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[P6UL K]

Has the car had any of the following replaced...

Oil temp sensor
Ecu Coolant temp sensor
Coolant gauge sensor (if different to above)
Oil cooler (if fitted)
Thermostat

If the coolant/oil temp discrepancy could cause under fueling, then the fault must lie there if everything else appears in order

Hi Al,

Since I've owned the car, none if the above have been replaced. I don't mind changing a few sensors as their overall cost won't come to much. Need to try and research what of those sensors the DTi has as my trade counter at the local stealers is hard work at times :-/

[Kevin Wood]

My only issue with the temperature sensors is that, if it went into limp-home due to inconsistent oil / coolant temperature, it should have stored the code again, and it didn't. Engine ECU remained clear of codes after being initially cleared.

Also, should have said that MAF figure at idle was with EGR disabled. With the EGR valve active MAF is at about 250 at idle.

Cleaning out the intake can't hurt, but I think the fault lies elsewhere. I reckon that gunked up one on the video had suffered a turbo oil seal failure to get that manky. It would provide an opportunity to check all the components on the intake side of the engine, though.

Wiring to the temperature sensors and security of connectors would be worth a check.

Don't suppose anyone has a working 2.2dti near me from which I could collect some live data for comparison purposes?

[aaronjb]

Don't suppose anyone has a working 2.2dti near me from which I could collect some live data for comparison purposes?

I can let you know next time Mark is over at mine with his much abused 2.2DTi (which will probably be when we do his rear bearings) if that's any use..

[edit] I should add - despite all the abuse it runs & drives just fine all the interior trim is falling off but that seems to be a usual facelift problem

[P6UL K]

My only issue with the temperature sensors is that, if it went into limp-home due to inconsistent oil / coolant temperature, it should have stored the code again, and it didn't. Engine ECU remained clear of codes after being initially cleared.

Also, should have said that MAF figure at idle was with EGR disabled. With the EGR valve active MAF is at about 250 at idle.

Cleaning out the intake can't hurt, but I think the fault lies elsewhere. I reckon that gunked up one on the video had suffered a turbo oil seal failure to get that manky. It would provide an opportunity to check all the components on the intake side of the engine, though.

Wiring to the temperature sensors and security of connectors would be worth a check.

Don't suppose anyone has a working 2.2dti near me from which I could collect some live data for comparison purposes?

On way to work this morning the EML came on for about 10secs then went out, but on the way home it came on for a good 10min or so then went out again.  How do i get the error codes up?  Something to do with the key/brake pedal isn't it?

[P6UL K]

**And went into limp mode 

[joff]

My only issue with the temperature sensors is that, if it went into limp-home due to inconsistent oil / coolant temperature, it should have stored the code again, and it didn't. Engine ECU remained clear of codes after being initially cleared.

Also, should have said that MAF figure at idle was with EGR disabled. With the EGR valve active MAF is at about 250 at idle.

Cleaning out the intake can't hurt, but I think the fault lies elsewhere. I reckon that gunked up one on the video had suffered a turbo oil seal failure to get that manky. It would provide an opportunity to check all the components on the intake side of the engine, though.

Wiring to the temperature sensors and security of connectors would be worth a check.

Don't suppose anyone has a working 2.2dti near me from which I could collect some live data for comparison purposes?

On way to work this morning the EML came on for about 10secs then went out, but on the way home it came on for a good 10min or so then went out again.  How do i get the error codes up?  Something to do with the key/brake pedal isn't it?

not on the DTi

[joff]

My only issue with the temperature sensors is that, if it went into limp-home due to inconsistent oil / coolant temperature, it should have stored the code again, and it didn't. Engine ECU remained clear of codes after being initially cleared.

Also, should have said that MAF figure at idle was with EGR disabled. With the EGR valve active MAF is at about 250 at idle.

Cleaning out the intake can't hurt, but I think the fault lies elsewhere. I reckon that gunked up one on the video had suffered a turbo oil seal failure to get that manky. It would provide an opportunity to check all the components on the intake side of the engine, though.
Wiring to the temperature sensors and security of connectors would be worth a check.

Don't suppose anyone has a working 2.2dti near me from which I could collect some live data for comparison purposes?

All DTi's i've had looked like that when cleaning inlet manifold after 100K

[Kevin Wood]

Don't suppose anyone has a working 2.2dti near me from which I could collect some live data for comparison purposes?

I can let you know next time Mark is over at mine with his much abused 2.2DTi (which will probably be when we do his rear bearings) if that's any use..

[edit] I should add - despite all the abuse it runs & drives just fine all the interior trim is falling off but that seems to be a usual facelift problem

Sorry for the delay - that would be very useful. Always good to have a few datalogs from cars that aren't broken.

[P6UL K]

My only issue with the temperature sensors is that, if it went into limp-home due to inconsistent oil / coolant temperature, it should have stored the code again, and it didn't. Engine ECU remained clear of codes after being initially cleared.

Also, should have said that MAF figure at idle was with EGR disabled. With the EGR valve active MAF is at about 250 at idle.

Cleaning out the intake can't hurt, but I think the fault lies elsewhere. I reckon that gunked up one on the video had suffered a turbo oil seal failure to get that manky. It would provide an opportunity to check all the components on the intake side of the engine, though.

Wiring to the temperature sensors and security of connectors would be worth a check.

Don't suppose anyone has a working 2.2dti near me from which I could collect some live data for comparison purposes?

On way to work this morning the EML came on for about 10secs then went out, but on the way home it came on for a good 10min or so then went out again.  How do i get the error codes up?  Something to do with the key/brake pedal isn't it?

not on the DTi

Anyway of obtaining without an OBD reader?

[joff]

last time i put my reader on i got a big fat zero. Anyone by you with Tech2? I have a good Turbo off of a 2.2dti in my garage if you get to the point you want to try it out.

[joff]

I have had the EML come on on mine in the past few weeks, always just after a night shift and a around 2.5 deg C. limp mode until i could stop turn off engine and re-start then all was fine, when i get 5 min to look at my own car i will see if anything not as it should be, must be 6K since i last did inlet manifold but i also have the copper seal on injector one to do yet (and that is a cam shaft out job) nice. it does help having a spare 2.2dti engine with only 48K on the clock in the garage for the odd part now and again

[P6UL K]

last time i put my reader on i got a big fat zero. Anyone by you with Tech2? I have a good Turbo off of a 2.2dti in my garage if you get to the point you want to try it out.

Unfortunately Kevin is the nearest person to me so it's 160 mile round trip if I want to get my ECU read again... The results from the Tech2 show that the turbo is spooling up nicely and giving the required amount of boost its just that the boost is disappearing between the turbo and the engine somewhere...?

[P6UL K]

I have had the EML come on on mine in the past few weeks, always just after a night shift and a around 2.5 deg C. limp mode until i could stop turn off engine and re-start then all was fine.

Strange you should bring that up as that is exactly what my car done yesterday and again this morning! Never done it before either!

I'll have to see if I can borrow a generic code reader to see what codes have been stored with the EML coming on yesterday & today.

[joff]

is your intercooler OK ? no small holes ?

[P6UL K]

The system hasn't been pressure tested but James (Twiglet) has informed me it had a new intercooler by the previous owner when he also had the turbo and EGR renewed.