Question about Chevrolet Blazer
Replace the ECU and try again also try and change the plug on the injector it may be the cause.
However injector wiring is pretty easy, you have; usually yellow wire (+) and (-) which goes to the ecu.
injector power wires will all join together usually at the end of the harness, along with o2, iacv,and some others.
so, you have the probably the bellow causes....
ecu , wiring from ecu to that injector, injector plug, injector,positive side of the wiring to the distribution block.
with engine on disconnect injector and measure for power using the battery as a ground, if you get voltage then the problem is in the (-) circuit, injector or ecu. test - wire for shorts and cuts, you might even have to take the harness apart if nothing else works.
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Posted on Apr 27, 2010
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Posted on Jan 02, 2017
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