1.4 HDI 16v. engine power issues

Questions specifically about a Diesel powered C3 (usually engine or fuel related problems)
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Diesel engine related problems
Think: Diesel engine, diesel fuel system, diesel injectors and glow plugs
My Name: redhappiness

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Posts: 2
Joined: Wed May 26, 2021 5:43 pm
Model: C3 2002-2005, Original shape model
Year: 2003 (53)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 300000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: Yes
LHD or RHD: LHD (Europe)
Engine name: DV4 16-valve diesel (90 PS)
Location: Lithuania

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Dear C3 owners,

Im chasing 1.4 HDI 16v. low power issues. When engine is cold - everything is fine, but after getting warm its losing power, gets down on power in the low rev range. Already checked/changed turbo actuator vacuum pipes. Im getting these faults...(see in the picture).

Question is - what fault codes means ?

P0129 Engine Speed Signal - Excess engine speed.

P1168 Diesel High Pressure Control Circuit - Circuit different, can't check by regulator

P0500 Vehicle Speed Received by CAN - Incorrect
P0129 P1168 P0500 error Citroen C3 HDi
P0129 P1168 P0500 error Citroen C3 HDi
received_4813353628766671.jpeg (43.36 KiB) Viewed 60 times
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My Name: Arfur Dent

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Posts: 3340
Joined: Sat Jul 23, 2011 3:47 pm
Model: C3 2002-2005, Original shape model
Year: 2002 (52)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 100000
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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Been thanked: 114 times

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Hello

You have temporary codes, clear them (intermittent).

What is the code that is missing from the bottom for the screen, the injector fault?
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My Name: redhappiness

Member
Posts: 2
Joined: Wed May 26, 2021 5:43 pm
Model: C3 2002-2005, Original shape model
Year: 2003 (53)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 300000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: Yes
LHD or RHD: LHD (Europe)
Engine name: DV4 16-valve diesel (90 PS)
Location: Lithuania

Post

Well. i don't know, my mechanic done scan with lexia and these faults showed up. After he cleared the faults, car feels ok - whenever engine is cold or warm everything is ok, power and boost feels like it should be, but after 100-200~ km. the issue starts all over again (i did not disconnected battery). Mechanic said to come back if check engine light shows up, otherwise he can't help me. Today im going to other mechanic to do leak test (just in case i missed something). This issue im chasing about 2 years....
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My Name: C3CAR

Guru
Posts: 2632
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: 153 times
Been thanked: 90 times

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The photo of the broken phone screen is not lexia.

You may get more information from lexia tool, but then again, scrolling the screen may give you more information too.

The codes are the key to diagnosing engine faults on the Citroen C3 HDi.

You can use lexia yourself and avoid going back to the mechanic each time and you don't need to wait for the 'check engine' light to use it yourself.
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