2003 Nissan Micra K12 Starts fine from cold if turned off and started again will only reach 3000 revs andsounds like the choke is on

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Ken Giles
Fixes: 1
Problem added: Jul 27, 2020 (1 week ago)
will not run properly after starting second time ( start first time and is fine turn off engine and start again , engine revs go to 2000 rpm as if choke is on but even when foot to floor will not rev above 3000 rpm and has no pulling power will only go 20 miles per hour.

Car details
Car: Nissan Micra
Variant: K12
Model Year: 2003

Recalls: Nissan Micra Recalls
More: Nissan Micra Problems
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whittingehame
Fixes: 12,473
Jul 27, 2020 (1 week ago)
Could replace engine coolant temp sensor . If faulty it can send a false signal to the computer and throw off the fuel and timing calculations. This will cause the computer to think the engine is cold, even when it is not, and as a result will over richen to compensate . Could also check / clean MAF if not .
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Ken Giles
Fixes: 1
Jul 27, 2020 (1 week ago)
Replying to post by whittingehame:
Could replace engine coolant temp sensor . If faulty it can send a false signal to the computer and throw off the fuel and timing calculations. This will cause the computer to think the engine is cold, even when it is not, and as a result will over richen to compensate . Could also check / clean MAF if not .
Thank you for your rapid response I will try what you have said and it goes make sense when you think about it.
Thanks once again I will get back to you.
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