2010 motor cutting out

[Lauchlin]

I have a 2010 b 4000 with 65000 km on it starts and runs fine after a few min around 5 to 10 the motor stalls at any speed but starts right back up then any were from 3 to 10 min cuts out again ? Dose not any codes and new parts just replace are fuel pump, Cam sensor ,Coil pack .....was going to try a new Mazda ECM ECU PCM but there is some security set up in i could not get passed ....Any ideas would be great ...

 

[franklin2]

Cleaned the throttle body and the idle air control valve?

 

[Lauchlin]

New idle air control valve

 

[franklin2]

Cleaned the throttle blade?

 

[Lauchlin]

No i have not done that it seem like it electrical and i have change all the relay ...I will clean the throttle in the morning you never know and thank you

 

[franklin2]

On the idle air, a portion comes from the crack around the throttle blade, the rest is made up by the computer and the idle air valve you replaced. The throttle likes to get dirty and plugged with this sticky brown carbon build-up. That can plug off some of the air coming through the throttle, and it gives a chance for it to stall, the computer is good at trimming the air flow, not supplying all of it the engine requires.

If you find it was dirty, you may need to give it a chance and a couple of restarts for the computer to adjust itself and relearn the idle parameters.

 

[Lauchlin]

I cleaned every thing around the throttle shaft it was very clean to start with but it made no difference's ....I forgot to mention fuse 44 popped just before this started i replaced it and cutting out started ......