lazy terrano11

gazterrano · 01-12-2011, 22:35

hi im new on here bit of info would be great , ive recently bought a terrano 11 2.7 2001 love the car very comfy rides nice starts & stops good . my concern is it likes to plod will maintain 50 60 easily but when it sees an hill at times i feel its a 1.6 pulling me!! . i recently purchased this from a garage with only 84000 ive noticed big increase in mpg also at night with headlights behind me ive spotted black smoke & the tick over seems to have dropped couple hundred revs which now produces a droning noise inside . i mentioned all of these to the dealer from what ive read it seems like the mass air flow sencer but he tells me no as it would kick the engine management light on if it was at fault.. not really sure now if its me or maybe some other prob... id be gratefull for any help or suggestions as you prob know what dealers are like once theyve had there money.. cheers

clivvy · 01-12-2011, 22:45

HI Gaz.

you probably have a Bosch MAF. Easy test, unplug it. Go for a drive, is it the same? if so, its your MAF. Unplugging the MAF on a healthy car would result in a real struggle.

Could also consider EGR *IF* you have one, also air filter, fuel filter. How low are the revs? should be 750rpm give or take, and tick over should sound like a sweet sewing machine!

Black smoke out the back could certainly be MAF etc, but before we start debating on the various issues it could be, start with the maf as its easy. Also, as for the MiL, its not strictly true that it would come on if faulty, theres different levels of fault and tolerances. Is your MiL light actually working?

zippy656 · 01-12-2011, 22:58

like what clivvy said.

sounds MAFish to me..

makeitfit · 01-12-2011, 23:14

Failing MAF won't necessarily make the MIL light up, but may give you a fault code. This can be read to give you a more definitive answer , see downloads on how to read the codes from the ecu

Don't let the stealer off the hook

gazterrano · 01-12-2011, 23:22

Quote:

Originally Posted by makeitfit

Failing MAF won't necessarily make the MIL light up, but may give you a fault code. This can be read to give you a more definitive answer , see downloads on how to read the codes from the ecu

Don't let the stealer off the hook

hi there thanks for reply ive not had any eml on or any codes displayed which leaves me blank . from the dash no warning lights at all like you say it would prob be easier to detect

Fez_uk · 01-12-2011, 23:37

Quote:

Originally Posted by gazterrano

hi there thanks for reply ive not had any eml on or any codes displayed which leaves me blank . from the dash no warning lights at all like you say it would prob be easier to detect

as said above in most cases it does not show up for a faulty maf.

gazterrano · 01-12-2011, 23:14

Quote:

Originally Posted by clivvy

HI Gaz.

you probably have a Bosch MAF. Easy test, unplug it. Go for a drive, is it the same? if so, its your MAF. Unplugging the MAF on a healthy car would result in a real struggle.

Could also consider EGR *IF* you have one, also air filter, fuel filter. How low are the revs? should be 750rpm give or take, and tick over should sound like a sweet sewing machine!

Black smoke out the back could certainly be MAF etc, but before we start debating on the various issues it could be, start with the maf as its easy. Also, as for the MiL, its not strictly true that it would come on if faulty, theres different levels of fault and tolerances. Is your MiL light actually working?

thanks for quick reply ive disconnected the maf seems to have made no difference to the running it had done 20mile unplugged so i plugged it back in again .. off work next week so hopefully be able to find out what may be the cause oh revs when warm prob around 700 as you say just sempt little low but no worries

makeitfit · 01-12-2011, 23:15

It's your MAF then

Try a quick clean with some contact cleaner and a gentle cotton bud action

gazterrano · 01-12-2011, 23:29

Quote:

Originally Posted by makeitfit

It's your MAF then

Try a quick clean with some contact cleaner and a gentle cotton bud action

yeah will do give it a clean on mon as im off work for the week . ive seen some on ebay attractive price but unsure if there maybe cheap china bits tho like the sound of the bosch ones but £225 ouch too near xmas for that one! any views on these as ive never changed one before

makeitfit · 01-12-2011, 23:41

The ecu will store fault codes without displaying MIL, that only comes on when big shit happens and puts the engine in limp mode.
Your just in lazy mode

geoffdown · 01-12-2011, 23:43

Quote:

