Hi, can anyone help with this ...
My 7 is a standard CSR 260 with the Duratec 2.3 and MBE992B ECU.
Under full acceleration I get a very occasional 'cough' or 'hesitation' from the engine. It doesn't really feel like a misfire on single cylinder, more like a short loss of power across all 4 for perhaps half a second.
Other than this annoyance, it runs fine. It's been on a rolling road for setup / remap with 2 Steves and no issues with the power.
It's done this for the 3yrs I've had the car, but as it's been a rare occurrence, I've adopted a 'wait and see' approach. It now seems to be getting slowly worse, so I probably need to find out what it is before I get stranded ...
My hunch is that it's fuel related, given that it seems to be hitting all cylinders at the same time (but can't be sure about that either).
A few things I've tried:
- replacing the fuel filter
- cleaning various connectors including water sender, ECU and MFR (mentioned in other posts)
- I only run it on V-Power
Any suggestions very welcome.