S-10 Fault Codes

2010 CHEVROLET S-10
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PLOTNERFAMILY
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1987 Chevy S-10 2.8L 6cyl 4x4 Getting Fault codes of 33 and 45. There was info gearing toward the MAF sensor but I do not think my truck has one please help I cannot find anything in Chiltons to verify?
Nov 11, 2007 at 9:33 AM
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MERLIN2021
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33= Mass air flow or MAP sensor voltage high...
45= Left 02 sensor reading rich How the air filter? If you have a MAF it's located in the airway to the TBI.
Nov 11, 2007 at 9:50 AM