Engine: D52447: - Complete Loss of Boost

Funky Diver · May 15th, 2016, 11:48

Grrrr......

So the past couple of days we have complete loss of boost.

It intermittently returns, but in the main is having none of it.

We have service light. I've read the codes.

BCM-0011 - apparently sticking / stuck EGR valve
ECM-130A - MAF related
ECM-130C - MAF related

Now, I had issues in the past with the MAF and changed it.... everything was peachy.

I'm going to be stripping out the EGR after lunch to give it a clean in the hopes that that will alleviate some of the issue.

However, the MAF side of things is concerning me as it's the second time now that it's played up.

Now I'm very aware that these machines of ours chuck up codes that sometimes mask another issue, I remember A Lex having something similar that was down to the intercooler but cannot for the life of me find his thread.

Any more pointers I should be looking for / checking?

Right, beans on toast time and then having at it!!

Funky Diver · May 15th, 2016, 12:33

Going to check turbo pipes too...

The annoying thing is... there's obvious oily deposits near the EGR air mixer.

Right.... out to it

Funky Diver · May 15th, 2016, 16:08

Well that was all a bit of a waste of time... next up, new MAF sensor.

Tannaton · May 16th, 2016, 00:17

Have you got access to VIDA? I would run some tests to establish whether boost is being commanded, but not delivered, or whether boost is in fact not being commanded at all. It could actually be boosting - you might have a fuel pressure issue? I would have expected to see some more specific codes though.

Funky Diver · May 16th, 2016, 09:14

I do have VIDA, that's where the codes came from...

However, I haven't got around to installing a printer in VMWare, so those were the main codes written down by hand, lol.

They are als o the only codes related to the issue.

The live readings of the MAF are well out of range to where they should be, although they do what it is supposed to. So although the numbers are wrong... the figures drop when the EGR is activated.

I'll see for sure tomorrow when the new MAF gets fitted

I'll have a fart on with the fuel pressure side of stuff later when I've finished work. Could well be a simple thing like a blocked fuel filter... (it is due a change!) however that wouldn't explain the MAF readings.

The DTC indicates that there is an air leak after the MAF, but I can't find one...

Funky Diver · May 17th, 2016, 18:01

Just for posterity really... installed new MAF sensor... voila Boost returns.

cheshired5 · May 17th, 2016, 19:08

Good guess.

Tannaton · May 18th, 2016, 09:41

Good news - nice easy fix.

Funky Diver · May 18th, 2016, 19:15

Quote:

Originally Posted by Tannaton

Good news - nice easy, cheap fix.

I fixed that for you

May 15th, 2016, 11:48	#1
Funky Diver FD Last Online: Aug 23rd, 2023 22:44 Join Date: Jan 2013 Location: Darlington	Complete Loss of Boost Grrrr...... So the past couple of days we have complete loss of boost. It intermittently returns, but in the main is having none of it. We have service light. I've read the codes. BCM-0011 - apparently sticking / stuck EGR valve ECM-130A - MAF related ECM-130C - MAF related Now, I had issues in the past with the MAF and changed it.... everything was peachy. I'm going to be stripping out the EGR after lunch to give it a clean in the hopes that that will alleviate some of the issue. However, the MAF side of things is concerning me as it's the second time now that it's played up. Now I'm very aware that these machines of ours chuck up codes that sometimes mask another issue, I remember A Lex having something similar that was down to the intercooler but cannot for the life of me find his thread. Any more pointers I should be looking for / checking? Right, beans on toast time and then having at it!!

May 16th, 2016, 00:17	#4
Tannaton Bungling Amateur Last Online: Today 00:51 Join Date: Aug 2014 Location: Beverley, East Yorks	Have you got access to VIDA? I would run some tests to establish whether boost is being commanded, but not delivered, or whether boost is in fact not being commanded at all. It could actually be boosting - you might have a fuel pressure issue? I would have expected to see some more specific codes though. __________________ 2011 XC90 D5 Executive 2003 C70 T5 GT 2012 Ford Ranger XL SC 1977 Triumph Spitfire 1500 1976 Massey Ferguson 135

May 17th, 2016, 19:08	#7
cheshired5 Premier Member Last Online: Dec 26th, 2021 13:42 Join Date: Dec 2013 Location: Crewe	Good guess. __________________ 2002 S60 SE D5 Manual 209000 miles

May 18th, 2016, 09:41	#8
Tannaton Bungling Amateur Last Online: Today 00:51 Join Date: Aug 2014 Location: Beverley, East Yorks	Good news - nice easy fix. __________________ 2011 XC90 D5 Executive 2003 C70 T5 GT 2012 Ford Ranger XL SC 1977 Triumph Spitfire 1500 1976 Massey Ferguson 135

May 15th, 2016, 12:33	#2
Funky Diver FD Last Online: Aug 23rd, 2023 22:44 Join Date: Jan 2013 Location: Darlington	Going to check turbo pipes too... The annoying thing is... there's obvious oily deposits near the EGR air mixer. Right.... out to it

May 15th, 2016, 16:08	#3
Funky Diver FD Last Online: Aug 23rd, 2023 22:44 Join Date: Jan 2013 Location: Darlington	Well that was all a bit of a waste of time... next up, new MAF sensor.

May 16th, 2016, 09:14	#5
Funky Diver FD Last Online: Aug 23rd, 2023 22:44 Join Date: Jan 2013 Location: Darlington	I do have VIDA, that's where the codes came from... However, I haven't got around to installing a printer in VMWare, so those were the main codes written down by hand, lol. They are als o the only codes related to the issue. The live readings of the MAF are well out of range to where they should be, although they do what it is supposed to. So although the numbers are wrong... the figures drop when the EGR is activated. I'll see for sure tomorrow when the new MAF gets fitted I'll have a fart on with the fuel pressure side of stuff later when I've finished work. Could well be a simple thing like a blocked fuel filter... (it is due a change!) however that wouldn't explain the MAF readings. The DTC indicates that there is an air leak after the MAF, but I can't find one...

May 17th, 2016, 18:01	#6
Funky Diver FD Last Online: Aug 23rd, 2023 22:44 Join Date: Jan 2013 Location: Darlington	Just for posterity really... installed new MAF sensor... voila Boost returns.

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