Question: 2002 duramax codes

Dawg76

New member
Mar 10, 2013
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These codes come right back after I reset them with a snap-on computer the codes are P1621 PCM EEPROM MEMORY PERFORMANCE, P1094 FUEL RAIL LOW WHEEL IDLE OR FUEL CUT, P1093 FUEL PRESSURE LOW WHILE POWER ENRICH, P0234 TURBO CHARGED ENGINE OVER BOOST CONDITION. How can these codes be fixed or what needs to be tested or replaced

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