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Discussion Starter #1
Hi All

My partner has recently bought a 56 plate, 2005 Peugeot 407 SW 1.6HDI and now the check engine light has come on.

I ran the codes using my the standard OBD2 function on my mercedes icarsoft tool and it came up with the following codes;

(1) - P0299 - Turbo underboost
(2) - P1457 - Unknown (manufacturer specific)
(3) - P1351 - Unknown (manufacturer specific)

The car also seems underpowerd, although I usually drive a CLK 320 petrol so this may just be my imagination.

Any ideas what the faults could be?

Thanks

Chris
 

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Hi All

My partner has recently bought a 56 plate, 2005 Peugeot 407 SW 1.6HDI and now the check engine light has come on.

I ran the codes using my the standard OBD2 function on my mercedes icarsoft tool and it came up with the following codes;

(1) - P0299 - Turbo underboost
(2) - P1457 - Unknown (manufacturer specific)
(3) - P1351 - Unknown (manufacturer specific)

The car also seems underpowerd, although I usually drive a CLK 320 petrol so this may just be my imagination.

Any ideas what the faults could be?

Thanks

Chris
Hello
for the P0299 read this ....( Is my turbo done? Fault code p0299)
P1457......(Fault code)
P1351......(P1351 Preheating relay circuit.)

Hope it gives you an idea....
 

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Underboost fault code is your problem but there are many reasons for it main 1 being vacuum leaks then DPF issues if it has one sounds like it does from the codes you quote
 

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Discussion Starter #4
HI
Thanks for the responses, what would be the best course of actions.

I read the links and it says mostly the P0299 is caused by either the BOV or sensor although you are suggesting a vacumn leak.

I note the car has glowplug issues and if so and had been neglected by a previous owner then it may not have regenerated thus blocking the dpf and triggering that fault.

I know on BMW's they wont regenerate unless over a certain temperature and with a min amount of fuel and working glowplug and over a certain speed. Is the Peugeot similar.

Also, would loss of vacumn stop a regeneration?

Is anyone around nottingham/derby have the peugeot software for better diagnosis or any recommendations of good local independent specialists.

We need this car badly.

Thanks
CHRIS
 

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The glow plug fault is not really anything to do with DPF directly but yes as you say faults with glowplugs can lead to DPF issues but not on their own.

The other code relates to DPF though you just need to be methodical check through everything that can be faulty a lot can be tested very cheaply with a bit of time but you need a proper computer to check DPF regeneration cycles etc you need to know what is REALY wrong diagnostics is more than reading codes.
 

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Discussion Starter #6
HI
Can someone tell me where the BOV and vacumn solenoid is for the turbo on the 1.6 hdi and how to access them so I can check them.

Thanks
Chris
 

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Solenoid should be under the turbo but not much to test you would be better getting a vacuum gauge and checking for good stable vacuum at the turbo
 

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mine is a 2.0 but try this

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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Discussion Starter #12
HI
The low oil level warning light came on today and I checked the oil which was just below the min on the dipstick.

I topped it up with oil and the warning light went off and so did the engine warning light?

I had a friend look at the engine today and all vacumn pipes seem sound and the history I got shows the solenoid was changed in December 2019.

Not sure still what triggered the EML but has to be something that can reset itself
 

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(1) - P0299 - Turbo underboost

have you checked all pipes connected to the turbo including the intercooler?


(2) - P1457 - Unknown (manufacturer specific)

Error Code P1457 is detected when there is a small leak detected from the EVAP system.

Common Symptoms
As with other error codes, this code activates the Check Engine light and registers the code to the vehicle’s memory system. There are usually no performance and drivability issues on the engine. However, in most cases, there are noticeable fuel odors caused by the release of fuel vapors.

Also, the leak detection EVAP control system is set.

Possible Causes
There are multiple causes for this code, such as:

  • Missing fuel cap
  • Use of wrong fuel filler cap
  • Foreign matter caught in fuel filler cap
  • Fuel filler cap remains open or fails to close
  • Defective EVAP canister
  • Defective purge control solenoid
  • Defective fuel tank pressure sensor
perhaps these 2 codes are related? take a look at the pipes to the egr valve, egr cooler?

(3) - P1351 - Unknown (manufacturer specific)

I think that coukld be a a glow plug mate
 

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i just cleaned my dpf filter... i got a honda petrol water pump
cleaned then filled up a wheelie bin and forced it through
ill errr uplaod a vid to youtube
 

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Discussion Starter #16
HI
Thanks, my friend who is a Land Rover mechanic checked the pipes today and said all are fine.

He did mention Glow Plugs and I will see about getting them from EuroCarparts.

I will look at the above over the weekend.

He did say that the coolant in the coolant reservoir looked a little milky and wondered of there was a slight head gasket issue saying that can sometimes cause these errors?

There is no other signs of head gasket failure and the car does not overhead or get too pressurised. I have heard of head gasket failure in Peugeots but thought that was petrol engines, do the diesels also suffer this

Thanks
Chris
 

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Head-gasket is not a good thing to go wrong.

If that is the problem you are likely to see oil or oily deposits in your coolant reservoir and a dirty line above the water level.

I would say this is RARE unless you drive like a maniac or have huge amounts of white smoke coming from your exhaust

I see myself as a car enthusiast and I have NEVER taken a car to a garage in my 18 years of driving.

I think a head gasket would be a challenge but I did see a good video on it



I payed for next day delivery with eurocarparts 11 days ago.. so far 40% of what I ordered has arrived

and they are taking the Michael with the emails they send me daily... offering next day delivery

I'm not a happy customer
 

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Discussion Starter #20
Hi
I'm sure the head gasket is fine, I have seen head gasket issues on other cars and this one doesnt have any of those signs.

The coolant looks like water and the bottle has the usual brownish dirt on the inside of it.

It could do with being changed and as the car doesnt seem to go much above 70 degrees I would guess the thermostat is stuck open so I may change that, flush the system and clean the bottle our with washing powder and then refill with fresh coolant
 
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