Ford Duratec 2.3 no spark HELP!!

[Maui007]

I use 36-1 crank and 1x cam pulse no error code during cranking

[Maui007]

Here's my file

test v2.pclx

[Adamw]

What ignition coil(s) does it have, many of the duratec coils dont have built-in amplifiers so will need an external one.  

[Maui007]

the engine has Honda air wave cop coils on it

[Adamw]

Ok, please give us a short PC log of it cranking and also do a trigger scope capture while cranking.  

[Maui007]

here you go and thank you for your time.

Trigger Scope - 2024-04-26 9;28;50 am.llgx

Just so you know Adamw the car came to me running and it drove here to me to get tune. However the ecu was password protected so I had to build a new map and loaded into the ecu. I did saved the original map. It runs on the original map but had a drivability issue and the owner wants it retuned!?!?

[Adamw]

The trigger scope shows the crank wheel is not 36-1.  The scope hasnt captured two cam revolutions so its a bit hard to tell confidently what it has, but it looks almost like it does still have 36 teeth, but just none missing?  I guess it could be 60-2, but the compression pulses look like they are roughly 18teeth apart which suggests it is more like 36 teeth. 

Is the trigger wheel on the front of the engine or internal?    

 

[Maui007]

in front just behind the belt pulley

[Maui007]

coil and engine

[Adamw]

How come the picture has HT leads to the spark plugs?  Were the coils changed later? 

Can you give us a picture of the trigger wheel.  

[Maui007]

42 minutes ago, Maui007 said:

in front just behind the belt pulley

 

[Adamw]

So can you see any missing teeth on that crank wheel?

[Maui007]

Well guess what? You’re eight it has no missing teeth because someone welded back on the trigger wheel lol

 

[Adamw]

I would suggest you remove that tooth, it will never work well like that.  In fact I suspect the "drivability issue" it had previously was quite likely due to that trigger wheel rather than a tune issue. 

The problem with no missing teeth on a high tooth count wheel is the cam sensor is what provides the index position.  When you have 36 teeth, there are only 10 degrees between teeth, this means your cam can only drift a maximum of 5 crank deg or 2.5 cam degrees before it will cross a crank tooth and cause a trigger error.  That is not enough tolerance for typical engines.  

If you have a missing tooth crank wheel, then the missing tooth provides the index, the position of the cam tooth is no longer critical and can move around without causing an error.