MAF issues

Gadge

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Nov 19, 2023
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Your Mercedes
Mercedes 220 cdi w203
Hi folks
I have replaced the turbo plus vacuum pipe, Egr , accelerator pedal , and Maf .
I’m still having issues, when I unplug the maf the car drives well if I plug it back in it just judders throughout the rev range at low speeds and high speeds. I’ve tested the current on the sensor and from the ecu at the connector all seems good.. am I missing something or where else should I be looking
Any advice would be greatly appreciated
It’s a 2004 c220 diesel
Many thanks Gary
 

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