displaying posts 1 to 24 of 24

Author Subject: low power from idle
jimmyhackers

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Location: birmingham

Registered: 14 Jun 2011

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Post #1
for the past few days ive finally been driving my 6 on the road, and finding and fixing numerous little squeaks and rattles etc...

ive noticed it seems like it almost wants to stall on take off from standing, i have to blip the throttle a bit some times (depending on gradient) to stop it from conking out.. when im moving its ok but does seem lacking in the lower revs (1000-2500) compared to my old gti. past 2500 its back to heaven again Big grin

the idles fine and it starts and runs no problem. i noticed a similar thread and talk of the PAS sensor or ICV. could either of these cause my described issues?

the only other diference i think i can notice is that the engine has....a vibrating throb feeling/noise to it at idle that my other gti didnt, doesnt seem like a rev change (needle doesnt move) but it might be so small of a change that i pick it up with my ears better than the needle can show it to me.

i should have spares of either sensor, however these will be off the engine that flew out my crashed car some 20meters : S.

visually there untouched (god knows how) whats the worst that can happen by swapping/trial-error

thanks in advance for the advice
jim

p.s. i have nearly every other sensor (just not the fuel guage sender Sad ) off the crashed car so if you think anything else may be the culprit let me know

________________________________________

the world is changed by people in sheds
Posted 4th Aug 2013 at 01:09
stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline

Post #2
Unplug the lambda and see if makes any difference.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 4th Aug 2013 at 08:33
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,839

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Post #3
Speedo working?

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Posted 4th Aug 2013 at 09:22
swiftyboi006

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Location: Maidenhead

Registered: 12 Apr 2010

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Post #4
Pss and icv wouldnt effect you pulling away they usually play up when off the power pedal. Id def go for the lambda

________________________________________

cherry p1.....SOLD (regreting this)
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Posted 4th Aug 2013 at 10:36
jimmyhackers

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Post #5
i dont think its the lambda....well i hope its not.

i bought it about a year ago from pug with the intention of fitting it to my white car. i crashed it before that happened and it never came out its box. so yeah my lambda is....essentially brand new.

you think it could still be this?

________________________________________

the world is changed by people in sheds
Posted 4th Aug 2013 at 11:30
jimmyhackers

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Location: birmingham

Registered: 14 Jun 2011

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Post #6
speedos working, everything on the car seems to be ok, as in nothings obviously wrong.

its had new air, oil and fuel filter, spark plugs, o2 sensor, coolant is now spotless.

i was thinking ICV becuase its essentially a secondary/aux throttle plate of sorts right?
i cleaned out my throttle body insides a few weeks ago, was black inside. i figured this coating could also be insided the ICV and cause it to not open as quick or as fully as it should?

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the world is changed by people in sheds
Posted 4th Aug 2013 at 11:38
RetroPug

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Location: Leicestershire

Registered: 15 Jan 2013

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Post #7
In any case, cleaning the ICV is a very quick job and will make the car idle & run better, if you don't break it (I've read on here that they're fragile).

I had no problems cleaning mine gently with brake cleaner after removing the o-rings.

If it is on the original, uncleaned ICV it will almost certainly be coated in gunk and be in need of cleaning anyway, regardless of whether or not it is the root of this problem. So I reckon it's worth doing anyway.

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61k miles Ph.1 Diablo '6 Project Thread
Posted 4th Aug 2013 at 11:43
eliotrw

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Location: Southwark

Registered: 18 Jul 2010

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Post #8
welshpug! wrote:
Speedo working?

If it wasnt what would it point too out of interest?

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Ex- Phase 3 China GTi-6 T-Reg
Posted 4th Aug 2013 at 12:44
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,839

Status: Offline

Post #9
vss, this will cause low rpm flatspots.

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need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 4th Aug 2013 at 12:58
buzzbrightyear

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Location: hiding all receipts for car

Registered: 09 Jul 2008

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Post #10
Question is do you like feeling a vibrating throbbing?

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Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1
Posted 4th Aug 2013 at 13:00
gilesy

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Location: Greenwich - in that London

Registered: 03 Apr 2006

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Post #11
Love
Posted 4th Aug 2013 at 13:25
jimmyhackers

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Post #12
i knew when i was typing that as a description id get some lurid/lewd responces about it Smile

and no i dont like it....its like the car has an alternating natural resonance. i want a solid/stationary resonance.

