1991 Chevrolet Lumina "monitor streaking" Questions

..., have it put on a real time scanner, not a code reader, blue streak makes a good one, have someone monitor the engine activators and sensors, also hook up a furl pressure guage to ...

...selected except in FLOOR/DEFROST and DEFROST. The DATC module also includes: an EXT button to monitor ambient (outside) air temperature. By pressing the EXT button the ambient temperature will ...