Nissan Micra starts fine from cold if turned off and started again will only reach 3000 revs andsounds like the choke is on
Variant: K12
Model Year: 2003
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.
Posted: Jul 27, 2020 (4 years 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 .
Posted Jul 27, 2020 (4 years 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.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 .
Thanks once again I will get back to you.
Posted Jul 27, 2020 (4 years ago)
I have changed the engine temp sensor , but it is still the same so my next move is to try the MAF . when it is running it is using much more fuel than normal .
Posted Aug 12, 2020 (4 years ago)
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