I have Forscan open and for live data, with the ign on, I have selected everything. Viewing in table view, the FRP_LRS is the only 5V showing.  If I unplug the sensor on the fuel rail, the FRPS goes to 5V and throws a fault code. Plugging it back in, it returns to a mid voltage.

This FRP_LRS is the prime suspect right now. Where is it?

Will the car start and run if you spray Easy Start in to the air intake ?

My thoughts are still that the HP pump is in some way faulty. Maybe a faulty non-return in the pump ?

Will have a look this evening if i can find anything extra regarding your code.

4 hours ago, unofix said:

Will the car start and run if you spray Easy Start in to the air intake ?

My thoughts are still that the HP pump is in some way faulty. Maybe a faulty non-return in the pump ?

As unofix said easystart is always great to see if a engine physically runs

If you can keep it going with 2 people just gently squirting every second you may throw up some more codes

I don't know where that Sensor gets its reading from, if it is not obvious then it may be part of the Tank Pump assembly.

I would be tempted to start from first principles, forgetting about fuel for a moment and check that there is a RPM reading when cranking and there is a spark at the ends of a Coil.

Also if you go into Output Control Mode in FORScan, you may be able to control the Furl System from there, what you can control varies from car to car.

It does sound like a problem with the HP Fuel Pump though.

Ok so both my systems come up with the same description for this code

 

Highly unlikely yours has the same issue, but we had another ecoboost recovered in today, one of the codes was the same as yours, sounded low on compression,  took engine filler cap off and cranked engine, exhaust camshaft wasnt rotating!

Have 3 in now, 1 piston broke, 1 timing belt delamination blocking oil strainer, 1 with what i assume is going to be stripped/ broken belt 😖

Did you try easy start in the end to check the engine mechanically runs?

Thank you all for your input.

Today, I removed the filler cap and cranked the engine by jumping R8.  I could see the exhaust cam rotating.  I have already checked the inlet cam previously.

I swapped the HP fuel pumps. The good car has the bad car's HP pump and starts up fine. The bad car has the good car's HP pump and still does not want to start.

I suspect an interlock is in place shutting off the injectors because of this FRP_LRS. 

Just curious,  did you get to the bottom of this?

19 hours ago, Ecosport2019 said:

Just curious,  did you get to the bottom of this?

I am determined to.  I plan to ££access the Ford Etis or Ford Service Info as it is called now. 

There is a Dutch YouTuber called Diagnose Dan.  I am into that territory now....

 

I did look on diagnosis dans service bulletins for this code on you car before and it came up with timing belt issues and correlation 

On 10/13/2022 at 3:08 PM, Ecosport2019 said:

I did look on diagnosis dans service bulletins for this code on you car before and it came up with timing belt issues and correlation 

The engine was running fine before I removed it.  The timing belt cover etc was not disturbed during this time.

I paid for access time on the Ford Service Info PTS and I came across a Fuel Pressure Sensor - (Low Pressure) .  It looks like it is located on the clamp block that secures the pipe close by the flexi pipe from the HP pump.  I have checked mine, and I cannot see any sensor, but instead a plain pipe that routes its way to the underside of the car and towards the rear.  

 

2 hours ago, Winco said:

I paid for access time on the Ford Service Info PTS and I came across a Fuel Pressure Sensor - (Low Pressure) .  It looks like it is located on the clamp block that secures the pipe close by the flexi pipe from the HP pump.  I have checked mine, and I cannot see any sensor, but instead a plain pipe that routes its way to the underside of the car and towards the rear.  

 

That is strange. I have a different Engine and Fuel System to your one but when I was checking my fluid levels this week I took the Engine cover off and had a quick look expecting to see my sensor in the metal pipe leading to the HP Pump and there wasn't one obvious either. I didn't dismantle or move anything though.

Mine definitely has one somewhere because there are PID's for Desired and Actual Lowside Fuel Pressure in Kpa. 

The Electrical connection to the HP Pump on mine is only a two wire affair so it is not there.

Have you taken your plugs out yet to see it they are wet with fuel?

Can you leave a plug in a coil pack and hold against the engine, is there a spark?

Think you need to go back to the basics first if u havent already 

Could it be flooded, be amazed how many cars we have had recovered in over the years for something as basic as being flooded

I took a plug out.  It was dry, slightly sooty bit not excessive.  There was no spark when I cranked.

As a recap, the cranking barely lasts a second before it stops.  At the beginning of the crank the tank fuel pump is pulsed momentarily to 100% then goes back to zero.

 

 

 

Is there a a PID for the crankshaft position sensor?  I cannot seem to find one in Forscan.

I was hoping to see what that is doing.

Just thinking that if I have no spark and no fuel then something fundamental is upset and perhaps the P0106 is a result of a fault, but not the cause.  Could no crank signal cause this? but there again would there not be a fault logged?

