emission failure

1995 CHEVROLET BERETTA
212,000 MILES • 6 CYL • FWD • AUTOMATIC
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RONSKI
  • MEMBER
  • 3 POSTS
95 chevy beretta failed hc emission replaced cat.,
oxygen sencer, keep having to add antifreeze,does need muffler, it's not real bad. The co, and nox did pass what's up? Did add alcohol to gas butt realy don't think it that!
May 21, 2011 at 9:18 PM
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WRENCHTECH
  • ✓ASE Certified Mechanic
  • 20,761 POSTS
  • ASE Certified Mechanic
You need to stop the home remedies. You're not helping yourself. HC is best described as "unburned" fuel. That means the fuel is not burning completely for one reason or another. It's usually a misfire type thing that you are looking for. If you're consuming coolant, it could have something to do with your problem if the engine is burning it. That engine is also notorious for intake manifold gaskets leaking coolant and/or vacuum.
May 21, 2011 at 9:56 PM
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