Lumpy at ~ 1800 RPM only

DarylVolvo · Aug 24th, 2018, 20:47

I've previously had EGR and associated pipes and cooler all replaced/repaired under warranty, that was all about 6k miles ago.

Present issue is lumpy running at around 1800 - 2000 rpm, car is fine throughout the rest of the range including up top. It sprang up a MAF warning (P0101 and P014C) last week. I have replaced it but same issue is present, I cant find any leak in the inlet hose and the air filter is good. Do I need to disconnect battery for 10 minuntes or so to reset ECU now that I have a new MAF?

I want to get access to throttle body next to remove and clean it up, is it possible to access without engine removal...? I can get by with engines but I ain't a mechanic and would'nt have access to a hoist etc.

It's a V60 2014 D4. Really enjoy the car but finding this frustrating...

globula · Aug 26th, 2018, 19:08

Quote:

Originally Posted by DarylVolvo

I've previously had EGR and associated pipes and cooler all replaced/repaired under warranty, that was all about 6k miles ago.

Present issue is lumpy running at around 1800 - 2000 rpm, car is fine throughout the rest of the range including up top. It sprang up a MAF warning (P0101 and P014C) last week. I have replaced it but same issue is present, I cant find any leak in the inlet hose and the air filter is good. Do I need to disconnect battery for 10 minuntes or so to reset ECU now that I have a new MAF?

I want to get access to throttle body next to remove and clean it up, is it possible to access without engine removal...? I can get by with engines but I ain't a mechanic and wouldn't have access to a hoist etc.

It's a V60 2014 D4. Really enjoy the car but finding this frustrating...

The turbo usually kicks in at 1750, so I would advise to see if you have any damage to the blades, maybe you have some missing ones and the pressure is not building up till it revs even higher.

barrybritcher · Aug 26th, 2018, 19:17

AFAIK diesels dont have a throttle!

DarylVolvo · Aug 26th, 2018, 23:21

It's right around where the turbo is kicking in, unfortunately I can't get access to check this out myself. Could do without a trip to the dealers. Local mechanic can have a look. Thanks

DarylVolvo · Oct 2nd, 2018, 16:20

For the record, this turned out to be an intercooler hose. Which one I don't yet know.

volvo for ever · Oct 5th, 2018, 04:51

Also check Emap pipe for blockage remove sensor 27 mm deep socket start engine feel if any air coming through pipe if not replace emap pipe

Aug 24th, 2018, 20:47	#1
DarylVolvo New Member Last Online: May 12th, 2021 19:41 Join Date: Aug 2018 Location: Glounthaune	Lumpy at ~ 1800 RPM only I've previously had EGR and associated pipes and cooler all replaced/repaired under warranty, that was all about 6k miles ago. Present issue is lumpy running at around 1800 - 2000 rpm, car is fine throughout the rest of the range including up top. It sprang up a MAF warning (P0101 and P014C) last week. I have replaced it but same issue is present, I cant find any leak in the inlet hose and the air filter is good. Do I need to disconnect battery for 10 minuntes or so to reset ECU now that I have a new MAF? I want to get access to throttle body next to remove and clean it up, is it possible to access without engine removal...? I can get by with engines but I ain't a mechanic and would'nt have access to a hoist etc. It's a V60 2014 D4. Really enjoy the car but finding this frustrating...

Aug 26th, 2018, 19:17	#3
barrybritcher Flaccid Member Last Online: Apr 15th, 2024 16:09 Join Date: Nov 2016 Location: Norwich	AFAIK diesels dont have a throttle! __________________ 2001 Volvo S60 T5 SE 2.3 Geartronic (Scrapped) 2007 Volvo S60 T5 SE 2.4 Geartronic (Sold) 2008 Volvo V70 D5 SE Sport Geartronic (Current)

Aug 26th, 2018, 23:21	#4
DarylVolvo New Member Last Online: May 12th, 2021 19:41 Join Date: Aug 2018 Location: Glounthaune	It's right around where the turbo is kicking in, unfortunately I can't get access to check this out myself. Could do without a trip to the dealers. Local mechanic can have a look. Thanks

Oct 2nd, 2018, 16:20	#5
DarylVolvo New Member Last Online: May 12th, 2021 19:41 Join Date: Aug 2018 Location: Glounthaune	For the record, this turned out to be an intercooler hose. Which one I don't yet know.

Oct 5th, 2018, 04:51	#6
volvo for ever Premier Member Last Online: Feb 4th, 2023 15:10 Join Date: Apr 2015 Location: uk	Also check Emap pipe for blockage remove sensor 27 mm deep socket start engine feel if any air coming through pipe if not replace emap pipe

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