fuel relay location
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- Posts: 5
- Joined: Thu Dec 02, 2021 9:24 pm
- Model: C3 2002-2005, Original shape model
- Year: 2002 (02)
- Engine Size: 1.4 (8v)
- Fuel Type: Petrol
- Mileage: 80000
- Gearbox: Manual 5 speed
- DPF: No
- LHD or RHD: RHD (UK)
- Engine name: ET3 16-valve (90 PS)
- Been thanked: 1 time
Hi new to the forum looking for the fuel relay on the 1.4 petrol 2002 lx. Can someone please shed some light on where they have hidden it please.
- My Name: C3driver52
- Posts: 2056
- Joined: Sat Apr 30, 2011 7:40 pm
- Model: C3 2002-2005, Original shape model
- Year: 2003 (03)
- Engine Size: 1.4 i
- Fuel Type: Petrol
- Mileage: 79984
- Gearbox: Manual 5 speed
- DPF: No
- LHD or RHD: RHD (UK)
- Engine name: TU3 (75 PS)
- Has thanked: 165 times
- Been thanked: 85 times
- My Name: C3CAR
- Posts: 2845
- Joined: Wed May 04, 2011 10:01 am
- Model: C3 2002-2005, Original shape model
- Year: 2002 (02)
- Engine Size: 1.4 (16v)
- Fuel Type: Diesel
- Mileage: 140000
- Gearbox: Manual 5 speed
- DPF: No
- LHD or RHD: RHD (UK)
- Engine name: DV4 16-valve diesel (90 PS)
- Has thanked: 233 times
- Been thanked: 116 times
The fuel pump relay is part of the BSM unit, the fuse box in the engine bay.
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- Posts: 5
- Joined: Thu Dec 02, 2021 9:24 pm
- Model: C3 2002-2005, Original shape model
- Year: 2002 (02)
- Engine Size: 1.4 (8v)
- Fuel Type: Petrol
- Mileage: 80000
- Gearbox: Manual 5 speed
- DPF: No
- LHD or RHD: RHD (UK)
- Engine name: ET3 16-valve (90 PS)
- Been thanked: 1 time
The car is turning but not firing I tested the pump which works put isn't getting power properly. This is why I looked for a relay. So if the relay has gone on the board they are not plug and play like I have had in other cars.
- My Name: Citroen-Driver
- Posts: 267
- Joined: Mon Dec 18, 2017 12:10 am
- Model: C3 Pluriel - with or without roof
- Year: 2003 (53)
- Engine Size: 1.6 (16v)
- Fuel Type: Petrol
- Mileage: 90000
- Gearbox: Manual 5 speed
- DPF: No
- LHD or RHD: RHD (UK)
- Engine name: ET3 16-valve (90 PS)
- Has thanked: 51 times
- Been thanked: 40 times
Hi
The fault could be IMMO? - immobiliser? - changed the battery in the key fob recently?
BSM is one of the body control units, a black box, not worth repairing as you can get replacements easily.
Diagnose IMMO faults with lexia tool
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- Posts: 5
- Joined: Thu Dec 02, 2021 9:24 pm
- Model: C3 2002-2005, Original shape model
- Year: 2002 (02)
- Engine Size: 1.4 (8v)
- Fuel Type: Petrol
- Mileage: 80000
- Gearbox: Manual 5 speed
- DPF: No
- LHD or RHD: RHD (UK)
- Engine name: ET3 16-valve (90 PS)
- Been thanked: 1 time
No not changed the battery in the fobs ill do this later see what happens. We only got the car a month ago but private sale.
Thank you for your help so far
Thank you for your help so far
- My Name: C3CAR
- Posts: 2845
- Joined: Wed May 04, 2011 10:01 am
- Model: C3 2002-2005, Original shape model
- Year: 2002 (02)
- Engine Size: 1.4 (16v)
- Fuel Type: Diesel
- Mileage: 140000
- Gearbox: Manual 5 speed
- DPF: No
- LHD or RHD: RHD (UK)
- Engine name: DV4 16-valve diesel (90 PS)
- Has thanked: 233 times
- Been thanked: 116 times
When you change the battery in key fob, the black transponder drops out and doesn't get noticed or incorrectly refitted. Then you get a non starter that turns over but no fuel delivery.
