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displaying posts 1 to 22 of 22
| Author | Subject: Help supercharge idle and stalling at low revs |
 7057sam
Seasoned Pro  Location: Stowmarket,Suffolk Registered: 18 Apr 2009 Posts: 2,080 Status: Offline |
Post #1
Hi guys I v recently fitting a low boost kit and bigger(maybe high boost)intercooler.i also hsve the 2nd relized rich w map. Problem is lumpy idle will stall if I dont rev but fine after iv been driving.Also under 3k fines abit lumpy puts really well though. Any help guys ________________________________________ Rallye build: 11 November 1998 - a WednesdayTeam rallye,built for track ----Click this if you like rallyes Rallye dead  Secret Team Astor... |
 Posted 10th Jul 2013 at 11:12
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rallyestyle
Seasoned Pro  Location: London Registered: 23 Jul 2003 Posts: 14,990 Status: Offline |
Post #2
Could be numerous things.Has it only happened since you installed the SC kit? ________________________________________ Just Drive It |
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Posted 10th Jul 2013 at 11:31
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eliotrw
Seasoned Pro  Location: Southwark Registered: 18 Jul 2010 Posts: 4,864 Status: Offline |
Post #3
As far as i can tell, This basically happens mainly with people with a the high boost cooler, Probably due to the fact that you have deviated slightly from what the base map is made for.I.e the smaller "low boost size cooler" ________________________________________ Ex- Phase 3 China GTi-6 T-Reg |
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Posted 10th Jul 2013 at 11:57
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7057sam
Seasoned Pro Location: Stowmarket,Suffolk Registered: 18 Apr 2009 Posts: 2,080 Status: Offline |
Post #4
Icv was fine before install, so if I run low boost pipe work and cooler should be ok?________________________________________ Rallye build: 11 November 1998 - a WednesdayTeam rallye,built for track ----Click this if you like rallyes Rallye dead Secret Team Astor... |
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Posted 10th Jul 2013 at 12:55
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spiky
Seasoned Pro  Location: Cardiff Registered: 13 Oct 2006 Posts: 2,310 Status: Offline |
Post #5
i run high boost cooler, mine has never stalledbut i also dont have ac and pas plugged in ________________________________________ Do you need a 205 > 306 gti6 plug and go engine loom? PM METORQUES for all your braided fuel line needs MY YouTube Videos' SUPERCHARGED 205 GTI6.... are you Fooking nuts!.... ummmm YIP  268+BHP and 860kg = FUN |
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Posted 10th Jul 2013 at 13:00
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rallyestyle
Seasoned Pro Location: London Registered: 23 Jul 2003 Posts: 14,990 Status: Offline |
Post #6
spiky wrote: i run high boost cooler, mine has never stalled but i also dont have ac and pas plugged in Same here. While i have had some similar issues recently i had no problems for 2 years with the high boost cooler setup  ________________________________________ Just Drive It |
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Posted 10th Jul 2013 at 13:22
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Carl Chambers
Seasoned Pro  Location: suffolk/norfolk Registered: 10 Sep 2004 Posts: 2,897 Status: Offline |
Post #7
Size of the cooler should not affect it, more like the ICV is faulty, the pas sensor or lambda sensor. or may just need a tweak to the map?________________________________________ Carl Chambersemail; pugnacious.peugeot@yahoo.co.uk . C.M.CHAMBERS CARS Peugeot Specialist Tel; 01379 586101 after 6.30 or 07889 082466 anytime. pugsport-racing.co.uk |
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Posted 10th Jul 2013 at 13:43
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #8
Carl Chambers wrote: Size of the cooler should not affect it, more like the ICV is faulty, the pas sensor or lambda sensor. or may just need a tweak to the map? The problem is though, is that the size of the cooler does affect it, depending on what map is loaded onto the ECU. The reason for this is because the ICV which used to control the airflow just in the inlet plenum, is now having to control the airflow in the charger, pipework, cooler AND the plenum. So it's doing A LOT more work than what it was originally designed for. The problem is more apparant with a larger cooler as there is even more surface area for the ICV to control. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone  |
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Posted 10th Jul 2013 at 14:17
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7057sam
Seasoned Pro Location: Stowmarket,Suffolk Registered: 18 Apr 2009 Posts: 2,080 Status: Offline |
Post #9
Lee runs high boost pipes and pipes? Rich as told me people do so just need to find how they do it.The car amazing quite but when they no revs going it will drop they stall even blipping the throttle its 50/50 whether it stalls.Spiky what map do you run? I have the low boost v2 ________________________________________ Rallye build: 11 November 1998 - a WednesdayTeam rallye,built for track ----Click this if you like rallyes Rallye dead Secret Team Astor... |
