Post #26
Stan, where is the lambda sensor connector located?No chance that it could be a bad ICV?
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| Author | Subject: Unplugging the PAS sensor |
 The Coolest
Junior User  Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
No chance that it could be a bad ICV? |
 Posted 14th Dec 2012 at 14:01
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #27
The lambda sensor plug is located down behind the battery box. It is a 4-pin red and black connector.  ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone  |
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Posted 14th Dec 2012 at 14:31
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The Coolest
Junior User Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #28
Thanks. My old 1.4 306 had a dead lambda and the only problem it had when it idled was it started to sort of 'stutter' after a few minutes of it idling and the check engine light would come on. What should I expect with it unplugged with the 6? Also, since the main issue seems to be when it's warm, should I let it warm up with the sensor connected or not? |
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Posted 14th Dec 2012 at 15:12
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beez_neez_gt
Seasoned Pro  Location: @ de limit of adhesion ! Registered: 14 Oct 2008 Posts: 2,916 Status: Offline |
Post #29
Sorry mobile again.The lambda plug should have a red fixing slide, slide it sideways then unplug. Mine just cuts out after a min or two. ________________________________________ Pug fee`ver,Pick a Bogey, buy a Pug. Black 306 GTI 6 Standard, was 60k mileage, bargain!! Clicky: [url =http://www.306gti6.com]click here[/url] remove the space between [url & = |
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Posted 14th Dec 2012 at 15:19
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #30
Just simply unplug the sensor and then start it up and see what happens. If it runs well *almost* as good as normal then that's your problem.The other thing to think about is that the green (ECU temp) sensor on the thermostat might be faulty and affecting the engine when it's warmed up. Try the lambda first and then try checking the resistance on that temp sensor. The values can be found in the FAQ section under "Sensor Testing".  ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 14th Dec 2012 at 15:29
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The Coolest
Junior User Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #31
Thanks again Stan, will do and report back. But when I start it, a cold start, at the moment I turn the ignition it revs up way too high, then stays up around the 1000rpm range, and go down to normal when it warms up. And it's 20C outside, not freezing.Funny thing is as long as I don't turn it off, it idles ok even at 90C. But if I turn it off it won't start back up normally. |
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Posted 14th Dec 2012 at 15:37
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #32
Definitely sounds like a temperature related issue.  For example, if the temp sensor is stuck telling the ECU that the engine is cold, it will run rich. This is fine when it's cold, but as the engine warms up it will start to struggle as it's receiving more fuel than it needs. If you switch it off then try and start it again it could now be trying to start a rich/flooded engine which will be difficult. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 14th Dec 2012 at 15:41
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The Coolest
Junior User Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #33
Ok, that does make sense. I'll check it out. |
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Posted 14th Dec 2012 at 15:45
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The Coolest
Junior User Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #34
So we're talking about this sensor then: Should I really take it out or just unplug the cable and measure resistance with it in and the engine running? |
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Posted 14th Dec 2012 at 16:43
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #35
If it was me, I'd get the engine up to temp, note the temp it's sitting at then switch it off. Unplug the sensor and measure the resistance. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 14th Dec 2012 at 20:59
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The Coolest
Junior User Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #36
Well I just tested the sensor and the values its giving are correct but it still stalls after reaching temperature, same thing even with it disconnected. So its not it  Any other ideas? |
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Posted 15th Dec 2012 at 10:49
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woody.
