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Author Subject: shaking after 3000 rpm
jonv

Seasoned Pro

Location: Thame

Registered: 19 Feb 2006

Posts: 1,088

Status: Offline
Post #1
While driving home today i pulled out of a junction, accelerated: after 3000 rpm the car started to judder and would not accelerate smoothly, changing up a gear allowed an increase in speed but again after about 3k it judders.

it does it in all gears as far a i can tell, and when stationary revving over 3k it produces the same thing - almost like a mis or backfire.

i'm not 100% with engines - any ideas on what it may be?

many thanks in advance

Jon

________________________________________

2000 'W' GTi-6
Posted 4th Mar 2013 at 19:32
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stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline
Post #2
Possibly a dodgy MAP sensor.

Try this test:

With the engine idling, unplug the MAP sensor. The engine should die out straight away. If it doesn't then the MAP sensor is not working correctly.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 4th Mar 2013 at 19:34
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daveyboy

aka Jim Davey

Location: Southampton

Registered: 01 Oct 2007

Posts: 8,648

Status: Online
Post #3
Sounds like its running on three. Check plugs for signs of one being different from the others. Coil packs, plugs or injectors would be the first culprits to check.

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Posted 4th Mar 2013 at 19:35
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bas_306gti

Regular

Location: Eindhoven

Registered: 06 Sep 2012

Posts: 108

Status: Offline
Post #4
if it is running on 3 cil. the engine management light comes on..
Posted 4th Mar 2013 at 20:56
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ed_doe

Regular

Location: Milford

Registered: 26 Aug 2009

Posts: 255

Status: Offline
Post #5
How long does it have to run on 3 for before the eml comes on does anyone know? I've still got an issue with mine where it misses at very light throttle.... Never had an eml come on...

________________________________________

'97 Black Dturbo 110,000miles: SOLD
'99 Ph3 Diablo Gti6 108k RIP
'93 106 1.5n/a d: daily hack YAAAAAWN
'00 Ph3 Astor GTi6 117k Love
Posted 4th Mar 2013 at 21:16
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darzmat

Senior User

Location: nairn

Registered: 14 Jan 2011

Posts: 879

Status: Offline
Post #6
mine ran on 3 last year and eml never came on at all

________________________________________


1997 blaze GTI-6 bought january '11 £800

Spend to date on parts £827.88

Posted 4th Mar 2013 at 22:31
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stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline
Post #7
If it was running on 3 then the OP would have the issue all the way from idle, not just after 3,000rpm unless it is the beginnings of a coil pack starting to break down possibly.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 5th Mar 2013 at 06:16
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ed_doe

Regular

Location: Milford

Registered: 26 Aug 2009

Posts: 255

Status: Offline
Post #8
So I get a miss only in the top inch of throttle at anything above 2k or so. It's jerky etc and throttle response is rubbish until you push past that point.And when coming off the throttle at high rpms inside that 1nch of pedal it sounds like its missing too... Never had an issue with the eml, but does that sound like a coilpack?

Sorry to hikack the thread, but I think we're experiencing simiar issues here!

________________________________________

'97 Black Dturbo 110,000miles: SOLD
'99 Ph3 Diablo Gti6 108k RIP
'93 106 1.5n/a d: daily hack YAAAAAWN
'00 Ph3 Astor GTi6 117k Love
Posted 5th Mar 2013 at 14:57
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beez_neez_gt

Seasoned Pro

Location: @ de limit of adhesion !

Registered: 14 Oct 2008

Posts: 2,916

Status: Offline
Post #9
Coils or the odd one on its way out it seems.

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Posted 5th Mar 2013 at 16:21
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stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline
Post #10
It does sound like the early stages of a coil pack breaking down to be honest...

Take the spark plugs out and see if one looks any different to the rest, this could pinpoint which coil is in trouble.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 5th Mar 2013 at 16:37
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roland rat

Yeeeah Rat fans!

Location: Swansea

Registered: 29 Nov 2006

Posts: 22,284

Status: Offline
Post #11
Your car is simply taking part in the "Harlem Shake" craze

Give it a few days and it will pass Thumbs up
Posted 5th Mar 2013 at 16:38
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