7mge Stalls immediately after starting

[jfreeman]

Hello, I'm new here. I just got a '90 Supra and can't figure out this problem it's driving me crazy.

As soon as I start the car it immediately stalls... I've replaced the MassAirFlow sensor, throttle body gasket, quadrupled checked for vacuum leaks, and still i cannot find the culprit.

If I hold the MAF sensor valve open it will stay running but as soon as I let it close the car will stall.

What could this be?

Thanks- Justin

 

[hvyman]

Check for codes and the idle speed control valve.

 

[jfreeman]

Where will I find the ISC?

Thanks

 

[shaeff]

Where will I find the ISC?

Thanks

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=FI&P=106