THE "BAD"

It needs more tuning, not ready to beat up on at 5000+ rpm yet. Might need different coils. Might need bigger injectors Going to drive "safely" until next thursday when we can go at it again. Trying to get it tuned to a certain point when we can do the motor swap. Not quite there yet, but the car is quite drivable.

THE WEIRD

The electronic power steering doesn't work any more. I know it has its own control unit and relay -- wondering if it is somehow linked to the ECU. Anyone know? Meanwhile... I actually LIKE it! Not that easy when idling, but once under way the car has a much better feel. I may do a DIY on how to disable your power steering so you can try this.

Ok = that's all for tonight!

[1NZYaris1]

it's on the C/D i sent you
but from memory the power steering is controled via the main ecu ,
which takes readings from speed and rpm module, i think

[CTScott]

Originally Posted by cali yaris

Picked it up today after some more tuning. Pics and hopefully a little vid tomorrow for you guys.

THE WEIRD

The electronic power steering doesn't work any more. I know it has its own control unit and relay -- wondering if it is somehow linked to the ECU. Anyone know? Meanwhile... I actually LIKE it! Not that easy when idling, but once under way the car has a much better feel. I may do a DIY on how to disable your power steering so you can try this.

Ok = that's all for tonight!

The power steering ECU gets its data via CAN from the ECM, so depending on how you're fooling the ECM into being happy, it may not be giving the power steering ECU what it needs. Actually, looking at it more closely - The power steering ECU gets the vehicle speed feed from the combination meter.