Diagnostic code P0008 - hesitation at around 1800revs

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My Name: Pete C

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Posts: 13
Joined: Mon Jun 03, 2019 4:42 pm
Model: C3 2006-2009, Facelift model
Year: 2006 (06)
Engine Size: 1.4
Fuel Type: Petrol
Mileage: 96000
Trim Level: Desire
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)
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Hi this is my first post, the name is Pete.
My question is this, my friend plugged in his diag. code reader in to my C3 as I commented that it seemed under powered, although it never was fast. It came up with the code P0008, Engine Position System Performance( Bank 1 )
Can anyone throw some light on this please? I am a retired mechanic of the old "plugs and points" days and can tackle most jobs, however the modern electronics has me beat. Any help would be much appreciated. The only other issue I have is a slight hesitation at around 1800revs. It,s a bit annoying but I have become used to it now.
The car is a 2006 1400cc petrol, 8 valve, manual, with 96000 on the clock.
Thank you, Pete.
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My Name: C3CAR

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Posts: 2621
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
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
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Pete C wrote: Mon Jun 03, 2019 5:40 pm Hi this is my first post, the name is Pete.
My question is this, my friend plugged in his diag. code reader in to my C3 as I commented that it seemed under powered, although it never was fast. It came up with the code P0008, Engine Position System Performance( Bank 1 )
Can anyone throw some light on this please? I am a retired mechanic of the old "plugs and points" days and can tackle most jobs, however the modern electronics has me beat. Any help would be much appreciated. The only other issue I have is a slight hesitation at around 1800revs. It,s a bit annoying but I have become used to it now.
The car is a 2006 1400cc petrol, 8 valve, manual, with 96000 on the clock.
Thank you, Pete.
Hi Pete

P0008 - variation or non-coherence between CAM and CRANK sensors.

Could be cam belt jumped a tooth, its due a belt if not already done.

Could be Crank position sensor (on the bell housing)

Or, it could be an injector because the injectors give the CAM position signal to the ECU.
My Name: Pete C

Contributor
Posts: 13
Joined: Mon Jun 03, 2019 4:42 pm
Model: C3 2006-2009, Facelift model
Year: 2006 (06)
Engine Size: 1.4
Fuel Type: Petrol
Mileage: 96000
Trim Level: Desire
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)
Been thanked: 2 times

Post

Thanks C3 for the speedy response. The cam belt was changed by a garage a year ago but I experienced no difference afterwards, it,s always had the hesitation since I got the car at 35000 mls. I have cleaned the crank sensor "end" once before, but it made no difference. Maybe this should be replaced? Can I test it? Thinking of injectors, how would I know if they, or maybe one req. replacing? also wouldn,t an injector fault have a code of it,s own?
I once took the car to our local Citroen agent with these issues. They said the computer says there is no prob. When their "technician" drove it he agreed with me but said they didn,t know what was wrong. I never went back!
Thanks for the replies, Pete.
PS, there is no water dripping onto the coils by the way.
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My Name: C3CAR

Guru
Posts: 2621
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
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
Has thanked: 148 times
Been thanked: 88 times

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Pete C wrote: Mon Jun 03, 2019 6:58 pm The cam belt was changed by a garage a year ago
That's good. too many ignore the cam belt.
Pete C wrote: Mon Jun 03, 2019 6:58 pm I have cleaned the crank sensor "end" once before, but it made no difference
I am not surprised.

Some sensors fail internally, the body breaks or the electrical connections get contaminated at the plug.
You can clean the contacts with some contact cleaner.
Pete C wrote: Mon Jun 03, 2019 6:58 pm Maybe this should be replaced? Can I test it?
Changing it can be easier and more reliable than trying to test it. Euro car parts have the crank sensor available here.
Pete C wrote: Mon Jun 03, 2019 6:58 pm Thinking of injectors, how would I know if they, or maybe one req. replacing? also wouldn,t an injector fault have a code of it,s own?
You can do an inspection on injectors and their sealing o-rings but without an injector code you don't know they are faulty.
Pete C wrote: Mon Jun 03, 2019 6:58 pm I once took the car to our local Citroen agent with these issues. They said the computer says there is no prob. When their "technician" drove it he agreed with me but said they didn,t know what was wrong. I never went back!
So it's not going to be an easy fix, but you now have a code that wasn't there before so things are progressing.
Pete C wrote: Mon Jun 03, 2019 6:58 pm PS, there is no water dripping onto the coils by the way.
That's good news. But the fault with water dripping on the injectors fault in the past (it doesn't need to be dripping now) can cause a poor electrical connection to the injector at it's plug. A common problem for some petrol engines.
User avatar
My Name: C3CAR

