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Inside the dashboard, to the right of the glove box.
Behind the passenger side kick panel.
Under the hood, on top of the passenger side inner fender.
The ECM on a 1992 S10 Blazer is located below the glove box.
We need to know what year the S10 is, it matters.
Behind the passenger side kick panel.
The ecm module is located behind the passenger side kick panel. I don't know of an ecm relay.
I have a 1988 chevy s10 pickup 2.8. I went to the service department at my local chevy dealership and they printed out 3 diagrams for me for free.
hei ignition or edi ignition
under the dash
I have a 1988 s-15 with the same peoblem. Ignition Manifold Air Temperature switch appears to be bad. Don.
The one for the ecm is located next to the thermostat housing. The one for the gauge should be located between #3 and #5 spark plug on drivers side.