If a 4.3 Chevy backfires through the manifold will it damage it ECM or MAP sensor?
Why would this be happenin' then~?
Doubtful it would damage the ECM but the sensor could be damaged but it would take a few blows to do it, like the judge stated, WHY better find the real problem.
you beefin' up the TBI with one of these?~ https://www.google.com/#q=1995+Chevrolet+Blazer+carburetor&tbm=shop& spd=7229958470379806511
Looking for a Used Blazer in your area?
CarGurus has 842 nationwide Blazer listings starting at $950.
Search Chevrolet Blazer Questions
Chevrolet Blazer Experts