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pletevl · 26th March 2019, 13:22

So, new leads on and it's almost perfect, except first thing in the morning, or after a cold start. I start the car, it purrs for a minute or so and then gradually starts to chug a bit and missfire and the exhaust smells a bit rich, drive it gently and it's OK, floor it and it is still missfiring under load at low revs but not as before. Past 2500 rpm and there is no missfire that I can sense.
Once the engine is up to temperature, it's fine, no missfifirng anywhere, low revs under load etc.
Any ideas people ????

It's had:
New plugs and leads.
New coolant temp sensors, Both of them.

Pete.

26th March 2019, 13:22	#7
pletevl Posted a thing or two rover 75 cdti(rhd), MG ZR(lhd), MG TF(lhd), MG TF(rhd), mini mpi (lhd), Renault megane III (awful) Join Date: Mar 2014 Location: East of France Posts: 1,282 Thanks: 124 Thanked 114 Times in 93 Posts	So, new leads on and it's almost perfect, except first thing in the morning, or after a cold start. I start the car, it purrs for a minute or so and then gradually starts to chug a bit and missfire and the exhaust smells a bit rich, drive it gently and it's OK, floor it and it is still missfiring under load at low revs but not as before. Past 2500 rpm and there is no missfire that I can sense. Once the engine is up to temperature, it's fine, no missfifirng anywhere, low revs under load etc. Any ideas people ???? It's had: New plugs and leads. New coolant temp sensors, Both of them. Pete.