displaying posts 1 to 5 of 5

Author Subject: Lumpy low engine speed
jammapic

Senior User

Location: Manchester

Registered: 11 Jun 2010

Posts: 778

Status: Offline

Post #1
Hi guys,

After a couple of months of faultless motoring, Peppin seems to be developing a bit of a fault.

Idle is solid right where it should be, and if you give it the beans it seems to move about right, but pulling off etc seems really lumpy.

I.e. it feels like you are towing something until about 2000rpm part throttle and then it all goes nice and smooth and drives great.

Also, when engine braking, seems to slow down gradually, and then all of a sudden, again at about 2000rpm, it feels like you've hit the brake pedal.

From what I can gather, (and I'm new to petrols!) it could be either the coolant temp sensor (green plug) or the throttle position sensor.

Anyone had this problem?

JP

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HDI Engine Tuning / Remapping Services - https://www.facebook.com/dervtech

306 GTi-6 Track Car - 200+ hp all N/A!
306 DTurbo Track beasty - 209.9hp - RIP
Posted 29th Dec 2012 at 15:32
Chris28190

Senior User

Location: .

Registered: 15 Apr 2012

Posts: 736

Status: Offline

Post #2
Clean some of the sensors? Icv?

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Cherry Rallye '99 - Sold
Posted 29th Dec 2012 at 15:35
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

Status: Offline

Post #3
lambda caused problems like this on a car I fixed the HG on, old unit had been steam cleaned to death by the failing engine!

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Bring on the Trumpets.

Posted 29th Dec 2012 at 15:42
stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline

Post #4
I agree with Mei, sounds like a lambda on it's way out. Yes

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"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 29th Dec 2012 at 15:53
jammapic

Senior User

Location: Manchester

Registered: 11 Jun 2010

Posts: 778

Status: Offline

Post #5
Could well be, yes.

It was fine until I had to rag the lambda out when I fitted the decat....

________________________________________

HDI Engine Tuning / Remapping Services - https://www.facebook.com/dervtech

306 GTi-6 Track Car - 200+ hp all N/A!
306 DTurbo Track beasty - 209.9hp - RIP
Posted 29th Dec 2012 at 16:05

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