6805 error again

Popeye2468 · Jul 6th, 2017, 20:30

Ok so I have had 6805 error for a few weeks now gone through everything this forum has mentioned

Checked intercooler (was split so replaced)
Checked for vacuum leaks (front and rear engine mounts both leaking both replaced)

Error still present

So I tested everything stripped down turbo governor cleaned it and tested it all is ok

replaced fuel filter

Checked all sensors

I get 6805 when cruising on bypass but if I accelerate slowly error disappears whilst error is on I have no boost

Any help would be greatly appreciated

gmonag · Jul 6th, 2017, 22:06

Which engine/year?

Popeye2468 · Jul 6th, 2017, 22:25

Sorry it's a 54 plate xc90 2.5 D5 diesel AND

Popeye2468 · Jul 6th, 2017, 22:25

AWD sorry lol

volvo for ever · Jul 7th, 2017, 06:47

changing fuel filter wont help you need to make sure housing isnt letting in air put clear tubing on high pressure pump and start it see if you have air..

visually check intercooler has it collapsed or leaking oil
engine pads leaking x2?
charge air hoses leaking
turbo
this iis what makes ecm 6805 come on

regards

Popeye2468 · Jul 7th, 2017, 07:46

With the fuel filter it was on a thread about checking for and fixing 6805 so just thought I would give it a shot.

Well last night I decided to remove the map sensor on the intercooler and give it a spray with electrical cleaner so far the error hasn't co.e on this morning on way to work, but I'm sure it will rear it's ugly head.

Can anyone confirm how the map sensor fits as I noticed slight movement in map sensor as the screw is only on one side do I take of o-ring from map sensor and push map in then put on o-ring or does it just literally push on?

Of my error is not fixed the next step is to get a look at the actuator on the turbo and see if it's free moving if not I'll get the turbo out and clean it.

Also gonna get my kids smoke machine and hook it up to the intake and see if the pipes are leaking but as said before all vacuum is being held properly

I was just hoping that someone knows the fix for this common issue on these cars

gmonag · Jul 7th, 2017, 09:50

If you have eliminated vacuum and turbo actuator problems then I'll bet the IGVs are stuck with carbon.
You could try an in-place clean (Revive, Innotec, Mr Muscle etc) but the only real solution is to remove and clean the turbo.

Popeye2468 · Jul 7th, 2017, 12:03

Ok does anyone have a guide on how to remove and clean etc?

gmonag · Jul 7th, 2017, 12:53

You should try searching first before asking a question like that. However try this for starters:

http://www.volvoforums.org.uk/showpo...45&postcount=5

https://www.youtube.com/watch?v=ilZt2LyxFzU

It is not an easy job. I have the same issue and am considering having someone else do it for me.

Popeye2468 · Jul 7th, 2017, 13:13

Ok ever so sorry I'm relatively new to this forum, yeah that does sound like a pain so what in line cleaner do you recommend?

Jul 6th, 2017, 20:30	#1
Popeye2468 Junior Member Last Online: May 1st, 2018 09:32 Join Date: Jun 2017 Location: Norwich	6805 error again Ok so I have had 6805 error for a few weeks now gone through everything this forum has mentioned Checked intercooler (was split so replaced) Checked for vacuum leaks (front and rear engine mounts both leaking both replaced) Error still present So I tested everything stripped down turbo governor cleaned it and tested it all is ok replaced fuel filter Checked all sensors I get 6805 when cruising on bypass but if I accelerate slowly error disappears whilst error is on I have no boost Any help would be greatly appreciated

Jul 6th, 2017, 22:06	#2
gmonag Premier Member Last Online: Jan 15th, 2024 17:24 Join Date: Jun 2010 Location: Bury St Edmunds	Which engine/year? __________________ Greg

Jul 7th, 2017, 09:50	#7
gmonag Premier Member Last Online: Jan 15th, 2024 17:24 Join Date: Jun 2010 Location: Bury St Edmunds	If you have eliminated vacuum and turbo actuator problems then I'll bet the IGVs are stuck with carbon. You could try an in-place clean (Revive, Innotec, Mr Muscle etc) but the only real solution is to remove and clean the turbo. __________________ Greg

Jul 7th, 2017, 12:53	#9
gmonag Premier Member Last Online: Jan 15th, 2024 17:24 Join Date: Jun 2010 Location: Bury St Edmunds	You should try searching first before asking a question like that. However try this for starters: http://www.volvoforums.org.uk/showpo...45&postcount=5 https://www.youtube.com/watch?v=ilZt2LyxFzU It is not an easy job. I have the same issue and am considering having someone else do it for me. __________________ Greg Last edited by gmonag; Jul 7th, 2017 at 12:56.

Jul 6th, 2017, 22:25	#3
Popeye2468 Junior Member Last Online: May 1st, 2018 09:32 Join Date: Jun 2017 Location: Norwich	Sorry it's a 54 plate xc90 2.5 D5 diesel AND

Jul 7th, 2017, 06:47	#5
volvo for ever Premier Member Last Online: Feb 4th, 2023 15:10 Join Date: Apr 2015 Location: uk	changing fuel filter wont help you need to make sure housing isnt letting in air put clear tubing on high pressure pump and start it see if you have air.. visually check intercooler has it collapsed or leaking oil engine pads leaking x2? charge air hoses leaking turbo this iis what makes ecm 6805 come on regards

Jul 7th, 2017, 07:46	#6
Popeye2468 Junior Member Last Online: May 1st, 2018 09:32 Join Date: Jun 2017 Location: Norwich	With the fuel filter it was on a thread about checking for and fixing 6805 so just thought I would give it a shot. Well last night I decided to remove the map sensor on the intercooler and give it a spray with electrical cleaner so far the error hasn't co.e on this morning on way to work, but I'm sure it will rear it's ugly head. Can anyone confirm how the map sensor fits as I noticed slight movement in map sensor as the screw is only on one side do I take of o-ring from map sensor and push map in then put on o-ring or does it just literally push on? Of my error is not fixed the next step is to get a look at the actuator on the turbo and see if it's free moving if not I'll get the turbo out and clean it. Also gonna get my kids smoke machine and hook it up to the intake and see if the pipes are leaking but as said before all vacuum is being held properly I was just hoping that someone knows the fix for this common issue on these cars

Jul 7th, 2017, 12:03	#8
Popeye2468 Junior Member Last Online: May 1st, 2018 09:32 Join Date: Jun 2017 Location: Norwich	Ok does anyone have a guide on how to remove and clean etc?

Jul 7th, 2017, 13:13	#10
Popeye2468 Junior Member Last Online: May 1st, 2018 09:32 Join Date: Jun 2017 Location: Norwich	Ok ever so sorry I'm relatively new to this forum, yeah that does sound like a pain so what in line cleaner do you recommend?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)