Generation 1 , ISC , idle air valve.

1989/90 ISC solenoid air valve. off the left side of the Throttle body TB. photos from a contributor...

the gaskets.

see air ports here.

the back side can be removed.

to see the factory calibration screw, that can be re-adjusted to get rid of wear induced air leaks.

trying to make a new gasket was sucessful. Or if you are doing air leaks tests , i make a solid gasket for here and then run my tests. seen on the page you just came off of........

the only correct way to make the gasket. or SOLID for tests.

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