Starts once then won't for a while. Left cold repeat

[hezzy]

Micra 2005 - 1.2

Please can you help me since getting this far for a 1st timer (17 year old) it's not started first time that was fixed with a new ignition switch and some wiring issues fixed. It's now back but different.

It will start first time 9/10
If you stop the engine or stall it won't restart for a random time period up to 5min but still on test

When it won't start it cranks and starts up as normal for a split second then stops

Also to note on a start up from cold it sounds like it's misfiring. (Plugs changed with no change)

Can anyone help

Thanks in advance

 

[adrianblack]

Had something like this before. Exhaust blocked. Unbolt at manifold and try. It'll be noisy. Lol

 

[Sparky2018]

Hi, seems you have check the plugs.
Probably should give the coils a look.
(Engine shaking)
Camshaft sensor for crank no start.

coils as mentioned above that could be causing misfire on one of the cylinders.
A diagnosis tool would be most helpful to locate if you need to pinpoint the problem and not have to waste your money by firing the parts cannon.
(Probably isn't a blocked exhaust)
If you can get a diag tool then you will be able to find the code and narrow down the search this might save a bit of time as well.
(other possible solutions are wiring issue so check the ground points are clean.)

 

[Micra Paul]

Micra 2005 - 1.2

Please can you help me since getting this far for a 1st timer (17 year old) it's not started first time that was fixed with a new ignition switch and some wiring issues fixed. It's now back but different.

It will start first time 9/10
If you stop the engine or stall it won't restart for a random time period up to 5min but still on test

When it won't start it cranks and starts up as normal for a split second then stops

Also to note on a start up from cold it sounds like it's misfiring. (Plugs changed with no change)

Can anyone help

Thanks in

Zero cost quick test.

When it stops & won’t restart, try holding the accelerator pedal to the floor throttle wide open & then spin the engine on the starter for up to one minuet & it may dry the plugs & the exhaust gas O2 sensors & restart.

Keep the pedal to the metal & do not pump the throttle when attempting to restart.

When it catches & restarts release the throttle asap.

Good luck.