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Posted 10th Jul 2013 at 15:28
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #10
Yes, it can and has been done. However, the ICV still suffers. Lee's is pretty reliable without stalling, but he still gets the odd stall. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 10th Jul 2013 at 19:36
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armzsc6
Seasoned Pro  Location: Crowborough Registered: 22 Mar 2008 Posts: 3,445 Status: Offline |
Post #11
I had similar issues Sam since installing my supercharger kit a year or so ago. I tried various ICV's to no effect, had codes read numerous times and no codes and still did it. Recently I tweaked the throttle body so it never quite fully closes and it improved things a little but still did it. Only a few weeks ago me and a mate Welded up my top engine mount and wedged it more solidly as well as I fitted an uprated lower mount. At the same time I fitted the larger of the 2 boat restrictor rings before getting the car rolling roaded and since I did those 2 things its a hell of a lot better. Rarely stalls at all now where as before often if you started the car it wouldn't catch the idle and would stall fraught away when the revs drop. I'll show you what to tweak on Sunday of you like. It's worth noting though that since I fitted the Rich W flywheel and pulley the car does not run smoothly when cold at all. It coughs and splutters particularly at low revs when coolant temp is below 70 and sometimes is a pig to drive like it. Once warm it's fine. I'm not the only one who has had spluttering since fitting the flywheel It's to be expected though running a generic map. However my rolling road torque and bhp graphs were perfect considering its a generic map. ________________________________________ Black power baby! SUUUUUPERCHARGED Seat Leon FR TDI 190BHP 300lbft daily gti-6 killer :p 12x 306's owned so far Cambelts, clutches, service work carried out on All makes and models, Peugeot Citroen / mitsubishi specialist. Pug planet / Citroen Lexia diagnostics / code reads available. |
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Posted 10th Jul 2013 at 19:46
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armzsc6
Seasoned Pro Location: Crowborough Registered: 22 Mar 2008 Posts: 3,445 Status: Offline |
Post #12
Mine is also on version 2 btw and while I think about it are all your boost hoses solid inside or reinforced with aluminium piping? They collapse under idle otherwise and also contribute largely to stalling.________________________________________ Black power baby! SUUUUUPERCHARGED Seat Leon FR TDI 190BHP 300lbft daily gti-6 killer :p 12x 306's owned so far Cambelts, clutches, service work carried out on All makes and models, Peugeot Citroen / mitsubishi specialist. Pug planet / Citroen Lexia diagnostics / code reads available. |
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Posted 10th Jul 2013 at 19:48
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Carl Chambers
Seasoned Pro Location: suffolk/norfolk Registered: 10 Sep 2004 Posts: 2,897 Status: Offline |
Post #13
stan_306gti6 wrote: Carl Chambers wrote: Size of the cooler should not affect it, more like the ICV is faulty, the pas sensor or lambda sensor. or may just need a tweak to the map? The problem is though, is that the size of the cooler does affect it, depending on what map is loaded onto the ECU. The reason for this is because the ICV which used to control the airflow just in the inlet plenum, is now having to control the airflow in the charger, pipework, cooler AND the plenum. So it's doing A LOT more work than what it was originally designed for. The problem is more apparant with a larger cooler as there is even more surface area for the ICV to control. just needs a tweak on the map then as said? the ecu should see its going to stall and react to it. yes there is more air there but still should not really affect it as the ecu sees the rpm so opens the icv till the rpm pics up. Got to remember Sam all the wiring has been changed for another engine loom and another ecu was fitted which you don't know how good it is? we had to put another second hand map sensor in so you had the later type so again don't know how good that was. And the PAS sensor is a different one that came in the modified pipes, so again unknown if its good? Might be worth reading the ecu see if there is any faults before jumping to a smaller cooler. ________________________________________ Carl Chambersemail; pugnacious.peugeot@yahoo.co.uk . C.M.CHAMBERS CARS Peugeot Specialist Tel; 01379 586101 after 6.30 or 07889 082466 anytime. pugsport-racing.co.uk |
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Posted 10th Jul 2013 at 20:04
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eliotrw
Seasoned Pro Location: Southwark Registered: 18 Jul 2010 Posts: 4,864 Status: Offline |
Post #14
Obviously it could be a sensor playing up, or a boost leak, Or as x69 RGG found, a dodgy angle on the map sensor wiring.BUT There is overwhelming evidence on this very forum that if you have a lowboost sc 6, fit a high boost intercooler And don't have a custom map, You will get a bit of stalling. Almost all of those with "low boost intercoolers" don't have any issues which is not a coincidence.. Look at all these links and tell me you don't arrive at the same conclusion. NOTE: In x69rgg's case, Once he fixed the wiring the problem went, But he has a low boost cooler. http://www.306gti6.com/forum/showthread.php?id=108932 Petes fixes his with sensors here (low boost cooler) http://www.306gti6.com/forum/showthread.php?id=156062&page=1 And in here, Word from the man himself: http://www.306gti6.com/forum/showthread.php?id=75851&page=23 Key sentence (richw) Small intercoolers don't really suffer from it. ________________________________________ Ex- Phase 3 China GTi-6 T-Reg |
