Cranks for one second, no injection, no spark
Junior Member
Joined: Jul 2023
Posts: 1
Hi Moataz, I've recently but a new engine in a 2016 1.0l ecoboost fiesta and my story is almost identical to yours.
I'm up to the stage of having replaced the Crankshaft position sensors from my old engine, I've replaced the battery and still only getting the engine turning over off the key for, maybe a second, like you say, 1.5 at most.
I've had an OBD scanner plugged in and found exactly the same first 2 fault codes as yourself, P0336 & P0365, I'm just wondering, did you ever find a solution to the cranking problem?
I've had the engine running off easystart and also, seemed to fire up when the old, worn battery was overcharging, hooked up to the charger, but it wasn't consistent.
Any advice/experience on the matter would be greatly welcome.
Thanks.
I'm up to the stage of having replaced the Crankshaft position sensors from my old engine, I've replaced the battery and still only getting the engine turning over off the key for, maybe a second, like you say, 1.5 at most.
I've had an OBD scanner plugged in and found exactly the same first 2 fault codes as yourself, P0336 & P0365, I'm just wondering, did you ever find a solution to the cranking problem?
I've had the engine running off easystart and also, seemed to fire up when the old, worn battery was overcharging, hooked up to the charger, but it wasn't consistent.
Any advice/experience on the matter would be greatly welcome.
Thanks.
Senior Member
Joined: Jun 2010
Posts: 16,528
A little tip,
When the code says circuit anything, most times it is either a poor connection to that sensor or inadequate power to it, sometimes the sensor , but not that often.
Also don't make the mistake of checking connections with an ohmmeter. If one strand of wire is making the connection it will read zero ohms and yet not be able to carry the current the circuit requires.
The right way to do the test is doing voltage drop testing , WHEN THE CIRCUIT IS UNDER LOAD !
There are some good videos demonstrating the correct procedure.
For example: if battery connections are questionable, when a load is placed on the battery and the voltage drops below a certain point , the sensors and system will not function correctly and a lot of good parts get replaced when not necessary..
When the code says circuit anything, most times it is either a poor connection to that sensor or inadequate power to it, sometimes the sensor , but not that often.
Also don't make the mistake of checking connections with an ohmmeter. If one strand of wire is making the connection it will read zero ohms and yet not be able to carry the current the circuit requires.
The right way to do the test is doing voltage drop testing , WHEN THE CIRCUIT IS UNDER LOAD !
There are some good videos demonstrating the correct procedure.
For example: if battery connections are questionable, when a load is placed on the battery and the voltage drops below a certain point , the sensors and system will not function correctly and a lot of good parts get replaced when not necessary..
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