Long Cranking Problem, Hard to start..
Member
Joined: Mar 2005
Posts: 91
Likes: 0
Still having cold start issue where I believe car is flooding, remove fuel pump fuse and it fires right up. I have replaced the following:
1. MAF
2. Fuel Filter
3. EGR Valve
4. Fuel Injectors
5. Cleaned throttle body with Seafoam
6. Temp Sensor
At a loss, I have a cheap OBDII reader, no codes, no CEL, all seems good. Thoughts?
1. MAF
2. Fuel Filter
3. EGR Valve
4. Fuel Injectors
5. Cleaned throttle body with Seafoam
6. Temp Sensor
At a loss, I have a cheap OBDII reader, no codes, no CEL, all seems good. Thoughts?
Member
Joined: May 2021
Posts: 121
Likes: 22
From: Melbourne, Vic, Australia
C230K M271 CL203 2003 model
Double check all your sensors!.. I once had a car that had this exact issue, it turned out to be corrosion on the terminals of the coolant temp sensor.. causing a high resistance value, interpreted by the ECU as a -20'C temp below zero! Causing the engine to flood!, the only way i could get it to run was by turning off the fuel pump..
Member
Joined: Mar 2005
Posts: 91
Likes: 0
OK, I have an OBDII reader that does live data, I don't see any issues with temperatures the sensors read. I do see the TPS reading is about 8% with ignition on, then will drop to 3-4% while idling after I get it to start.
Newbie
Joined: Mar 2022
Posts: 2
Likes: 0
2004 E55 Amg
any updates on your issue? Have a car doing exact same and it’s driving me nuts that cant figure it out
Member
Joined: Mar 2005
Posts: 91
Likes: 0
No update, still haven't found issue, it's cold again so I'll be pulling the fuse to start. Here's another thread of same issue, but really nothing new.
https://mbworld.org/forums/c-class-w...when-cold.html
https://mbworld.org/forums/c-class-w...when-cold.html
Newbie
Joined: Mar 2022
Posts: 2
Likes: 0
2004 E55 Amg
No update, still haven't found issue, it's cold again so I'll be pulling the fuse to start. Here's another thread of same issue, but really nothing new.
https://mbworld.org/forums/c-class-w...when-cold.html
https://mbworld.org/forums/c-class-w...when-cold.html
Member
Joined: Mar 2005
Posts: 91
Likes: 0
this guy supposibly found the fix https://www.benzworld.org/threads/ca...-cold.1823802/
