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GM 3400 spark plug deposit
Posted to Technical Discussion Forum on 7/31/2005 18 Replies

A '98 Venture 3400cc came in for the MIL on. It had codes for the TPS range, a trans slip code and a P0300. The 3 freeze frames showed fuel trims neutral. Misfires were totaly on # 6. Scope showed a low burn line on 6. Here is what the plug looks like, and her... Login to read more.

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