Evening all.

I need some help with an issue I've got with the 6..

I'm so annoyed with it at the moment.

So basically, since doing my oil change three weeks ago, I've had symptoms of a slightly iffy ICV. Only very slight, so i was thinking it may be just that I didn't put the ptfe gasket on straight and it might've been letting a bit of air in.

Anyway, on Wednesday morning the car started stalling when dipping the clutch from any rpms. Stalled like 6times on the way to work which was, needless to say, a collossal pain in the arse. Anyway, after the car sitting idling for a bit in the work carpark and me checking and wiggling the plugs on the throttle body, it seemed totally fine.

Thursday morning it started doing the hunting idle with even the slightest blip on the throttle by the time I got to work. Again, f*cking annoying.

This morning it seemed a bit better, besides a slight wandering idle. It didn't feel completely up to par though, and on the way home it also felt a bit odd. It just seemed to have a LOT of engine braking. There's a hill I normally have to brake down even in 4th, but today it was holding constant speed in 6th on just the engine.... It also seems as a result I'm having to put my foot down a bit more before the engine starts accelerating the car. It just seems in gear there's a larger 'dead spot' than usual. And it's more jerky at light throttle. Before you ask, I've DEFINITELY got the TPS plugged in, and in neutral it revs up fine with no hesitation etc. The issue only seems to be in gear?!

I got home and took the ICV off, took the screws out of it, sprayed a load of brake cleaner in it and all the airways in it, and then reassembled. Also took all the plugs off the tb and put them back on. It certainly idles a little better, and I'll have a good drive of it tomorrow and report back, but imo it's still not right imo...

Anyone have any ideas at all what it could be??

I'm thinking possibly one of the following;

1. Me adjusting to having the cyclones back on with different tyres etc. (I had 17" Speedline Turinis on it before)
2. Me with very thin soled shoes on today meaning my foot was angled further than normal
3. A gammy sensor
4. an exhaust leak (the midbox did hit the remains of a deer in the road pretty hard on Thursday evening on the way back from work??) That and the flames coming out of it a couple of weekends ago couldnt have done it much good...

Any and all help much appreciated, it's really getting me down this.

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'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

Hmm I've got a spare, ill get it on the diagnostics today and chuck it on if that's the issue.

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'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

I'm still saying lambda.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone

been watching too many F1 interviews

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

Bring on the Trumpets.

As strange as it seems, it is a good possibility as these are classic lambda symptoms.

And you say the diag check did show up that the lambda wasn't in the best of working order.
Try unplugging it and go for a drive. See if there is a noticable difference.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone

If you split the mid box check the cat hex core is in one piece.

He has already done this:

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone

Right, Plugged it into Pug Planet. No faults logged on the ecu, but the lambda readings at idle wre all over the place, fluctuating between about 28mV & 650mV. As I understand it 500-600mV is about right for idle, and therefore hte 28mV indicates it's running lean?

Basically, I'm pretty concerned at this, and want to get it looked at asap to prevent any damage to the engine.

The issue I have is I'm not going to be able to get parts until the weekend, and realistically I wont get it looked at until early part of next week I don't think...

So my question to you guys; I do about 34miles a day, I've got a 4 day weekend booked off this weekend, so will just drive the missus' car, and will get the car booked to change the lambda on Tuesday next week. Do you think the couple of hundred miles I'll be doing just nursing it to and from work will do any damage? I've obviosly been driving it for a week and a bit since the issues started too, probably done 400miles or so of mixed driving total up to now?

Would it be better to disconnect the lamda all together? IIRC it defaults to a given map which runs a bit rich to prevent any leaning out; can anyone confirm this, and would it therefore be better to potter about with it like this in the short term?

Any help/advice much appreciated!

Cheers all

________________________________________

'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

It will be fine until you can get it replaced.

You can unplug it and the ECU will revert to a base map stored within the ECU settings from the factory.
This will indeed as you say, make it run slightly richer.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone

No problem.
Do try unplugging the lambda though and driving it, if you notice a difference in the car and it drives much better then at least you have confirmed the fault.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone

No worries, keep us posted on what you find.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone

Down behind the battery box, floating about. It's a black 4-pin plug with a sliding red locking bar on it. You need to pull this bar out of the side of the plug and the plug will come apart.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone

Glad the lambda has sorted out most of the issues.

The ICV doesn't meter air on the over-run, only when the engine is in an idle state.

If you have slight issues near the top end of the rev range it's probably the MAP playing up, although as you say it could well be in your imagination.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone