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Full-Load Enrichment

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  1. Disconnect throttle valve switch connector. Check resistance of throttle valve switch. In idle speed position, resistance should be infinity. In full load position (wide open throttle), resistance should be zero ohms. If readings are not correct, adjust or replace throttle valve switch. If readings are correct, go to next step.
  2. For further testing procedures, see Test Step No. 4 (6-cyl.) and see Test Step No. 3 (V8) in the TESTS W/CODES article in this section.
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