A freind has a 1993 with a 350 w/a 4l60e trans. It started to idle high, shift hard and stall sometimes. He chainged the iac, and tps but did not work. I hooked up my scanner and it would not connect. all fuses are good. Any idea's to look for.
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WHAT scan tool did you use? Is is supposed to work with a '93? Have you used it on other OBD-1 vehicles successfully?A freind has a 1993 with a 350 w/a 4l60e trans. It started to idle high, shift hard and stall sometimes. He chainged the iac, and tps but did not work. I hooked up my scanner and it would not connect. all fuses are good. Any idea's to look for.
Best is to get scanner to work. Without any scan data first thing I’d do is check fuel pressure, check or replace CTS, and clean all the grounds, especially one at CTS as I think it’s ground for PCMA freind has a 1993 with a 350 w/a 4l60e trans. It started to idle high, shift hard and stall sometimes. He chainged the iac, and tps but did not work. I hooked up my scanner and it would not connect. all fuses are good. Any idea's to look for.