Guru
Posts: 2621
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
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
Has thanked: 148 times
Been thanked: 88 times

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How confident are you that it is an 8v

Engine name: TU3 (75 PS)?
My Name: Pete C

Contributor
Posts: 13
Joined: Mon Jun 03, 2019 4:42 pm
Model: C3 2006-2009, Facelift model
Year: 2006 (06)
Engine Size: 1.4
Fuel Type: Petrol
Mileage: 96000
Trim Level: Desire
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)
Been thanked: 2 times

Post

Hi again, I assumed it is an 8 valve as in the reg. certificate it says (quote) max net power 54kw. I was thinking that was very low so it must be 8 valves. The reg. doc. also says that the Type is FCKFV version FCKFVC. The Vin No. is VF7FCKFVC28681750. The engine No. is FST35446676. I,m not sure of the TU3 75PS at all......
Is it possible to check the crank sensor with an Ohm meter perhaps? Or maybe I should just go ahead and swap it.
I will get some of the contact cleaner anyway. I have some new spark plugs to fit and while I am on that I was thinking of checking the tappets as they haven.t ever( I assume ) been done. Considering the mileage, it won,t harm to check.
Regards, Pete.
My Name: Pete C

Contributor
Posts: 13
Joined: Mon Jun 03, 2019 4:42 pm
Model: C3 2006-2009, Facelift model
Year: 2006 (06)
Engine Size: 1.4
Fuel Type: Petrol
Mileage: 96000
Trim Level: Desire
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)
Been thanked: 2 times

Post

Sorry, I just realised you replied re the crank sensor, I was distracted in mid flow.
Pete.
User avatar
My Name: C3CAR

Guru
Posts: 2621
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
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
Has thanked: 148 times
Been thanked: 88 times

Post

Pete C wrote: Mon Jun 03, 2019 8:13 pm FCKFV version FCKFVC. The Vin No. is VF7FCKFVC28681750. The engine No. is FST35446676. I,m not sure of the TU3 75PS at all......
From the VIN - TU3 -

from FCKFV - KFV is Citroen code for TU3 JP ;)

It was worth checking :D
My Name: Pete C

Contributor
Posts: 13
Joined: Mon Jun 03, 2019 4:42 pm
Model: C3 2006-2009, Facelift model
Year: 2006 (06)
Engine Size: 1.4
Fuel Type: Petrol
Mileage: 96000
Trim Level: Desire
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)
Been thanked: 2 times

Post

Thank you C3 Car Guru for the latest info.
I will let you know the results after I have had a chance to get onto it, right now I am meggar busy. I thought retirement was to take it easy, never been so busy. Still better than being a couch potato I suppose.
Anyway, thanks again, Pete.
My Name: Pete C

Contributor
Posts: 13
Joined: Mon Jun 03, 2019 4:42 pm
Model: C3 2006-2009, Facelift model
Year: 2006 (06)
Engine Size: 1.4
Fuel Type: Petrol
Mileage: 96000
Trim Level: Desire
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)
Been thanked: 2 times

Post

Thank you all for the help re- my P00008 code probs. I changed the crank sensor plus fitted new spark plugs, the old ones had very wide gaps but looked in good cond. otherwise. I also checked the tappets while I was in there, there was only a very small deviation on 2 of the exhausts, nothing major. There still is a slight hesitation at around the 1800rev point, but I can live with it.
Thanks again for the help,
Regards, Pete.
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