03 16v hdi turbo stall

Questions specifically about a Diesel powered C3 (usually engine or fuel related problems)
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My Name: Huxley309

Experienced Member
Posts: 44
Joined: Sun Feb 23, 2014 5:09 am
Model: C3 2002-2005, Original shape model
Year: 2003 (03)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 67000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No

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Well sort off, turbo cuts out for a few seconds only to cut back in.

To me it feels like something controlling the turbo is cutting the boost, tried changing the electrovalve but with no difference.

Egr is blanked off, and there's no electrical gremlins that i can see, no cel is being thrown up.

Car is idles well, though i have noticed that sometimes when i depress the clutch, the revs drop almost to the point of stalling.

Would this suggest a maf issue?
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My Name: C3CAR

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Posts: 2658
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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Been thanked: 93 times

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Welcome to the forum Huxley309
Huxley309 wrote: To me it feels like something controlling the turbo is cutting the boost, tried changing the electrovalve but with no difference.

Egr is blanked off, and there's no electrical gremlins that i can see, no cel is being thrown up.
My advice would be to connect up Lexia (not OBD) and pull out all the codes. This will help you see if its MAF, turbo electrovalve or some other issue.
Huxley309 wrote:Car is idles well, though i have noticed that sometimes when i depress the clutch, the revs drop almost to the point of stalling.
Disconnect the MAF and see if your clutch problem clears.
My Name: Huxley309

Experienced Member
Posts: 44
Joined: Sun Feb 23, 2014 5:09 am
Model: C3 2002-2005, Original shape model
Year: 2003 (03)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 67000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No

Post

C3CAR wrote:Welcome to the forum Huxley309

My advice would be to connect up Lexia (not OBD) and pull out all the codes. This will help you see if its MAF, turbo electrovalve or some other issue.

Disconnect the MAF and see if your clutch problem clears.
Will do it first thing, i did it today and got quite a big performance hit, and turbo would spool much later. But there's a big hill where it always cuts on the way to work.

Do you think the wastegate is playing silly bugger?
I had the fusebox open as i had to change the bulb, and everything looked nice and dry, still had the sponge lining.

Lexia hmm, french cars still using that system, thank god they were forced onto obd later on.
It's on my to buy list asap.
Am i right in thinking it's the V48 that works with W7?

Im used to french cars and their quirks, but this has been my most modern to date, not to mention my first turbo diesel.

Now throw me a 309 and i could whip it apart with my eyes closed, or i could just wait for it to happen on it's own :mrgreen:
User avatar
My Name: C3CAR

Guru
Posts: 2658
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: 175 times
Been thanked: 93 times

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i did it today and got quite a big performance hit,
Disconnected MAF sets default values, so you get a bit of a performance hit and not ideal values for best running, but it does run ok. From what you say, I am thinking MAF isn't your problem, but let lexia do some work on that to be sure.

Huxley309 wrote:Do you think the wastegate is playing silly bugger?
Its not got a wastegate, so its not that. The turbo electrovalve controls the variable vane on the turbo, and this could be seized, but there are other things that could be giving you trouble.

Im used to french cars and their quirks, but this has been my most modern to date, not to mention my first turbo diesel.
You have the high pressure/common rail engine with the variable vane turbo, quite high tech back in 2002 :)
My Name: Huxley309

Experienced Member
Posts: 44
Joined: Sun Feb 23, 2014 5:09 am
Model: C3 2002-2005, Original shape model
Year: 2003 (03)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 67000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No

Post

C3CAR wrote: You have the high pressure/common rail engine with the variable vane turbo, quite high tech back in 2002 :)
Yeah but that's the thing isn't it, ime the words french and technological never go well together ;)

Well seems i have a new development, now the headlight adjusters have stopped working.

Methinks the issue is the fusebox/controller thingamybob.

What's your take on it?

I can buy me a new box, or buy the lexia but not both atm, which would you go for?

Also does the lexia show load values for the throttle, i know it's fly by wire and have setup a tps before, so i know what to look for if it's the throttle sensor that's cutting me power.
User avatar
My Name: C3CAR

Guru
Posts: 2658
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: 175 times
Been thanked: 93 times

Post

Well seems i have a new development, now the headlight adjusters have stopped working.

Methinks the issue is the fusebox/controller thingamybob.

What's your take on it?
Dipped beam supplies power to the adjuster motor, worth checking both dipped beams work. Then test or swap out the headlight control switch by the driver.

The headlight control switch by the driver is fed by the BSI fuse box in the glove box, more likely to be a poor connection than the actual BSI faulty.

Also does the lexia show load values for the throttle, i know it's fly by wire and have setup a tps before, so i know what to look for if it's the throttle sensor that's cutting me power.
I don't have lexia to hand at the moment, but I would imagine TPS is going to be in there. There are 2 circuits on the TPS for self checking and will show up as a fault codes like P0223 and P0228: Throttle Pedal Position Sensor problems in lexia. The pedals have been known to cause problems and may be rectified by cleaning the sensors.
My Name: Huxley309

Experienced Member
Posts: 44
Joined: Sun Feb 23, 2014 5:09 am
Model: C3 2002-2005, Original shape model
Year: 2003 (03)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 67000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No

Post

C3CAR wrote: Dipped beam supplies power to the adjuster motor, worth checking both dipped beams work. Then test or swap out the headlight control switch by the driver.

The headlight control switch by the driver is fed by the BSI fuse box in the glove box, more likely to be a poor connection than the actual BSI faulty.
Well found it, seems the spindle for the motor has seized, looks like im buying a new headlamp unit.
When i fit it, i'll throw on some light sealant to help prevent any future problems, shame as the unit looks to be in good nick.

I'll whip apart the throttle when i have time, as work and other factors are keeping me busy, i'll snag the lexia asap.
Is it a mare of a job, will i have to practice some form of yoga?

Thanks.
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