 

 

1 hour ago, Winco said:

Is there a a PID for the crankshaft position sensor?  I cannot seem to find one in Forscan.

I doubt it, but as per one of my earlier posts if you bring up RPM when cranking you will see if the PCM is getting a signal that the Engine is turning over. That is something that I do as a matter of course along with Speed when doing any Live Data monitoring.

This signal will come from the Crankshaft Sensor although the Engine may be able to use substitute reading from another Sensor such as the Camshaft or even the Fuel Pump ones if the Crankshaft one is not working, at least some of the older and less complicated ones did.

On 10/17/2022 at 7:51 PM, Tizer said:

I doubt it, but as per one of my earlier posts if you bring up RPM when cranking you will see if the PCM is getting a signal that the Engine is turning over. That is something that I do as a matter of course along with Speed when doing any Live Data monitoring.

This signal will come from the Crankshaft Sensor although the Engine may be able to use substitute reading from another Sensor such as the Camshaft or even the Fuel Pump ones if the Crankshaft one is not working, at least some of the older and less complicated ones did.

Yes Tizer, your earlier post about RPM; I wish I had concentrated on it back then......

For the brief second the car cranks, the RPM PID is zero.  I disconnect the crank sensor and removed it.  No error code is displayed for the disconnected sensor.  Shame on Ford for not coding this in the ECU software.

I took the old crank sensor to my motor factors and bought a Bosch replacement.   I fitted the replacement, and the car started!

Checking Forscan, you see the RPM PID reading 100 or so when cranking before the engine starts.  For the record, FRP_LRS remained at 5V and was clearly a red herring all along.   The car idles really rough with a changed crank sensor until it settles down after a minute or so.

Just to check, I removed the Bosch sensor and fitted the original back in.  The car started up!

Do I have a wiring issue then?  I removed the sensor plug and inspected carefully.  The contact pins were seated correctly in the housing and the 3 wires looked just fine.

I did check this plug before, but I only ensured it was clicked home fully.

I am relieved and annoyed at the same time.  Annoyed that you assume a sensor with a faulty connection would flag up an error.  I'll say it again, shame on Ford for not coding a fault condition for the crank sensor.  Annoyed that I missed Tizer's RPM comment 3 weeks ago.  Annoyed that I was barking up the wrong tree with the FRP_LRS.

This has been a marathon but WE got there in the end.  My sincere thanks to all who have commented and made suggestions. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18 minutes ago, Winco said:

Yes Tizer, your earlier post about RPM; I wish I had concentrated on it back then......

For the brief second the car cranks, the RPM PID is zero.  I disconnect the crank sensor and removed it.  No error code is displayed for the disconnected sensor.  Shame on Ford for not coding this in the ECU software.

I took the old crank sensor to my motor factors and bought a Bosch replacement.   I fitted the replacement, and the car started!

Checking Forscan, you see the RPM PID reading 100 or so when cranking before the engine starts.  For the record, FRP_LRS remained at 5V and was clearly a red herring all along.   The car idles really rough with a changed crank sensor until it settles down after a minute or so.

Just to check, I removed the Bosch sensor and fitted the original back in.  The car started up!

Do I have a wiring issue then?  I removed the sensor plug and inspected carefully.  The contact pins were seated correctly in the housing and the 3 wires looked just fine.

I did check this plug before, but I only ensured it was clicked home fully.

I am relieved and annoyed at the same time.  Annoyed that you assume a sensor with a faulty connection would flag up an error.  I'll say it again, shame on Ford for not coding a fault condition for the crank sensor.  Annoyed that I missed Tizer's RPM comment 3 weeks ago.  Annoyed that I was barking up the wrong tree with the FRP_LRS.

This has been a marathon but WE got there in the end.  My sincere thanks to all who have commented and made suggestions. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I'm glad you got there in the end and just shows you that Fault Codes are a great starting point for giving clues but they can be misleading.

I can only assume that the Sensor or wiring got knocked when the Engine was removed but as you say I would have expected a code for an open circuit in that case, most Sensors are monitored. At least you know now what is likely to be wrong if it doesn't start again.

That PID for the Low Side Fuel Pressure never made sense to me, calling It FRP_LRS is an anomaly, the Fuel Rail is on the high pressure side. It is just called FLP-Low Side Fuel Pressure on my car and gives actual and desired in kPa.

With some cars it is recommended that when Crankshaft or Camshaft Sensors are replaced that the Service Procedure "Misfire Monitor Profile Correction" is done. If it is needed on that car there should be a procedure in FORScan in the Service Procedures. 

If there is not a procedure in FORScan I don't think it matters that much.

Hey @WincoDid you ever find a solution to this problem? I’m experiencing something similar.