'03 Toyota Corolla 1,4 VVT-i 4ZZ engine idle rpm too low, shaking. How can be adjusted?
Idle is factory set and cannot be adjusted, your best bet is checking for cracked hose pipework for air intake at idle,(not at problem under exceleration and driving) Any slight upset to the air /fuel ratio will be most prevelent at idle speeds.Check hoses where the meet metal flanges on manifold intakes and any sharp bends in ppipes.Good luck
Try Redex injector in your next tank of fuel usually stops bad idling at least you eliminate a fuel problem? (this solved my idling)
Or possibly a faulty mass air flow sensor? (which was the problem on my partners micra)
I have the previous model of Toyota corolla 1.4 vvti, hope this simple solutions helps if your still having problems?
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Check your idle speed control valve situated at the bottom of the throttle body. Sometimes the valve sticks and will make the engine rev high or low at idle and the ECU can't adjust it properly.
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07 Isuzu i290
engine idling up and down at low rpm
07 Isuzu i-290
engine idling up and down at low rpm
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