Search results

  1. eicca

    1UZ VVTI High Idle Issue

    The fact that the timing jumps right to 35 degrees advance tells me the ECU thinks the throttle is open for some reason. When in neutral the normal behavior is to advance timing up to 45 degrees at 2500rpm and hold it there all the way to redline. Can you read live throttle position and...
  2. eicca

    Restore lost power 1uzfe vvti

    My 1UZ did not convince me it was a V8 when I bought it. So I: Fixed all vacuum leaks. Fixed the ACIS solenoid. Cleaned the throttle body real good. Installed new fuel injectors. Cleaned the MAF. Turned up the pressure dial on the transmission to firm up the shifts. Put a Tundra...
  3. eicca

    Momentary crappy idle on cold start?

    1998 GS400, 206k miles. When I start my car first thing in the morning, it'll fire up right away, settle at 1200rpm for a second, then slowly dip to around 1000-900 and stay there for about five seconds before returning to 1200. Every so often, usually when it's colder, it'll start up and then...
  4. eicca

    A650e feels very weak

    There was definitely crap on the magnets, but nothing worse than the average transmission maintenance YouTube video. No big flakes or chunks or anything. I had it WOT at 100mph a few days ago and the 3-4 upshift was nice and firm. Got a good shift shock out of it, way stronger than 1-2 or 2-3...
  5. eicca

    Need trans help: bad clutch, leaky solenoid, or pressure too low?

    1998 GS400, 205K miles, original drivetrain. No trouble codes. Trans fluid was pretty dark when I bought it, so I flushed it all out through the cooler lines. I also dropped the pan and turned the pressure dial to max. So I’m still trying to figure out why my 1-2 upshift and 2-1 downshift are...
  6. eicca

    A650e feels very weak

    1998 GS400. Even with the pressure dial all the way up, I can barely feel the gear changes at any level of throttle. I drove two other GS4s which likely didn’t have the pressure dial turned up, and they change gears much more solidly. My fluid is all fresh, but when I first had the car is...
  7. eicca

    2UZ plastic intake successfully installed on GS400

    PCV is Positive Crank Ventilation. It's easier to just leave it as is and make sure it's not leaking.
  8. eicca

    2UZ plastic intake successfully installed on GS400

    UPDATE!! Turns out the vacuum hose I used on the PCV when doing the swap was not rated for oil and it basically melted. So since this was installed I've had a decently fat vacuum leak that I didn't know about until just a few days ago when I hooked up my scan tool. So I replaced that hose and...
  9. eicca

    2UZ plastic intake successfully installed on GS400

    You will have to combine fuel rail pipes so keep both sets. The 3UZ injectors are shaped differently than the 2UZ injectors and won’t fit in the 2UZ manifold.
  10. eicca

    Are all V8 A650E transmissions the same?

    Thanks for the info
  11. eicca

    Are all V8 A650E transmissions the same?

    I've searched, and so far I've come up with the following conclusions: The A650e from the GS400 has a different valve body tune than the one in the 300 to manage the extra power. The 400 A650e will work fine in a 300, but the opposite may not be true. The shift position sensor is specific to...
  12. eicca

    2UZ plastic intake successfully installed on GS400

    It would be about the same process, just a little easier not having to mount a throttle cable.
  13. eicca

    2UZ plastic intake successfully installed on GS400

    I’ll throw in a little update after some highway driving yesterday: I seem to be lighter on the throttle to maintain the same cruising speed. I’ll have to do a long-term MPG test.
  14. eicca

    2UZ plastic intake successfully installed on GS400

    So my ACIS solenoid died, and the intake manifold had to come off... So I figured, why not buy the plastic 2UZ intake from badblackgs and see what happens when I install it? From his experiments with it, he noticed a decent increase in torque. Plus the plastic keeps the air temperature down and...
  15. eicca

    Lexus IS250 to 3UZ-FE (completed)

    Way to channel the old Rod Millen IS430 spirit! Killer job.
  16. eicca

    My power curve ain't right ('98 1UZ VVTi)

    So today I discovered that our 1999 2UZ sort of does this too. In first gear, under maybe 30-40% throttle, I can feel a sudden power jump right at 3000rpm. Most noticeable in first gear. Not as significant as my 1UZ, but noticeable. Since this engine has no VVTi or ACIS, what might be the...
  17. eicca

    My power curve ain't right ('98 1UZ VVTi)

    So while I’m acquiring all the parts to install the Tundra intake, I used wire to tie the ACIS into the closed position. The difference in torque is noticeable. Much more eager to move. HOWEVER, I still get the power surge right at 3700rpm! I’m not sure what to look at now. Is this an indication...
  18. eicca

    2UZ plastic intake on 1UZ-VVTi

    Update: Getting the intake to bolt on requires just removing a small amount of plastic around the bolt hole closest to the driver. Then, you use the 1UZ fuel rail with injectors from a 98-02 2UZ and they’ll plug right in. Then you have to flip the throttle cable bracket upside down and bolt it...
  19. eicca

    2005+ 2UZ plastic intake manifold

    Like the title says, I have the black plastic intake manifold for all 2005 and up 2UZ engines. It will also bolt right on to the 3UZ, and I have injectors that are plug and play with the 2000-2002 3UZ harness. To make it work on a 3UZ the holes on the throttle body just have to be filed out a...
  20. eicca

    My power curve ain't right ('98 1UZ VVTi)

    If I remember right, the reservoir doesn't actually fit under the Tundra intake manifold, and I've got a free bolt hole where my intake tube resonator used to be. So it's easy and if there's some kind of problem after installing I don't have to rip the manifold off again.
Top