Turbo overboost

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bill196510
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Turbo overboost

Post by bill196510 »

What causes it,running at around 29.2
C5 2.2 hdi 2003, called it oliver reed, drinks like him :(
Good on fuel now, lol.
Jabo
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Re: Turbo overboost

Post by Jabo »

Wastegate stuck open?
2001 Citroen C5 SX 2.0 petrol - Misty Lilac

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mooseshaver
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Re: Turbo overboost

Post by mooseshaver »

2.2 I had had faulty electrovalve that caused boost too high.
C5 III Tourer 2.0 HDi 163 Auto Exclusive
Gone cars.
C5 2.2 HDi Exclusive Estate auto 57. Awesome car. Sadly Could not be fixed by Citroen.
C5 1.6 HDi VTR Estate 56. Traded in.
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bill196510
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Re: Turbo overboost

Post by bill196510 »

Boost does vary. But electro valve makes loud humming noise. Bought a second hand one off ebay for 14 pound. With guarantee. If that's the problem. And it sorts it. ill buy a new one.
hope i can delete fault code after lol
C5 2.2 hdi 2003, called it oliver reed, drinks like him :(
Good on fuel now, lol.
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waynedance
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Re: Turbo overboost

Post by waynedance »

What are the symptoms of overboost?
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2009 Renault Megane, the misses drive.
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Re: Turbo overboost

Post by myglaren »

waynedance wrote:What are the symptoms of overboost?
Speeding fines :?:
bill196510
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Re: Turbo overboost

Post by bill196510 »

limp mode. mil light
C5 2.2 hdi 2003, called it oliver reed, drinks like him :(
Good on fuel now, lol.
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mooseshaver
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Re: Turbo overboost

Post by mooseshaver »

Anti pollution fault and then ESP fault was what I used to get. Shows how useless the anti pollution warning is to the ordinary idiot.
Really the fault should say "get on a lexia, which is something a Citroen garage has"
C5 III Tourer 2.0 HDi 163 Auto Exclusive
Gone cars.
C5 2.2 HDi Exclusive Estate auto 57. Awesome car. Sadly Could not be fixed by Citroen.
C5 1.6 HDi VTR Estate 56. Traded in.
C5 2.2 HDi SX Estate 02. Drowned in the floods of 09.
C3 1.4 HDi 92 SX 52.
Saxo 1.1 East Coast.
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waynedance
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Re: Turbo overboost

Post by waynedance »

So does the car loose power or have nothing top end?
Volvo S80 D5.........
C5 2.2HDi Exclusive 2003 manual (now gone).
2009 Renault Megane, the misses drive.
Had a 1988 BX 19TRS Auto many moons ago.
Forgive any spelling mistakes, it's the phone not me.
bill196510
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Re: Turbo overboost

Post by bill196510 »

No power,struggles to reach 50mph.no codes showing
C5 2.2 hdi 2003, called it oliver reed, drinks like him :(
Good on fuel now, lol.
bill196510
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Re: Turbo overboost

Post by bill196510 »

P0413, secondary air injection,open circuit,cant find anything
On google that tells me where to look
C5 2.2 hdi 2003, called it oliver reed, drinks like him :(
Good on fuel now, lol.
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Re: Turbo overboost

Post by Jabo »

You need to check the wiring going to the air pump, the control solenoid and also test both parts. If there is no fault found with any then the ecu is all thats left.
2001 Citroen C5 SX 2.0 petrol - Misty Lilac

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bill196510
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Re: Turbo overboost

Post by bill196510 »

boost reads -14.3psi/-1bar at idle dont think it should read minus anything.been checked over today at garage.he said all valves and piping ok and vaccum ok
C5 2.2 hdi 2003, called it oliver reed, drinks like him :(
Good on fuel now, lol.
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Re: Turbo overboost

Post by wheeler »

Jabo wrote:You need to check the wiring going to the air pump.
What air pump would that be ? Are we talking about a 2.2 HDi here ?
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Re: Turbo overboost

Post by Jabo »

Can actually only find reference to one of those air pumps in petrol Citroen engines. That's a stupid error code to display for a diesel.
2001 Citroen C5 SX 2.0 petrol - Misty Lilac

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