- Engine Light ON (or Service Engine Soon Warning Light)
P1274 Gmc DescriptionInjectors Wired Incorrectly is the generic description for the P1274 Gmc code, but the manufacturer may have a different description. Currently we have no further information abouth the P1274 Gmc OBDII code. Please post your question on our "Questions" section for more information: AutoCodes.com Questions.
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P1274 GMC CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P1274 Gmc code? Have you replaced any parts?
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