1988 300E Fault Code Reading/Reset

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1988 300E Fault Code Reading/Reset

08-04-1999, 01:39 AM

E. Lee

Registered User

Join Date: Apr 1999

Location: Toronto, ON, Canada

Posts: 113

Hi,

I have a 1988 300E (Canadian Version, i.e. no switch/LED at the diagnostic plug next to the battery) and my car is losing power. Everything has been changed (spark plugs/wires, O2 sensor) etc....

Still, no improvement. I would like to be able to read what fault code (if any) has been set in the computer (and to reset them). I've read that I can build a LED counter (which uses pin 1 and 3), however, pin 3 on the diagnostic plug (next to the battery) doesn't have anything in it (it's just a hole)....the pins that are available are pin 1, 6 and 7.

Any advice would be greatly appreciated.

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