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88 Mercedes 420SEL misfire off idle/ under load
Posted to Technical Discussion Forum on 2/20/2004 3 Replies

I'm working on this 88 MBZ 420SEL. When hot, & under heavy accel from a stop, it intermintently misfires/hesitates/sometime backfire at around 1200 rpm only. If the car is moving, acceleration is perfect. Idles perfect, & drives great otherwise.

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