Question about 1997 Toyota Tacoma

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My 1197 tacoma 4 cylinder automatic w transmission has little power. I have tuned it up with some increase in power but not much, I average 23 mpg. what can I do to increase power?

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You could put in a turbo or increase air flow.
You could buy an aftermarket ecu which is tuned for performance.
You could also get a machinist to make the cylinder bores bigger and put in bigger pistons etc but this may be expensive.
Or replace the engine.

Posted on Mar 13, 2011


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There are many things that could conspire to rob mileage. My first thought was possible transmission slippage. Although your city rating is horrible, the highway mileage is just a little off. 23-25 hwy is correct, 23 for lousy doped California gas, and 25 elsewhere. My guess is that you have slippage but above 45 mph, you are still getting advantage once the converter lock takes effect in overdrive. Just slippage until you reach that lock point.
Start with a full diagnostic of all stored codes in the ODB II computer, both for the engine and the transmission, then an evaluation of your transmission from a good shop.
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Whats my average mpg?

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