Senior User  Location: London Registered: 18 May 2009 Posts: 799 Status: Offline |
Post #37
Hmmm... I had similar symptoms and it turned out to be the PAS sensor but as you've already tried that I'm not sure. Have you tried disconnecting it for a couple days?I'm not sure but it might be worthwhile going through most of your sensors with a multimeter and checking them against the sensor FAQ. Try the MAP sensor, throttle position sensor and recheck the lambda perhaps? HTH |
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Posted 15th Dec 2012 at 12:13
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #38
Have you tried the lambda yet?  ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 15th Dec 2012 at 12:50
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The Coolest
Junior User Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #39
To clarify, what I checked was the coolant temp sensor, the bottom green one.Haven't checked the lambda yet, as I had to go out, so I will try to check that tomorrow. Daylight is way too short this time of year, I need to get one of them 12v lamp things so I could work when it's dark. Does anyone have a recommendation for a cheap one that works well? |
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Posted 15th Dec 2012 at 16:34
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The Coolest
Junior User Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #40
Decided to try my luck at changing the ICV first.The ICV I've got in the car is a Magnetti Marelli B13/00, do I need a specific model of the ICV or any model of a Magnetti Marelli ICV that fits should work? Found a local guy with one, it's a Magnetti Marelli B04/01: http://i.imgur.com/VctHk.jpg http://i.imgur.com/Dey2I.jpg Looks like this one is for a 306XSI (XU10J4R), will it also work on the gti6 engine? One more thing, could this problem be caused by a dirty/clogged up throttlebody? |
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Posted 18th Dec 2012 at 12:17
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swiftyboi006
Seasoned Pro  Location: Maidenhead Registered: 12 Apr 2010 Posts: 2,110 Status: Offline |
Post #41
Not sure how the tb can get clogged unless theres a squirrel in there? Why would you not just get an icv for a xu10j4rs engine?________________________________________ cherry p1.....SOLD (regreting this)blaze p2.....why did i buy this SOLD Black p3 |
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Posted 18th Dec 2012 at 18:50
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #42
swiftyboi006 wrote: Why would you not just get an icv for a xu10j4rs engine? It's probably difficult for him to obtain one due to the fact that he resides in Israel. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 18th Dec 2012 at 19:13
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The Coolest
Junior User Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #43
Indeed. There is one on eBay, I'm waiting for a reply from the seller about shipping it here.Locally a brand new one is about $200. |
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Posted 18th Dec 2012 at 19:24
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The Coolest
Junior User Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #44
Well, it's sold now so.... Should I give the one from the XSI a shot? |
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Posted 18th Dec 2012 at 20:53
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beez_neez_gt
Seasoned Pro Location: @ de limit of adhesion ! Registered: 14 Oct 2008 Posts: 2,916 Status: Offline |
Post #45
Plenty of people breaking 306 gti6's here so post a wanted add for a good working ICV. Unless you want a new one.While you wait for one you can check the lambda, drive on a high curb go under and take it out to check it. ________________________________________ Pug fee`ver,Pick a Bogey, buy a Pug. Black 306 GTI 6 Standard, was 60k mileage, bargain!! Clicky: [url =http://www.306gti6.com]click here[/url] remove the space between [url & = |
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Posted 18th Dec 2012 at 23:21
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The Coolest
Junior User Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #46
I got a PM tonight from someone who says he had exactly the same symptoms and it ended up being the MAP. So I want to check it out tomorrow. From the sensor test faq, I need to have the plug connected when the engine's running. Any suggestions on how to wire it up for testing with a multimeter? Or can I remove/move over the plug's cover to get access to the metal contacts?Also as I mentioned, a day before this problem started, I had the car connected to a diagnostic PC and the readings showed that the lambda was giving out good values. |
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Posted 19th Dec 2012 at 01:22
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bas_306gti
Regular  Location: Eindhoven Registered: 06 Sep 2012 Posts: 108 Status: Offline |
Post #47
Sometimes the o-ring behind the ICV leaks air, causing the engine to cut out at idle. |
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Posted 19th Dec 2012 at 18:05
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The Coolest
Junior User Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #48
Somebody suggested a bad VSS sensor, do the symptoms correspond to something that it could cause?And is there a point in trying to unplug it? |
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Posted 20th Dec 2012 at 23:05
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #49
The VSS has been known to make the car run strange when it stops working, however if your speedometer is still working then so is the VSS and therefore there is no problem here. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 21st Dec 2012 at 07:12
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The Coolest
Junior User Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #50
Gotcha, the Speedo is fine.Btw would unplugging the icv also give me an indication whether it's the culprit or not? And the MAP sensor, worth trying to take it out for a clean? |
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Posted 21st Dec 2012 at 08:48
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