fueling problem

[CMF_k-44]

My micra 1.0L manual has been suffering issues with cutting out when the clutch is depressed i.e. when going to idle. The engine runs very roughly and often cuts. When driving, a similar problem intermittently occurs with very rough running and very poor fuel economy. When at a standstill, the exhaust smells very rich with unburnt fuel. I have done all the usual bits, i.e. changed plugs, filters etc. to no avail. The self diagnostic test appears not to function on this car. Any thoughts? Many thanks. k-44

 

[CMF_frank2]

k44

erratic idle usually points to a throttle body problem (see guide on here)
failing that, lamda sensor ?
whats the problem with the diagnostic btw ?

frank

 

[CMF_k-44]

I got new lamba sensor.

I dont know how to start the diagnostic test on this 1993 model

 

[CMF_frank2]

k44

some info here
http://www.micra.org.uk/showthread.php?t=20673&highlight=diagnostic