C4 Pic 2014 Exclusive (B87) - Fuel Pressure Issue ?? I think ??

[zane2g2]

Good morning you lovely people

Driving the car this morning and I had a couple of warning throw up on the display...
"Engine Fault: Have the vehicle repaired"
and
""ESP/ASR system fault"

The esp I believe is the braking system. But the odd thing is that brakes are fine.

The big one is the Engine Fault. The engine is the 1.6 hdi Diesel.
The car drives ok until it is under load.
Driving at approx 30-40mph then put your foot down it starts to have a mild stutter.
Lift your foot off and it the engine revs ok.
Put your foot down again and the mild stutter returns.
It's almost feels like a miss fire.

I have an OBD2 reader and after updating it, it shows a code of P0087 which I believe is a low pressure fuel problem.

Would any of you lovely people have any ideas what could be causing this issue.
I'm thinking of having the Fuel Filter replaced and emptying & replacing any fuel in the tank, just to be on the safe side.

[GiveMeABreak]

Can you pop the VIN up please so I an identify the correct engine and options.

[zane2g2]

Can you pop the VIN up please so I an identify the correct engine and options.

Howdy

The vin plate is - VF7**************[VIN obfuscated, can be read by forum staff]

CHEERS

[GiveMeABreak]

Ok, so here is the diagnosis for that code - quite involved! However, before doing anything I would suggest you look at my last point about the recall for your vehicle below.

Fault code	P0087
After sales description of the fault code	Fuel circuit: The pressure measured in the injection rail is less than the setting
Description of the diagnostics	The measured pressure is below the reference value by more than 9% (For 1,2 seconds)
Conditions of activation of the diagnostics	Engine running
Conditions of disappearance of the fault	Driving for 5 minutes with several full load accelerations for 10 seconds
Down-grade modes if fault present	Closing of the EGR (exhaust gas recycling) valve Irreversible deactivation of the vehicle speed limiter Irreversible deactivation of the vehicle cruise control Deactivation of taking account of the tight spot information Switching of the turbocharging pressure regulation to controlled mode Switching to fuel "normal reduced flow" mode;Sending of the information "torque uncertain" on the CAN network
Switching on of the warning lamp and/or warning message	Warning lamp MIL Warning lamp STOP
Main customer complaints likely	Jerking/stalling Lack of power Starting problem Slightly higher fuel consumption Fluid leak/smells (diesel fuel, oil, etc.) Cutting of the vehicle speed limiter Cutting of cruise control Difficult to engage gears Noise Engine acceleration at wrong time Smoke from the exhaust Absence of automatic stopping of the internal combustion engine (If the vehicle has the Stop and Start system)
Suspect areas	Poor quality of the fuel or type of fuel Air leak on the fuel filter Clogging of the fuel filter Leak in fuel circuit (low pressure) Blockage on the low pressure fuel return circuit Fuel high pressure flow regulator high pressure fuel pump Pressure sensor on the fuel high-pressure injection rail Leak on the high pressure fuel pipes Leak on the fuel high pressure common injection rail Fuel injectors Electrical harnesses Connectors

However, whilst checking your vehicle, I need to inform you that there is a recall outstanding on this vehicle:

"An after-sales campaign must be carried out on this vehicle. Advise your client to make an appointment with their authorised dealer as soon as possible"

So I would ring your dealer, have the reg or VIN handy and tell them you have been advised there is a recall coming up as outstanding. I can't tell you what for - they keep that information internally.

[zane2g2]

Hi Marc,

Many thanks for your help.
I have the car booked in tomorrow for an MOT so I'll get them to check it out.
I might try the cheap fix of new Fuel Filter and drain & clean the fuel lines and get the injectors cleaned.

I phoned the Local Citroen dealer and the recall is for the Drive Belts and Tensioner.

I'll keep you posted.

[zane2g2]

Hi Marc,

Would you happen to have a diagram/illustration for replacing the fuel filter on this particular vehicle at all please.

I think the issue is down to rubbish/dirty fuel.
The fault code has gone and not returned and the car appears to running ok.
But I'm still going to replace the fuel filter, empty the fuel and clean everything out.

Cheers
Zane

[GiveMeABreak]

I'll type up a guide shortly for you.

[GiveMeABreak]

Here you go:

Removing and Replacing the Fuel Filter Specifically for the C4 Picasso (B78) with DV6C Engine without Particle Filter

Recommended Tools:

Plug Set	Click Fit Union Plugs

Equipment:

• Degreasing product (Type SODIMAC)
• Cleaning tray
• Brush

Removing

Ideally get the vehicle raised on a hoist
Disconnect the Battery - see procedure: (BSI Reset / Battery Disconnect / Reconnect Procedure)
Remove

• The protective panel under the engine
• The engine cover

Fuel Filter

Place the tray underneath the fuel bleed pipe outlet (When coupling the tool, protect yourself using a cloth to prevent any splashes of fuel). Disconnect and move aside the connector ( as "b") (Water in diesel fuel detector) (according to equipment). N.B.: The water in diesel detector acts as a lock for the water bleed screw (2) on the fuel filter. Unlock: The water bleed screw (2) (Clockwise); Raise the water bleed screw (2) fully (In the direction of the arrow ( as "c")). Allow the liquid to flow out. Disconnect and move aside the connector (as "a") (Fuel filter heater). Clean the unions (1), (3a), (3b) using the degreasing product, the brush and the cleaning tray. Uncouple the connectors (1), (3a), (3b).

