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Old 12-20-2009, 05:50 PM   #20 (permalink)
gone-ot
...beats walking...
 
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Quote:
Originally Posted by Allch Chcar View Post
Old Tele man, unless you increased the fuel flow I'll bet it lost power running lean. But how do you figure it lost power?
...are you aware of the differences between the Toyota 1ZZ, 2ZZ and 2ZR engines? The 1ZZ and 2ZR are normally aspirated while the 2ZZ is supercharged. And, although the 1ZZ and 2ZR are similiar, they have totally different fuel systems, the 2ZR uses Direct Injection Spark Ignition (DISI), not multi-port injection as the 1ZZ and 2ZZ use.

...the 2ZR engine in my '09 Vibe is neither supercharged nor turbocharged, so it cannot 'benefit' from alcohol and its higher octane number (as I stated before). And, I don't believe the Toyota/GM ECU has ever been calibrated to operate in flex-fuel mode (needs different sensors too).

...as for, "...how do you figure it lost power?"--it's simple. There's a 200-foot hill I drive at 40 mph with cruise-control engaged every afternoon going home from work...when the car had to downshift on E85, where it didn't before, that's a 'de facto' loss of power by my 'seat-of-the-pants' sliderule calculations (all else being essentially identical).

...to parody Ceaser's quote: VENI, VEDI, VICI...I saw, I tried, I dislikey!


YMMV...obviously.

Last edited by gone-ot; 12-20-2009 at 06:00 PM..
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