Engine light on code p261f coolant pump a control circuit stuck on 2015 mercedes sprinter 2500 no stall auto answered by a verified mercedes mechanic. Trouble codes p20fa p208a p203a p0299 p261f fix find an easy way to fix these codes checking the vacuum system i do this on a sprinter van. P261f code description the poor running symptoms are consistent with a map sensor malfunction in addition in some cases a bad map sensor will not throw a code again the eld code likely represents a separate wiring issue when you see p261f engine fault code on your engine code reader this description will help you. P261f iso sae reserved we recommend torque pro bat team discussions for p261f need to fix p261f code on my sprinter does anyone know hot fix it 0 reply vic 2 years ago this code means the stepper motor need to be replaced usually located near the accelerator pedal above it to the right a pain in the neck to get to it 0. 2016 mercedes benz sprinter 2500 21l 651955 7 spd 7229 wd3pe7dd3gp261131 p261f 71 check engine light we have this sprinter with no drivability problem we have alldata only reference is a tsb i used a vacuum pump on the water pump flap multiple times the code hasnt returned