CAUTION: Plug the openings when a union is uncoupled using the tools [1520-B / 5705-T]. CAUTION: Close the pipes on the fuel filter, using the tools [0194-T]. Slacken the bolts (4) (captive screws). CAUTION: With great care, vertically disengage the fuel filter (5) from the fuel filter support (Risk of damage). Remove the fuel filter (5).

Fuel Filter Element

CAUTION: The water in diesel fuel detector, the priming pump and the diesel fuel heater are integral with the cover (5a) of the fuel filter (5). If there is any anomaly, replace the fuel filter (5) cover (5a) in its entirety. Check that the centring ring is present (as "d"). CAUTION: Place the cover (5a) of the fuel filter (5) upside down, in a spot that is secure and clean. Remove: The bolts (6) The filter element (5b) from the cover (5a) of the fuel filter (5) (Fuel filter heater)

Refitting

ESSENTIAL: Respect the safety and cleanliness recommendations that are specific to high pressure diesel injection (HDi) engines.
CAUTION: Adhere to the tightening torques *.
CAUTION: At refitting, all the removed seals must be replaced with new seals.
CAUTION: Open the bag containing the fuel filter (5) just prior to refitting.

* Torque Settings - Fuel filter:

Reference Designation Stage Tightening torque (13) bolts (Fuel filter cover) Tightening 0,3 daNm (14) bolts (Fuel filter ) Tightening 0,8 daNm (15) bolts (Fuel filter support) Tightening 0,8 daNm

Fuel Filter Element

N.B.: Check the condition of the seal ( as "e"); If there is any anomaly, replace the fuel filter (5) cover (5a) in its entirety. Unlock: The water bleed screw (2) (High position). Refit the seal ( as "g") (New). CAUTION: Be careful when positioning of the cover (5a) of the fuel filter (5) (Locating lugs ( as "f")). Position the cover (5a) of the fuel filter (5) on the filter element (5b) (Locating lugs ( as "f")). Refit the screws (6) without tightening. Push the water bleed screw (2) fully ; Lock : The water bleed screw (2) (Anti-clockwise). Retighten the bolts (6) to the correct torque.

Check that the centring ring is present( as "d"). CAUTION: Very carefully, vertically position the fuel filter (5) in the slot "h" in the support (7) of the fuel filter (5) (Risk of damage). Fit the fuel filter assembly (5) onto the support (7) ( as "h") (Carefully). Refit the bolts (4). Remove the tools [0194-T], [1520-B / 5705-T]. Couple the click-fit unions (1), (3a), (3b). Connect: The connectors ( as "a") (Fuel filter heater) The connectors ( as "b") (Water in diesel fuel detector) (According to equipment Refit: The engine cover The protective panel under the engine

Priming and bleeding the fuel circuit

Operate the manual priming pump (8) several times to prime the fuel circuit.

Checking for Leaks:

CAUTION: Perform the operations that are required following a reconnection of the ancillaries battery.

Reconnect the ancillaries battery. (Refer to previous procedure for reconnection)

• Start the engine.
• Allow the engine to idle for 2 minutes.
• Check the absence of leaks.

Bleed during service (Presence of water)

• Put the vehicle on a hoist.
• Remove the under engine protection.
• Place the tray underneath the fuel bleed pipe outlet (When coupling the tool , protect yourself using a cloth to prevent any splashes of fuel).

Disconnect and move aside the connector ( as "b") (Water in diesel fuel detector) (according to equipment). Unlock the water bleed screw (2) (Clockwise); Raise the water bleed screw (2) fully (In the direction of the arrow ( as "c")). Leave the fuel to flow into the tray. Push the water bleed screw (2) fully; Lock: The water bleed screw (2) (Anti-clockwise). Connect - Release the connector ( as "b") (Water in diesel fuel detector) (according to equipment). Operate the manual priming pump (8) several times to prime the fuel circuit. Remove the tray from underneath the engine. Refit the under-engine protection .

[zane2g2]

Hi Marc,

You sir are a legend.

Many thanks

Zane

[RichardW]

Just changed the fuel filter on my 3008 with the same engine for the same fault... hopefully it has cured it! I was unable to get the 3 small TORX screws out and had to replace the entire filter and lid - manged to get an OE one from e-bay for just over £40. I didn't bother draining it first, just removed it full of fuel then emptied it once out. Depending on access you may need to dismantle half the car to get access to it!!