1994 s10 blazer
#1
1994 s10 blazer
Truck has about 110,000 miles on it. I did the "field test" with the ecm to see if its in closed loop or open, and I was wondering what does it mean when the light stays lit for about 3 seconds? It flashes fast when I first start it and slows down as it warms up, but sometimes it says lit. Thank you.
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