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I have a toyota vios 2003. When I accelerate my car(when driving at certain speed say 20km/h it accelerates lets say up to 60km/h but when I take my foot off from acceleration paddle rpm drops very quickly(~1000 which is normally the rpm when idle) and feels loosing the speed abruptly. I remember this was not like before. I recently replaced fuel filter and fuel pressure pump. Is this normal or indicates a problem?

Michele1
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1 Answers1

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It appears to be throttle body calibration issue. I did a engine tuneup recently and cleaned up throttle body for carbon residue. After calibrating throttle body sudden rpm drops has not been observed so far at least in test drive..

Michele1
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