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Posted 10th Jul 2013 at 21:18
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simonjames
Seasoned Pro  Location: Whitland S.Wales Registered: 23 Nov 2004 Posts: 6,219 Status: Offline |
Post #15
I had running issues when i first got mine up and running, i too thought it could be down to the larger high boost style cooler, i changed icv map sensors but the fault stayed, i have since stripped the fuel pump to find pick up filter was a little clogged, mine was giving problems more with accelerating, the stalling can only be down a leak on air intake id say or sensor________________________________________ All South Wales Members Click HereTeam Supercharged Black RALLYE ™ (Click Here for Build Project) MY EBAY ITEMS 07943066306 |
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Posted 10th Jul 2013 at 22:03
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funkymonk
Regular  Location: Westbury Registered: 13 Jul 2006 Posts: 317 Status: Offline |
Post #16
Hi Sam, can you get a video? Idle was solid and it was fine through the range including sub 3k so suspect it has uncovered a weakness elsewhere or a small boost leak. Well done for getting it in how you finding it?________________________________________ There are only 10 kinds of people in this world, those that understand binary and those that don't... |
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Posted 11th Jul 2013 at 00:04
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spiky
Seasoned Pro Location: Cardiff Registered: 13 Oct 2006 Posts: 2,310 Status: Offline |
Post #17
7057sam wrote: Lee runs high boost pipes and pipes? Rich as told me people do so just need to find how they do it.The car amazing quite but when they no revs going it will drop they stall even blipping the throttle its 50/50 whether it stalls. Spiky what map do you run? I have the low boost v2 i dont know sorry, as i bought my kit secondhand ________________________________________ Do you need a 205 > 306 gti6 plug and go engine loom? PM METORQUES for all your braided fuel line needs MY YouTube Videos' SUPERCHARGED 205 GTI6.... are you Fooking nuts!.... ummmm YIP 268+BHP and 860kg = FUN |
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Posted 15th Jul 2013 at 09:34
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7057sam
Seasoned Pro Location: Stowmarket,Suffolk Registered: 18 Apr 2009 Posts: 2,080 Status: Offline |
Post #18
Now sorted big thanks to carl chambers.We changed over the icv and pas sensor, now idle spot on  ________________________________________ Rallye build: 11 November 1998 - a WednesdayTeam rallye,built for track ----Click this if you like rallyes Rallye dead Secret Team Astor... |
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Posted 15th Jul 2013 at 12:45
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spiky
Seasoned Pro Location: Cardiff Registered: 13 Oct 2006 Posts: 2,310 Status: Offline |
Post #19
great news________________________________________ Do you need a 205 > 306 gti6 plug and go engine loom? PM METORQUES for all your braided fuel line needs MY YouTube Videos' SUPERCHARGED 205 GTI6.... are you Fooking nuts!.... ummmm YIP 268+BHP and 860kg = FUN |
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Posted 15th Jul 2013 at 12:49
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7057sam
Seasoned Pro Location: Stowmarket,Suffolk Registered: 18 Apr 2009 Posts: 2,080 Status: Offline |
Post #20
With stalling if you clutch down for complete stops between 1-0 revs the icv has always caught it.Now for smaller cooler so I can enjoy it properly ________________________________________ Rallye build: 11 November 1998 - a WednesdayTeam rallye,built for track ----Click this if you like rallyes Rallye dead Secret Team Astor... |
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Posted 15th Jul 2013 at 20:05
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7057sam
Seasoned Pro Location: Stowmarket,Suffolk Registered: 18 Apr 2009 Posts: 2,080 Status: Offline |
Post #21
funkymonk wrote: Hi Sam, can you get a video? Idle was solid and it was fine through the range including sub 3k so suspect it has uncovered a weakness elsewhere or a small boost leak. Well done for getting it in how you finding it?Its truely awesome can't quite believe its a 306, everybody that goes in it is blown away ________________________________________ Rallye build: 11 November 1998 - a WednesdayTeam rallye,built for track ----Click this if you like rallyes Rallye dead Secret Team Astor... |
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Posted 15th Jul 2013 at 20:09
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #22
Sounds like the PAS sensor was knackered then.________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 15th Jul 2013 at 22:53
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