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oldcorollas
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Kita-Ku, Sapporo, Japan
Registered:
January 2003

Re: 3TGTE - Power/fuel difference with tune up	Wed, 12 May 2004 15:47

running a turbo car on TPS only is a time bomb... basically, the ECU doesn't know how much boost there is, it only knows throttle position.... chances are it was tuned stupidly rich, so that it doesn't blow up in your face. there is only one tune for a car.. a good tune this will be rich for power, and maybe a little lean for cruise... this whole idea about having dual fuel maps for economy and power is daft. with a "good tune" you will use the right amount of fuel for power, and the right amount of fuel for cruising.. if you use more fuel, it's tuned badly and is too rich. if you use less fuel, it is running too lean and could die a horrible death anyhoo, running on MAP will hopefully result in your motor lasting longer.... even NA cars do not like alpha-N only.. it is usually used for motors with large cams where they will not be driven gently... ie race cars, where most time is spent WOT... even then, TPS for low speed and MAP for higher rpm is often better.. just a few thoughts.. Cya, Stewart [Report message to a moderator]

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