Yachtsmark wrote:..sorry yes Denso injectors ..mileage c.80k just done camchain, tensioner and follower.
FRP at idle hopefully shown below. Fuel pressure looks low @ 18750kpa ?
Thanks.
daraioj wrote:Assuming your fuel lines are clean and the fuel filter is new I'd say replace the scv and do a pump learn.
Then test the PRV (under heavy acceleration frp should reach but not exceed 1600bar)
Oh, I didn't know that. Thought that denso system worked on that range (230-1600) regardless of the calibration.v8dave wrote:daraioj wrote:Assuming your fuel lines are clean and the fuel filter is new I'd say replace the scv and do a pump learn.
Then test the PRV (under heavy acceleration frp should reach but not exceed 1600bar)
Fuel rail max pressure will depend on pcm calibration.
A 2011 van might be lower than 1600bar.
Interesting. Thanks again!!v8dave wrote:Earlier Mk7 transits may have gone as high as 2000bar but if there were too many warranty claims for problems caused by over fueling then one way to mitigate the issue would be reducing the rail pressure.
The denso system can be run with a fail open scv or a fail closed scv.
Ford chose the fail open option which requires a prv to protect the injectors and rail, but means the vehicle keeps running if the scv fails electrically.
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