Originally Posted by gazterrano

yeah will do give it a clean on mon as im off work for the week . ive seen some on ebay attractive price but unsure if there maybe cheap china bits tho like the sound of the bosch ones but £225 ouch too near xmas for that one! any views on these as ive never changed one before

just unplug when u buy new maf u get the tube as well so just take out the big black tube near the air box and replace with new black tube if u have bosch becareful as i think the cheap 1s on ebay are not good hope that helps

rayf3262 · 01-12-2011, 23:44

Black smoke, generally means too much fuel with respect to air.
When the maf gets fouled the ecu will reduce the fueling as the measured air intake volume is less so less fuel required.
Whilst cleaning the maf with a suitable solvent is generally a good thing to do, do check the obvious things like air intake and filter also.
Sounds like it's struggling for air.

01-12-2011, 22:35	#1
gazterrano Senior Member Join Date: Nov 2011 Location: rotherham s.yorks Vehicle: terrano11 2.7tdi Posts: 369	lazy terrano11 hi im new on here bit of info would be great , ive recently bought a terrano 11 2.7 2001 love the car very comfy rides nice starts & stops good . my concern is it likes to plod will maintain 50 60 easily but when it sees an hill at times i feel its a 1.6 pulling me!! . i recently purchased this from a garage with only 84000 ive noticed big increase in mpg also at night with headlights behind me ive spotted black smoke & the tick over seems to have dropped couple hundred revs which now produces a droning noise inside . i mentioned all of these to the dealer from what ive read it seems like the mass air flow sencer but he tells me no as it would kick the engine management light on if it was at fault.. not really sure now if its me or maybe some other prob... id be gratefull for any help or suggestions as you prob know what dealers are like once theyve had there money.. cheers

01-12-2011, 22:45	#2
clivvy Senior Member Join Date: Mar 2009 Location: Huddersfield Vehicle: Terrano 03 LWB Posts: 6,947	HI Gaz. you probably have a Bosch MAF. Easy test, unplug it. Go for a drive, is it the same? if so, its your MAF. Unplugging the MAF on a healthy car would result in a real struggle. Could also consider EGR IF you have one, also air filter, fuel filter. How low are the revs? should be 750rpm give or take, and tick over should sound like a sweet sewing machine! Black smoke out the back could certainly be MAF etc, but before we start debating on the various issues it could be, start with the maf as its easy. Also, as for the MiL, its not strictly true that it would come on if faulty, theres different levels of fault and tolerances. Is your MiL light actually working?

01-12-2011, 22:58	#3
zippy656 Senior Member Join Date: Aug 2008 Location: Devizes Wiltshire Vehicle: Nissan Note Ntec 1.5 Posts: 14,138	like what clivvy said. sounds MAFish to me..

01-12-2011, 23:14	#4
makeitfit Senior Member Join Date: Apr 2008 Location: on the beach WEST WALES Vehicle: Maverick TDi BLACK mmm Posts: 15,136	Failing MAF won't necessarily make the MIL light up, but may give you a fault code. This can be read to give you a more definitive answer , see downloads on how to read the codes from the ecu Don't let the stealer off the hook

01-12-2011, 23:15	#8
makeitfit Senior Member Join Date: Apr 2008 Location: on the beach WEST WALES Vehicle: Maverick TDi BLACK mmm Posts: 15,136	It's your MAF then Try a quick clean with some contact cleaner and a gentle cotton bud action

01-12-2011, 23:41	#10
makeitfit Senior Member Join Date: Apr 2008 Location: on the beach WEST WALES Vehicle: Maverick TDi BLACK mmm Posts: 15,136	The ecu will store fault codes without displaying MIL, that only comes on when big shit happens and puts the engine in limp mode. Your just in lazy mode

01-12-2011, 23:44	#12
rayf3262 Senior Member Join Date: Nov 2009 Location: Norfolk, Poringland NR14 Vehicle: Terrano 3.0 SVE 2002 Posts: 1,549	Black smoke, generally means too much fuel with respect to air. When the maf gets fouled the ecu will reduce the fueling as the measured air intake volume is less so less fuel required. Whilst cleaning the maf with a suitable solvent is generally a good thing to do, do check the obvious things like air intake and filter also. Sounds like it's struggling for air.