Cylinder numbers

Questions specifically about a Petrol powered Citroen C3 (usually engine or fuel related problems).
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Petrol engine related faults, like injectors, error codes, overheating.
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My Name: winkerbunhead

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Posts: 2
Joined: Wed Nov 24, 2021 7:11 pm
Model: C3 Picasso
Year: 2002 (02)
Engine Size: 1.4
Fuel Type: Petrol
Mileage: 80000
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)

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i am repairing a misfire diagnostic. chaning sparks and coils. i would like clarification on which is which. diag states misfire on cylinder 2. so i am changing all 4 spark plugs and the coil pack on cylinder 2. .......when i know which one is cylinder 2!! :D :D :D :D
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My Name: C3driver52

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Posts: 1877
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
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)
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Hi , they are numbered back to front, having number 1 cylinder at the gearbox end and number 4 cylinder at the camshaft pulley end.
My Name: winkerbunhead

Member
Posts: 2
Joined: Wed Nov 24, 2021 7:11 pm
Model: C3 Picasso
Year: 2002 (02)
Engine Size: 1.4
Fuel Type: Petrol
Mileage: 80000
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)

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great thanks

so just to be 100%

as i am stood working on the car facing the windscreen,

cylinder 1 is on my right?
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My Name: C3driver52

Guru
Posts: 1877
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
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)
Has thanked: 89 times
Been thanked: 66 times

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Yes.
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My Name: Ozvtr

Moderator
Posts: 956
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
Trim Level: Other
Gearbox: Automatic PRND
DPF: No
LHD or RHD: RHD
Engine name: TU3 (75 PS)
Location: Brisbane, Australia.
Has thanked: 37 times
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The spark plugs can tell you a lot about the state of your engine.

If possible can you take a photo of the plug electrode ends and post it here? Preferably in line #4 to #1 (left to right).
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