engine management light

[K-eleven]

was driving my Micra K11 1.0 2001, on the motorway for the first time after 3 years of owning it.
1, the engine management light has come on .

2, it struggles after it reaches 60mph, just had a new clutch fitted.

3, ive had the 15" alloys all weight tested, the car still moves left and right when let go of the steering.

 

[sleeper_ss]

clutch is unrelated to management problem..
& the car may need the tracking doing if its pulling over.Cars do tend to follow the camber of the road tho,specially if you have low profiles.Check your tyres & see if you have uneven wear or scrubbing,indicates tracking out.
Someone clever will hopefully come along & tell you how to analyse the management issue.You could try disconnecting the battery for a while,might clear it

 

[frank]

perhaps a sensor has been knocked when the clutch was changed, or a wire trapped ?

 

[Warpa]

Could be any number of things from what i read here and on the web, MAF may have packed up, throttle body may be playing up or as frank said on the clutch change something may have been knocked. Find a mate with an OBD reader and see what the code is, or pop in to a small local garage and bung them a drink by pulling the ignorant card and getting them to read it...will take them 2 mins.