I have a chevy express 3500 box truck with 120k miles. just started acting up will go and then suddenly lost power. Then after a few minutes, it will go a lil further. I scanned it i told me general error 21000. What does this mean? where do I go next I need it fixed as soon as possible please help me thank YOU
21000. A diagnostic trouble code should stat out as "P" code which stand for Powertrain. ex, P0XX, P1XX, P2XX. General error is not a trouble code. Make a inspection of the MAF (mass airflow) air duct tube for proper connection A MAF that does not calculate the proper air intake can do this.
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