Re: Motor Control System Failure on my 156 2.4jtd
Bought same model and year myself and have the same problem.
Garage where I bought it claimed it had already had the MAF sensor replaced. They replaced a turbo valve, however, a few days later it started happening again - also get a loss of power, ease off accelerator and everything returns to normal.
I was hoping to find the answer here myself, my guess is it is an electrics problem or a related component.
Might be wrong but I doubt it is the glow plugs, I thought they only come into action to pre-warm the combustion chamber for starting the engine, so I would suggest another garage.