Slight Imbalance In Engine Around 1500Rpm

[derekod]

I have had this slight Imbalance for a while now as you can feel it if you bring the revs up steady.

 

Fuel consumption I feel is good around 44mpg average Urban.

Acceleration feels good it has improved since I had advanced the timing with the torsion value reading .6 to 1.1 after replacing the timing belt and water pump.

I would rule out an issue with the DMF as that was replaced earlier in March when the slave cylinder failed.

 

I don't think it is an issue with the Injector Loom as I am not experiencing a definite miss in the engine and this is not intermittent it is there the whole time.

I have not pulled off the valve cover as of yet but I am starting to feel it maybe some cam wear or possibly injector adjustment

 

With VCDS measuring blocks at idle I am getting readings 

 

Cylinder 1  -26 mg/str

Cylinder 2  .24 mg/str

Cylinder 3  -.59mg/str

Cylinder 4   .59mg/str

 

There is 160,000 miles on the clock

[Az2102]

What do you mean by "imbalance"?

[derekod]

The engine is not as smooth running you can feel the extra bit of vibration transferring through the steering wheel.

 

Cold very well be cam or lifter wear but I don't here any excessive noise from the top end, just have not got around to pull the valve cover as off yet.

 

Must have a look out for the Ford TIS manual.

 

I don't hear any obvious vacuum leaks.

 

Is there a way of checking out the injector loom with the VCDS lite?

Unless there is high resistance on one of the injector connectors, nut sure if that is possible to cause a reduced fire?