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Old 02-11-2002, 02:48 PM
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blackmercedes blackmercedes is offline
Just a guy
Join Date: Dec 2000
Location: St. Albert, Alberta, Canada
Posts: 3,492

You've sure covered all the usual suspects.

Checked the ignition system? Plug wires, ignition components?

Mass Airflow Sensor? Does it read a code on pre OBD-II cars? I don't know. Our Mazda did the EXACT same thing, and it was the MAS. Before you get shocked by the MB MAS price, I'll tell you that a new Maxda one for our 1988 626 was $1300. The dealer GAVE us a used one for nothing...

Vacuum leaks?

I'm at a loss. With new harness, OVP, and O2 sensors, this is a bit of a stumper...
John Shellenberg
1998 C230 "Black Betty" 240K

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