E320 (w124?) trouble codes

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E320 (w124?) trouble codes

12-30-2002, 06:44 PM

BAVBMW

Senior Member

Join Date: Dec 2002

Location: Visalia, CA

Posts: 379

E320 (w124?) trouble codes

I'm having trouble with a DM code 26, my scanner says cat effectiveness, but my other searches say upshift delay. Where should i be looking? And how can the cat converter effectiveness be monitored with out an after cat O2 sensor? any help would be appreciated. thanks.

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