need help with sluggish 420SEL

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need help with sluggish 420SEL

07-10-2003, 09:47 AM

jkearns

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need help with sluggish 420SEL

I have a 1987 420SEL, 83K, that is idleing rough and stuttering/stalling on accel from a stop. Fuel pressure is a steady 90 psi. Compression is good. I have replaced distcap/rotor/wires and plugs, but no improvement. Once it gets going, it's perfect. Any hints or ideas would be appreciated.

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