Does anyone know what the "throttle opener" on a 1995 Camry V6 automatic transmission 1MZFE engine does or how it works?
What I can see:
There is a vacuum diaphragm located underneath the throttle position sensor. The diaphragm is connected via a vacuum line to the throttle body. The diaphragm has a little piston sticking out f it. As the piston retracts, there is a contacting arm along the outer diameter of the throttle position sensor housing that, I guess, should turn. This arm seems to link via a shaft through the throttle body itself, and connects over to the other side, into the linkage where the throttle cable and shifter cable are attached.
I can't find anything on this in Haynes.
The thing I find odd, is that the contacting arm doesn't seem to turn a whole lot. The piston in the diaphragm will retract, and you'd think the contacting arm would follow it, but the arm travels about 1/8" or less and just stops. The piston in the diaphragm just keeps on retracting...
Is this normal behavior?
Thank you