Miffy
Senior Member
- Joined
- Sep 6, 2008
- Messages
- 7,356
- Reaction score
- 4
- Location
- Bromley, London
- Your Mercedes
- CLK 320 CAB Elegance C208
Hi, today my Engine Check lit up and the car started to drive quite lumpy. I connected my OBD II reader and it showed Cylinder 1 Misfire.
After clearing the errors, I restarted and monitored the real time values
before the error
Fuel Sys1 = CL
Fuel Sys2 = CL
after the error
Fuel Sys1 = OL Fault
Fuel Sys2 = OL Fault
I disconnected the MAF (but a faulty MAF wont affect 1 cylinder?) The scanner confirmed the new errors of the MAF showing a low air volume, and the Rad FAN went on Permenent.
I have cleared the errors many times, and left it with the battery disconnected but the faults show within a min of starting the engine, and its clear its running lumpy.
A few other points need looking at also, the ODB reports engine temps of 82c but the guage in the car shows less than 70c . The MAF was reporting 4.89 g/s is this the correct value?
After clearing the errors, I restarted and monitored the real time values
before the error
Fuel Sys1 = CL
Fuel Sys2 = CL
after the error
Fuel Sys1 = OL Fault
Fuel Sys2 = OL Fault
I disconnected the MAF (but a faulty MAF wont affect 1 cylinder?) The scanner confirmed the new errors of the MAF showing a low air volume, and the Rad FAN went on Permenent.
I have cleared the errors many times, and left it with the battery disconnected but the faults show within a min of starting the engine, and its clear its running lumpy.
A few other points need looking at also, the ODB reports engine temps of 82c but the guage in the car shows less than 70c . The MAF was reporting 4.89 g/s is this the correct value?