what diagnostics have been carried out?
Hi Steve. Thanks for your response. I have had car on diagnostic m/c twice, but according to the garage the results not conclusive. They thought might have been old and degraded oil and possibly bad filtering. They cleaned and replaced filter and flushed, three times, the box which cost me £636 due to the cost of fluid. That worked for about a week, then it went again and they decided to clean out EGR valve. Ran alright for about another week but problem reoccurred. If I drive car very steadily, no forceful or normal acceleration, it seems okay, although still runs 'lumpy' with revs fluctuating of own accord. If I accelerate, say away from lights or a junction as you would normally do, the light comes on and 'limp mode' initiates. If I stop, turn off ignition for say 5 mins and start again, it is okay and no light or limp mode.
Hope this helps.
what codes are being read out when the transmsission is being diagnosed?
to be clear, it is transmission limp mode?