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Nissan Micra cold start

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Need some ideas.... My 2019 Micra is having occasional cold start problems. Here is what happens... sometimes, engine just spins, so far on 2nd or 3rd try it has always started. No engine check light, engine easily spins (so probably not the battery) doesn't seem to correlate to the coldest days... just every so often needs a couple of tries to start. Once it starts, it runs perfectly and about as smoothly as one could expect from a 3 cylinder engine.

I am going to start by replacing the spark plugs - mostly because at 85,000km if they are copper it is about time (pain in the neck need to pull the intake manifold to get to the spark plugs...)
But looking for better "educated guesses"
Yisrael
 
Hi Yisroel - is the fuel pump pumping? Let it sit overnight to cool off. Maybe in the early morning when your neighborhood is quiet, turn the key and see if you hear it doing its job.

In the years since 2019, an electrical connection may have worked loose ...
Tom M.
 
NutmegCT said:
Hi Yisroel - is the fuel pump pumping? Let it sit overnight to cool off. Maybe in the early morning when your neighborhood is quiet, turn the key and see if you hear it doing its job.

In the years since 2019, an electrical connection may have worked loose ...
Tom M.
Click to expand...
Well 4 cycle so suck squeeze bang blow.. the suck and squeeze seem to be ok... so that really just leaves the spark and gas (of course there are a bunch of confusers complicating stuff. but I also think (but could be totally imagining this) that there is a smell of gas in the exhaust when it starts up.. As annoying as it is to pull off the intake to find the spark plugs... getting to the gas pump and filter is worse... the plugs probably should be changed anyway. In any case from in the car I can't hear the pump, I guess I will just have to stick my head under the car and have someone turn the key on.
 
Nothing is simple! (But hearing the tick tick tick of an SU fuel pump is easy ...)
 
Went to change plugs this morning.... and discovered that the plugs for this car are a different size than any of the 4 different spark plug sockets I own:mad:.... oh well back to the store. Fortunately I looked before I pulled the intake off to get to the plugs.
 
For want of a nail, the shoe was lost ...

Hang in there - eliminating the non-problems is a step in the right direction. I'm still thinking the fuel pump might be the cause of the "won't start" problem.
 
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