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displaying posts 1 to 19 of 19
| Author | Subject: Poor MPG after Head change |
 vernam616
Seasoned Pro  Location: Middlesbrough Registered: 01 Mar 2008 Posts: 2,822 Status: Offline |
Post #1
Hi AllAs some may know, i recently had the head gasket changed on the Rallye, however since getting the car back ive noticed a loss of power and very poor MPG Anyone know what could be causing this? I f*cking hate this car  ________________________________________ Audi S3 Black Edition |
 Posted 3rd Nov 2010 at 03:48
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darkgti6
Seasoned Pro  Location: Bracknell Registered: 07 Jun 2008 Posts: 1,361 Status: Offline |
Post #2
Who did the head gasket?________________________________________ Team Peugeot Sport 308 Gti�Black T'99 Gti - may she rest in peace - written off in a shunt on the A329m |
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Posted 3rd Nov 2010 at 03:55
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cwspellowe
Seasoned Pro  Location: Calderbank Registered: 19 Jul 2009 Posts: 6,496 Status: Offline |
Post #3
Were the cams advanced/retarded previously?Personally i'd get it back to the person who did the work and get a pressure test done ________________________________________ Bye bye Sundance Kid |
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Posted 3rd Nov 2010 at 04:03
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darkgti6
Seasoned Pro Location: Bracknell Registered: 07 Jun 2008 Posts: 1,361 Status: Offline |
Post #4
Who did the head gasket?________________________________________ Team Peugeot Sport 308 Gti�Black T'99 Gti - may she rest in peace - written off in a shunt on the A329m |
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Posted 3rd Nov 2010 at 04:06
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smegal
Seasoned Pro  Location: Leeds Registered: 26 Dec 2005 Posts: 5,940 Status: Offline |
Post #5
Check all pipework for leaks etc. Also check the exhaust for blows. It may need to go on a diag though in case a sensor wire has been pinched or something. Also as CWS said the cams may of been adjusted differently. ________________________________________ Ex SC-6Now in a Megane R26 |
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Posted 3rd Nov 2010 at 04:08
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midlife
Seasoned Pro  Location: Colne, Lancashire Registered: 13 Mar 2006 Posts: 7,544 Status: Offline |
Post #6
I'm surprised no one has said check the lambda sensor on the exhaust is connected!!!!I'll take my prize in naughty pics of your mrs please   ________________________________________ Get used to seeing the yellow one !!! Team 330™ Team "no front end or engine" Team "LIMITED EDITION" I live for the 306 sticker  Team 0-60 in 6.44 & standing qtr in 14.808 @ 94.55mph all with std engine 203bhp Corolla T-Sport daily driver stealthier than Kwai Chang Caine |
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Posted 3rd Nov 2010 at 04:23
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smegal
Seasoned Pro Location: Leeds Registered: 26 Dec 2005 Posts: 5,940 Status: Offline |
Post #7
It would be funny if it was that simple. Easy to miss I guess.________________________________________ Ex SC-6Now in a Megane R26 |
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Posted 3rd Nov 2010 at 04:25
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #8
Cam timing or lambda not connected... ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone  |
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Posted 3rd Nov 2010 at 05:25
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vernam616
Seasoned Pro Location: Middlesbrough Registered: 01 Mar 2008 Posts: 2,822 Status: Offline |
Post #9
stan_306gti6 wrote: Cam timing or lambda not connected... Thanks, lambda not connected has crossed my mind, will check this weekend Hg was done by a garage ________________________________________ Audi S3 Black Edition |
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Posted 3rd Nov 2010 at 12:04
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vernam616
Seasoned Pro Location: Middlesbrough Registered: 01 Mar 2008 Posts: 2,822 Status: Offline |
Post #10
vernam616 wrote: stan_306gti6 wrote: Cam timing or lambda not connected... Thanks, lambda not connected has crossed my mind, will check this weekend Hg was done by a garage other than poor mpg and slight loss of power the car runs/drives spot on ________________________________________ Audi S3 Black Edition |
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Posted 3rd Nov 2010 at 12:26
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mabgti
NV motors  Location: Bham tunnel @7400rpm Registered: 28 Aug 2003 Posts: 9,127 Status: Offline |
Post #11
is it still running a cat?its hard to determine these things, you need to get it on datalog and check your sensors before anything.. ________________________________________ Team Supercharged Gti-6NV Motorsport Automotive Performance Tuning 0121 448 7515 ECU Remapping/ DPF removal VAG/BMW Diag and Option Coding Peugeot Planet ECU coding/transponder programming etc www.nvmotorsport.com Facebook Page Project S6 |
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Posted 3rd Nov 2010 at 15:49
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greenbelt
Seasoned Pro  Location: How's Life In London? Registered: 23 Apr 2006 Posts: 1,961 Status: Offline |
Post #12
Check the insulation on the wires that connect to the CTS sensor  ________________________________________ Standard Black 6Black HBSC6  |
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Posted 3rd Nov 2010 at 16:46
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ablister
Senior User  Location: fife Registered: 30 Oct 2005 Posts: 522 Status: Offline |
Post #13
cwspellowe wrote: Were the cams advanced/retarded previously? Personally i'd get it back to the person who did the work and get a pressure test done why? ________________________________________ 306 rallye, Richard Longman enginerc10gt |
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Posted 4th Nov 2010 at 00:22
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline |
Post #14
because they "fixed" it and its still not right  ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 4th Nov 2010 at 00:34
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vernam616
Seasoned Pro Location: Middlesbrough Registered: 01 Mar 2008 Posts: 2,822 Status: Offline |
Post #15
mabgti wrote: is it still running a cat? its hard to determine these things, you need to get it on datalog and check your sensors before anything.. Car is running totally standard barring a K&N Ill drop down there on saturday morning, hes a good mechanic and have no doubts he wont sort it  ________________________________________ Audi S3 Black Edition |
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Posted 4th Nov 2010 at 00:55
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dalton88
Newbie  Location: warwickshire Registered: 05 Feb 2010 Posts: 18 Status: Offline |
Post #16
might want to check the inlet manifold gasket. Might not of been replaced when the head gasket was replaced and is sucking in air when it shouldnt be. |
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Posted 4th Nov 2010 at 01:56
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teo79
Junior User Location: wrexham Registered: 15 Apr 2007 Posts: 56 Status: Offline |
Post #17
Id get a compresion test done first he may have missed a warped cylinder head! Has the car ever overheated?________________________________________ tjones |
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Posted 4th Nov 2010 at 02:07
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vernam616
Seasoned Pro Location: Middlesbrough Registered: 01 Mar 2008 Posts: 2,822 Status: Offline |
Post #18
teo79 wrote: Id get a compresion test done first he may have missed a warped cylinder head! Has the car ever overheated? Cylinder head was sent off to be pressure tested and skimmed and surely would have been picked up by them The car did overheat but was before the red area ________________________________________ Audi S3 Black Edition |
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Posted 4th Nov 2010 at 02:21
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vernam616
Seasoned Pro Location: Middlesbrough Registered: 01 Mar 2008 Posts: 2,822 Status: Offline |
Post #19
dalton88 wrote: might want to check the inlet manifold gasket. Might not of been replaced when the head gasket was replaced and is sucking in air when it shouldnt be. All them gaskets were replaced, the lad i use is very trustworthy + if it was drawing air in from there it would more than likely run rough  ?________________________________________ Audi S3 Black Edition |
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Posted 4th Nov 2010 at 02:22
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