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Old 08-09-2003, 11:42 AM
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Join Date: Aug 2003
Posts: 1
Code P1700 1995 C280

I have a check engine light that the local parts store read as a P1700 - manufacturer specific. Can anyone tell me what the problem/ solution is?

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Old 08-11-2003, 07:59 AM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
MB uses transmission up-shift delay to warm-up the catalytic converter. That car must hold the first 2-3 shift until 30MPH or after 2 days the CE light will come on & you will get P1-700. The kickdown cable has a vacuum element to lenghten the cable when the engine is cold & the car is getting ready to shift. There is also a vacuum switch-over valve that controls(EFI computer) the timing of the delay. Vacuum loss(leak) is usually the problem.
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