Question about 1993 Chevrolet S-10 Blazer
Van wont start replaced plugs,wires,cap,rotor,fuel pump,fuel filter,coil,air filter & distributor module. ECM diagnostics return code 12 (default).
Help please! This is baffling.
More than likely it's the distributor. They have a tendency to build up corrosion and rust and have personally went through the same situation three weeks ago on a suburban. Check to see if you are getting spark from the distributor first. Have the ecm in the distributor checked at Oriellys for free. It's under the rotor and has two 8mm head bolts with wires plugged in at each end.
Posted on Jun 22, 2008
Check the power wire to the cap, and that the wire is hot in run / start. Might be a fuse or other problem not getting voltage to the distributor. If you do not have voltage but the fuse is good you might pull the fuse block down and look for corrosion where the wires plug into the back. Another thought, check that there is a good connection from the battery negative to the chassis. That can leave you with some strange problems. Larry A.
Posted on Sep 25, 2008
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Posted on Jan 02, 2017
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