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Discussion Starter #1
Hi

Got the classic EGR powerloss problem today. Total loss of power and engine running uneven. Have fixed this before by cleaning the EGR valve and MAP sensor. Did the same today, the power was back to normal for a couple of hundred meters, than the power disappeared again. Limped back home, waited 10 minutes and tried again. Power back to normal, then disappeared at the exact same place as the first time!

Downloaded Multiecuscan and connected to engine. The error log showed: "P0402 - EGR Valve - Signal high. Exhaust gas recirculation excessive flow detected"

When going in to the engine parameters I see that the EGR valve opening is constantly on '3,998%' and EGR control is 'OFF'. When driving, the EGR control sometimes (2 times in 15 minutes) go to 'ON' in 1-2 seconds and opening % increasing, then back to 'OFF' and '3,998%'.

Any ideas? Faulty EGR? Have checked the cables for bad connection.

BR
Christoffer
 

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Greetings to Norway (just back from Oslo last night!)
This has been covered before (use search for a bit more info), but 4% is closed (it's the base value). One of the problems is the Pin in the EGR that opens and closes the valve (did you take that bit of the EGR apart?), it corrodes in it's housing and won't move properly, as a result the car is demanding it be closed, but it just sticks open. Not a lot you can do if it is coroded, but you can replace the EGR (pick up a new one for £80 on ebay (its the same as the one in Opel CDTI, or Saabs). But double check the EGR is the issue by blanking it temporarily with some metal (the side of a drinks can will do for a couple of hundred mile (only!!!!)). It will raise a warning light on the dash (that will disappear after 3/4 starts (with key removed between) when its removed).
Long term you will probably need a new EGR, at least get a restrictor plate, but for the price of £150 Autolusso will blank and remove from the ECu (if you have the time, you can send off the ECU to them to do it).

Also if you have an EGR issue, then you may have a clogged DPF, ensure you give it a good run. (otherwise check the diesel power loss guide in the stickies)
 

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Discussion Starter #3
Plugged in Multiecuscan this morning on my way to work, now the EGR valve seems to be back in normal operation. Showing 'ON' the entire time with opening varying from 10-50%, just going to 'OFF' when taking the foot of the accelerator and the engine brakes the car. Hurray!
 

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Discussion Starter #4 (Edited)
Greetings to Norway (just back from Oslo last night!)
This has been covered before (use search for a bit more info), but 4% is closed (it's the base value). One of the problems is the Pin in the EGR that opens and closes the valve (did you take that bit of the EGR apart?), it corrodes in it's housing and won't move properly, as a result the car is demanding it be closed, but it just sticks open. Not a lot you can do if it is coroded, but you can replace the EGR (pick up a new one for £80 on ebay (its the same as the one in Opel CDTI, or Saabs). But double check the EGR is the issue by blanking it temporarily with some metal (the side of a drinks can will do for a couple of hundred mile (only!!!!)). It will raise a warning light on the dash (that will disappear after 3/4 starts (with key removed between) when its removed).
Long term you will probably need a new EGR, at least get a restrictor plate, but for the price of £150 Autolusso will blank and remove from the ECu (if you have the time, you can send off the ECU to them to do it).

Also if you have an EGR issue, then you may have a clogged DPF, ensure you give it a good run. (otherwise check the diesel power loss guide in the stickies)
Thanks for your reply! Yes, I dismantled the EGR valve and cleaned it. The mechanical valve seems to be running smoothly, can perhaps be the solenoid that is unstable. And yes, will order a restrictor plate!

Edit: Ordered this just now, will try both: Ebay
 

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Greetings to Norway (just back from Oslo last night!)
This has been covered before (use search for a bit more info), but 4% is closed (it's the base value). One of the problems is the Pin in the EGR that opens and closes the valve (did you take that bit of the EGR apart?), it corrodes in it's housing and won't move properly, as a result the car is demanding it be closed, but it just sticks open. Not a lot you can do if it is coroded, but you can replace the EGR (pick up a new one for £80 on ebay (its the same as the one in Opel CDTI, or Saabs). But double check the EGR is the issue by blanking it temporarily with some metal (the side of a drinks can will do for a couple of hundred mile (only!!!!)). It will raise a warning light on the dash (that will disappear after 3/4 starts (with key removed between) when its removed).
Long term you will probably need a new EGR, at least get a restrictor plate, but for the price of £150 Autolusso will blank and remove from the ECu (if you have the time, you can send off the ECU to them to do it).

Also if you have an EGR issue, then you may have a clogged DPF, ensure you give it a good run. (otherwise check the diesel power loss guide in the stickies)
We can now do an EGR delete remotely so no need to be without the car or drive miles to come and see us. £150 inc VAT

Ned
 

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We can now do an EGR delete remotely so no need to be without the car or drive miles to come and see us. £150 inc VAT

Ned
Sounds good, how does that work? :)
 

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You have my interest, how do you do it?
£150 inc VAT

We send you a bit of software and a lead along with the EGR blank plate

Load the software on a lap top

Read the hardware and software numbers

Read the file from the car and save it & email it to us

We do the software alterations & email it back

You load the adjusted file on to your car and fit the blank plate

Job done

Moving forward we have the file from your car so we can do any mapping required and email it to you so you can over write what is on the car without having to read the software on the car again

Ned
 

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£150 inc VAT

We send you a bit of software and a lead along with the EGR blank plate

Load the software on a lap top

Read the hardware and software numbers

Read the file from the car and save it & email it to us

We do the software alterations & email it back

You load the adjusted file on to your car and fit the blank plate

Job done

Moving forward we have the file from your car so we can do any mapping required and email it to you so you can over write what is on the car without having to read the software on the car again

Ned


That'll be some of the July paycheck then, a birthday present to myself.
 
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