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407 loss of power

I experienced a sudden loss of power last night. I stopped and re-started the engine and it was fine for about ten miles then suddenly went again. The car keeps going but will not accelerate and any hill, that it would normally accelerate up, I am changing down two gears to keep going. It does feel as though the turbo suddenly stops and the fuel consumption has increased by about 4 to the gallon. I have checked battery and the earth connection is not very tight-silly clamp. I have booked it in to Peugeot just hope it lasts until Wednesday.
 

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DEANMACHINE said:
I experienced a sudden loss of power last night. I stopped and re-started the engine and it was fine for about ten miles then suddenly went again. The car keeps going but will not accelerate and any hill, that it would normally accelerate up, I am changing down two gears to keep going. It does feel as though the turbo suddenly stops and the fuel consumption has increased by about 4 to the gallon. I have checked battery and the earth connection is not very tight-silly clamp. I have booked it in to Peugeot just hope it lasts until Wednesday.
Was there any other symptoms i.e a lot of black smoke?
 

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Sometimes one or both the pipes from the egr valve can be dislodged this would cause a loss of ower,get peugeot to check.Another possibility is the mass air flow sensor.
 

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407 power loss apparently solved

Would appear to have been loose earth connection as I have just driven home 50 miles with normal performance and fuel consumption. Obviously something in engine management or turbo control is more sensitive than starter motor and lights.
 

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Update

I thought I would just let you know what is going on. Car went into Peugeot last Wednesday. They tested it and said that the electric turbo control was faulty. They have ordered the part and it will hopefully be fitted on Friday.Will keep you updated. The worrying part was when the service guy said ' we do not know what it does!'
 

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Cured At 2nd Attempt

They Changed The Turbo Control And The Car Did Exactly The Same Thing The Next Day-always When Accelerating Hard. It Went Back And They Say They Downloaded New Software To The Ecu. I Have Given It Some Serious Welly And It Has Been Fine. Downloads Do Seem To Have Worked As Car Seems To Pull Better Than Before. I Was Going To Have It Chipped By Celtic But Am Now Chopping It In Against A 2.2 Hdi 170. Will Let You Know How That Compares.
 

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towman

I had this problem under guarantee. They said. We fitted a modification, which was a boost pipe with a larger bore. Regards towman
 

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Quote:Originally Posted by PeteKI think it would be fun to use turbo bleed air for various purposes. It might be a Rube Goldberg type of solution, but what the heck, this is experimental, right?

If a fuselage were designed for pressurization, you could use it for that. How about heating, or using it through a check valve to pressurize a pneumatic system? You could use it for inflating a canopy seal or something too I suppose. Again, maybe overly complex....

Anywayyyy, would bleeding air from the turbo reduce its efficiency too much? What other problems or opportunities for bleed air fun can you think of? What sort of temps are we talking about?As far as pressurizing the fuselage is concerned, see my thread "Pressurized AeroCanard ?" of 04/04/2005, and the answers that made everything clear to me.
Kumaros
Its all Greek to me
 

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yes just fixed mine!
I changed the starter moter and when i started it again i had no turbo???
eventualy found a split in the rubber elbow connectors of the vacume pipes
look for theses red things near your altenator
theres a cap on them you can lift with a screwdriver and a tiny sponge filter that can be cleaned under a tap with some fairy liquid
check every single rubber connector on all ends of these pipes (one by one so you can put them back correcly)
I had 2 splits and one that was suspect.. replaced them all with lenghts of strait pipe and cars running fine again.
theres also a selenoid hidden far top left (when stood in front of the car) behind the engine but I didnt need to touch that one for my problem. good luck

for googlers "407 turbo not working"

no engien management light
car was slow... sounded like a tank, had power but no acceleration whatsoever (close calls joining roundabouts)
no turbo whistle
no fault codes on generic obd2 reader
pp2000 had "turbo pressure to low"
 

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I had no white blue or black smoke the car was 100% untill I turned the key one day and it wouldnt start. while changing the starter moter I think I pushed one of these decaying rubber connectors too hard as it was in the way. I also have a 407 parts car that had the same problem. When I looked at that car... theres a plastic Y connector on the same pipes that had snapped Off. 2 cars fixed :sneaky: total cost 70 pence
 
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