Motronic & auxiliary air valve

[JCsDOOR at aol.com]

 Motronic iac valve =pin 1 to pin2 =12 ohm, 2 to 3 12 ohm also. expect to see 
100 hz pwm  around Five to seven volts at idle
 The iac valve has doulbe windings power is supplyed  by main relay. Control
is by a 100 hz.pwm signal via pin 1 and 3 ,the longer pin 3 is grounded  the
more the valve is open .the longer pin 1 is grounded the more the valve is
closed.. if you need more help  e mail me at JCsDOOR@ aol.com.

hope i have helped
 jim crance