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Re: p0420/p0430
Posted to Technical Discussion Forum on 4/29/2023 9 Replies


No explanation but to be honest with you I didn't believe him at first and kept using 93. When the Tahoe had about 10K miles on it I went on a trip from DC to Indy and along the way for some reason all of the stations were out of everything but 87. So... Login to read more.

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