http://www.autozone.com/images/cds/g...3d800d0673.gif
This "intake control solenoid valve" is [i] unneccessary [ii] has a
resistance of 23ohm, receives 11.8, 11v & 3.3mv during driving
cranking & idle time, so wastes 0.513 0.478 amp & 0.143mA.
Users can remove this valve & its box, connect vacuum hose ( #8 )
directly to "intake control diaphragm", so more ampere will be
available for cranking / ignition / charging battery.
Engine will crank faster. If it has low resistance ( <200 ohm, mine
0.2 ohm) spark cables & plugs, then [i] torque ( mine by 8% ), idle
rpm & mpg will rise [ii] exhaust noise will drop ( mine by 8% )
[iii] idle rpm can be reduced ( mine to minimum : can now idle
stably w-o load @580 rpm ).
Users in warm climate can put a polystyrene tray ( mine 5¼ x 9¾"
) between radiator & overflow bottle, so hot air from radiator can
not reach air intake pipes' mouths.