Our 1997 E300D just set OBD-II code P0120. Generically speaking, this is a throttle position sensor code. I guess that I didn't realize that this is a "fly by wire car". There had been some complaints of "surging". Oddly enough, the surging quit after the code was set. Can one of you Master Technicians please lend me some advice? Is this something I could fix or replace? Or is this generic code misleading? I like this car, and want to keep it. It's delivering 31 mpg in mostly city driving.

Thanks in advance for any and all help.

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StevenB
2005 Mercedes Benz E320 CDI
1998 Dodge 3500 Laramie Quad-Cab Dually - 12 valve Cummins.
1996 Honda Goldwing SE.
1997 GMC Suburban SLT