W124 throttle body test
Thread Starter
Newbie
Joined: Jun 2022
Posts: 7
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C124
Buzzed all the connections out and they seem ok. The servo works fine on the bench, micro switch is good and the pots are smooth.
The symptoms are: Starts fine but rough with 700rpm in P; rpm drop to 400 when put in gear; very hesitant until 1800rpm then sweet.
Any thoughts of where to look next or shall I take to a workshop?! G
The symptoms are: Starts fine but rough with 700rpm in P; rpm drop to 400 when put in gear; very hesitant until 1800rpm then sweet.
Any thoughts of where to look next or shall I take to a workshop?! G
Thread Starter
Newbie
Joined: Jun 2022
Posts: 7
Likes: 0
C124
Ok I bought an OBD1 tester. My 1994 E220 WDB1240422C1264 doesn’t seem to be listed but pin 8 is giving me error code 6 and 8. I can clear them but they come back if i switch off and on again. HFM sequential Multiport fuel injection says error 6 is unused and error 8 is limp home.
I have replaced the Over voltage relay and have a mass air sensor on order. Runs very lumpy until 2000rpm
Anyone any thoughts what i should do next?
I have replaced the Over voltage relay and have a mass air sensor on order. Runs very lumpy until 2000rpm
Anyone any thoughts what i should do next?