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- Posts: 5
- Joined: Thu Dec 02, 2021 9:24 pm
- Model: C3 2002-2005, Original shape model
- Year: 2002 (02)
- Engine Size: 1.4 (8v)
- Fuel Type: Petrol
- Mileage: 80000
- Gearbox: Manual 5 speed
- DPF: No
- LHD or RHD: RHD (UK)
- Engine name: ET3 16-valve (90 PS)
- Been thanked: 1 time
What does it look like. Sorry for sounding daft
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- Posts: 5
- Joined: Thu Dec 02, 2021 9:24 pm
- Model: C3 2002-2005, Original shape model
- Year: 2002 (02)
- Engine Size: 1.4 (8v)
- Fuel Type: Petrol
- Mileage: 80000
- Gearbox: Manual 5 speed
- DPF: No
- LHD or RHD: RHD (UK)
- Engine name: ET3 16-valve (90 PS)
- Been thanked: 1 time
Sorry checked both keys do have them
- My Name: Ozvtr
- Posts: 1328
- Joined: Wed Jul 10, 2019 3:31 am
- Model: C3 2002-2005, Original shape model
- Year: 2003 (53)
- Engine Size: 1.4 (8v)
- Fuel Type: Petrol
- Mileage: 80000
- Gearbox: Automatic PRND
- DPF: No
- LHD or RHD: RHD
- Engine name: TU3 (75 PS)
- Location: Brisbane, Australia.
- Has thanked: 80 times
- Been thanked: 415 times
You will need someone to help you.
Use your multimeter on continuity and check fuse f2 in the engine bay fuse box. Make sure its not blown. Or pull it out and look.
While probing one side of fuse F2 (for voltage), get someone to turn the key to 'ignition'. You should get voltage there for a second or so, then nothing.
When the key is turned, the pump runs for a few seconds to prime the system, then it STOPS! If the engine is not ACTUALY running the engine ECU cuts power to the fuel pump! The pressure in the primed lines is (normally) enough to get the engine running...THEN the engine ECU turns the fuel pump on.
You can then check pin 11 of the grey 16 pin connector the same way.
You can also sit in the back seat and listen to hear if the pump runs (for a second) when the ignition is turned on.
You can also check the fuel pressure. There is a schrader valve (like a car tyre valve) on the end of the fuel rail. Press the center pin and there should be pressurized fuel there. WARNING: this MAY spray out fuel!!! Protect your eyes, make sure there are no sources of ignition!! If fuel only dribbles out there is a problem with the fuel supply. Might be fuel pump might be blockage.
If the above works, the problem is not your fuel supply.
Use your multimeter on continuity and check fuse f2 in the engine bay fuse box. Make sure its not blown. Or pull it out and look.
While probing one side of fuse F2 (for voltage), get someone to turn the key to 'ignition'. You should get voltage there for a second or so, then nothing.
When the key is turned, the pump runs for a few seconds to prime the system, then it STOPS! If the engine is not ACTUALY running the engine ECU cuts power to the fuel pump! The pressure in the primed lines is (normally) enough to get the engine running...THEN the engine ECU turns the fuel pump on.
You can then check pin 11 of the grey 16 pin connector the same way.
You can also sit in the back seat and listen to hear if the pump runs (for a second) when the ignition is turned on.
You can also check the fuel pressure. There is a schrader valve (like a car tyre valve) on the end of the fuel rail. Press the center pin and there should be pressurized fuel there. WARNING: this MAY spray out fuel!!! Protect your eyes, make sure there are no sources of ignition!! If fuel only dribbles out there is a problem with the fuel supply. Might be fuel pump might be blockage.
If the above works, the problem is not your fuel supply.
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