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the world is changed by people in sheds
Posted 4th Aug 2013 at 14:35
jimmyhackers

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Post #13
may sound silly but i havnt reset the ecu since ive changed all my above mentioned gubbins. will this make a difference? have read up you can just unplug ecu or disconnect battery for 10 mins.

and on this tangent but a slightly different direction. way before all that was changed i have had the battery disconnected for a fair while (battery relocation mod).

when reconnecting the battery back up i didnt have the key in the ignition position. could this be effecting/contributing my alarm problem i posted in another section?

thanks again for the help so far
jim

________________________________________

the world is changed by people in sheds
Posted 4th Aug 2013 at 14:41
buzzbrightyear

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Post #14
so u like a big solid mass resonating inside you?

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andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1
Posted 4th Aug 2013 at 18:11
jimmyhackers

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Post #15
tried ecu reset...no luck there.. took it for a spin..seemed marginally better and then it quietly cut out under braking just as i was coming to a stop.

its like whenever i let off the throttle the revs drop and combing that with any extra little bit of braking makes the needle dip more so.

im gonna take of my icv see how grubby it is.

________________________________________

the world is changed by people in sheds
Posted 4th Aug 2013 at 18:54
jimmyhackers

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Post #16
buzzbrightyear wrote:
so u like a big solid mass resonating inside you?


u've got it a little mixed up there, your misses likes my big solid mass resonating inside her.

________________________________________

the world is changed by people in sheds
Posted 4th Aug 2013 at 18:56
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,839

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Post #17
headgasket fooked.

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need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 4th Aug 2013 at 18:59
coskev

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Location: Oswestry

Registered: 01 Nov 2009

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Post #18
jimmyhackers wrote:
tried ecu reset...no luck there.. took it for a spin..seemed marginally better and then it quietly cut out under braking just as i was coming to a stop.


Did you turn on heater/headlights/heated rear window when fired it up after ecu reset?

Should leave these on for a while so the engine is under load for the ecu to learn valuesThumbs up

Reset ecu again while you clean icvSmile

________________________________________

Red GTB1756 powered Fabia VRS daily driver,LBSC Gti6 eater........

Mac1 ZR R1 kit car build in progress.
Posted 4th Aug 2013 at 19:17
jimmyhackers

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Post #19
ok.....

i read the last message after i fitted a new icv off the crashed car, took it apart and cleaned it up and put it on. i also took apart the one i removed and cleaned that for the hell of it (was in worse state)

the problems fixed......however......before i got to fixing it i had to reattach my normal battery as my lightweight race one under my passenger seat had finally packed in (0.0v Sad )

the car took a long time turning over and then fired up and cut out, i then tried turing over with some throttle and it started and ran fine. i turned it off and on to check and it was back to a good/normal startup.

do i really need to do another ecu reset with all the electrics on??
is the therory behind this the extra load on the engine caused by the alternator, will make the cars ecu feel the need to push itself that little bit harder at idle?

cheers again for all the help

jim

________________________________________

the world is changed by people in sheds
Posted 4th Aug 2013 at 20:28
coskev

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Location: Oswestry

Registered: 01 Nov 2009

Posts: 3,132

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Post #20
Yeah thats the idea as far as I knowThumbs up

Just try it down the road, if you get stallng probs etc try the reset and load up the eng on restartYes

Leave ticking over for about 10mins with it all on has allways seemed right for meWink

________________________________________

Red GTB1756 powered Fabia VRS daily driver,LBSC Gti6 eater........

Mac1 ZR R1 kit car build in progress.
Posted 4th Aug 2013 at 20:54
buzzbrightyear

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Post #21
jimmyhackers wrote:
buzzbrightyear wrote:
so u like a big solid mass resonating inside you?


u've got it a little mixed up there, your misses likes my big solid mass resonating inside her.

LOL
Waiting for stan to say not necessary, please tone it down.

________________________________________

andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1
Posted 4th Aug 2013 at 22:38
jimmyhackers

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Location: birmingham

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Post #22
if i tone it down i dont think she'd enjoy our time together as much Sad

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the world is changed by people in sheds
Posted 5th Aug 2013 at 01:58
buzzbrightyear

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Post #23
well you've defiantly brought her tone down and her standards by a huge amount

________________________________________

andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1
Posted 5th Aug 2013 at 12:19
jimmyhackers

Seasoned Pro

Location: birmingham

Registered: 14 Jun 2011

Posts: 1,149

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Post #24
yeah took it for a spin last night, she cut out under braking again.

did an ecu reset under load this morning and so far so good.

thanks for the help guys

________________________________________

the world is changed by people in sheds
Posted 5th Aug 2013 at 16:04

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