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95 GMC K1500 5.7 runs rich. Tried all options
1995 GMC K1500 5.7 running rich. I’ve verified all sensors and wiring. Had a vacuum leak under the intake which has been fixed along with new spark plugs. The only sensor that doesn’t check out is MAP. Have 21-22 inches of vacuum at idle and I’m getting a little over 3 volts out of the MAP...- M95z71
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- Forum: Engine Performance + Maintenance
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kennythewelderOfficially Retired, B31-3 (6-G) certified welder.
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