Strange Engine Problems! - Engines Forum - Peugeot 306 GTi-6 & Rallye Owners Club

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Subject: Strange Engine Problems!

tobs

Junior User

Location: Falmouth

Registered: 26 Oct 2008

Posts: 98

Status: Offline

Post #1

Right have a number of issues with my car at the minuite and was wondering if you guys could offer an explanation!

- Really rough idle just after starting
- After driving for a while when in neutral or with foot on the clutch the engine repeatedly revs fromm 1k to 1900 revs and drops and repeats.
- Engine carries on going after foot is taken off the throttle and then drops off very harshly after a couple seconds.
- Strangely after starting the speedo and rev counter flip around to max then back again.

Thinking it could be a problem with a sensor or a nubmer of sensors. Possibly idle control?

Any idea guys? Help is very much needed and appreciated!

________________________________________

Gti6 - Diablo Red - Scorpion Back Box - Cobra Alarm - 167bhp

Posted 13th Dec 2009 at 17:10

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SteviePut

Seasoned Pro

Location: Down south

Registered: 20 Oct 2005

Posts: 13,637

Status: Offline

Post #2

The idling problem sounds like the stepper motor playing up. Mine did exactly the same and a new stepper sorted it but giving it a clean may help Smile

The speedo issue could be a your battery being on it's last legs.

Hope this helps

________________________________________

My old man wrote me a letter from prison once. It said if you don't want to end up in here, stay away from crime, women and drugs. Trouble is, that don't leave you much else to do, does it?

Posted 13th Dec 2009 at 17:21

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china_306 Banned!

Location: Stoke

Registered: 25 Nov 2009

Posts: 129

Status: Offline

Post #3

i have ½ an answer to one of your problems Razz

, the speedo has somthing to do with the earthing points, myn does the same, however i dont know which earthing points they are! and as for your engine problems, seems the the ICV...

Posted 13th Dec 2009 at 17:23

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mad_dave23

Senior User

Location: Farmer land

Registered: 27 May 2006

Posts: 819

Status: Offline

Post #4

Mine used to do the 2nd and 3rd points above, so I changed the lambda and map sensor, problem solved!

Posted 14th Dec 2009 at 01:36

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sentrix

Newbie

Location: Lowestoft

Registered: 19 Sep 2009

Posts: 23

Status: Offline

Post #5

I had this same problem.I disconected the sensors on and around the throtle body cleaned them reconected and its been fine ever since.

________________________________________

Freeman

Posted 14th Dec 2009 at 02:32

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toby

Seasoned Pro

Location: Bourne

Registered: 13 Dec 2007

Posts: 1,400

Status: Offline

Post #6

A lot of the issues could be down to a bad earth, make sure your connection to the battery is tight and that the leads going from it to the gearbox and chassis are good, if you connect a jump lead from the battery to the engine does it improve things?
Make sure the positive from the battery to the fuse box is good and also from the battery via the starter to the alternator. If the ECU isn't getting enough voltage it will cause all sorts of problems.

________________________________________

Previous Peugeot - 2000(w)GTI-6, Me old China, Supercharged with working aircon!

Posted 15th Dec 2009 at 00:07

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jaydog81

Regular

Location: york

Registered: 12 Dec 2007

Posts: 351

Status: Offline

Post #7

tobs wrote:

Right have a number of issues with my car at the minuite and was wondering if you guys could offer an explanation!

- Really rough idle just after starting
- After driving for a while when in neutral or with foot on the clutch the engine repeatedly revs fromm 1k to 1900 revs and drops and repeats.
- Engine carries on going after foot is taken off the throttle and then drops off very harshly
after a couple seconds.
- Strangely after starting the speedo and rev counter flip around to max then back again.

Thinking it could be a problem with a sensor or a nubmer of sensors. Possibly idle control?

Any idea guys? Help is very much needed and appreciated!

no 4: Its telling you to give it some nuts. LOL

Mine did this once and has never returned!

________________________________________

*jay81.
Phase 2.5/S-99
Team i live for working,Paying bills and funding my hobbies. I wish my life could be just living for a pink "I love the 6 sticker". Laugh my ass off

Posted 15th Dec 2009 at 00:33

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tobs

Junior User

Location: Falmouth

Registered: 26 Oct 2008

Posts: 98

Status: Offline

Post #8

Where's the best place to get my hands on an ICV?

________________________________________

Gti6 - Diablo Red - Scorpion Back Box - Cobra Alarm - 167bhp

Posted 16th Dec 2009 at 19:11

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tobs

Junior User

Location: Falmouth

Registered: 26 Oct 2008

Posts: 98

Status: Offline

Post #9

had a clean of the icv today and cleaned the electrical contacts (both of which didnt make a blind bit of difference) while there i came across a random plug, doesnt seem to plug into anything but runs in the same loom as the map sensor.

Can anyone shed any light on this?

http://www.youtube.com/watch?v=Hsg8AHdlKUY

________________________________________

Gti6 - Diablo Red - Scorpion Back Box - Cobra Alarm - 167bhp

Posted 21st Dec 2009 at 02:41

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tobs

Junior User

Location: Falmouth

Registered: 26 Oct 2008

Posts: 98

Status: Offline

Post #10

________________________________________

Gti6 - Diablo Red - Scorpion Back Box - Cobra Alarm - 167bhp

Posted 21st Dec 2009 at 02:41

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rudolf

Seasoned Pro

Location: Skelmersdale

Registered: 07 Apr 2004

Posts: 2,769

Status: Offline

Post #11

It's a standard loom for many models so there are plugs not used.

________________________________________

S Reg Diablo standardsSpec SORNED
R Reg Nile standard spec written off then repaired
X Reg Astor in need of TLC
R Reg Nile to restore
Set of Lions to fit.

Posted 21st Dec 2009 at 02:49

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cress87

Seasoned Pro

Location: Norwich

Registered: 30 Mar 2007

Posts: 11,360

Status: Offline

Post #12

Yup, don't worry about that plug.

________________________________________

~~Ph3 China blue GTi~~-6 ~~330Ci~~~~///M Sport~~ & NC23 CBR400RR Cool

You feed beefburgers to swans. Yes

I may have been speeding Mr Policeman but [a] I live for the 306 and [b] did you see that dog? omfg

Posted 21st Dec 2009 at 02:52

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rufio306

Regular

Location: ireland

Registered: 12 Mar 2008

Posts: 136

Status: Offline

Post #13

my car done number 4 on your list this morning, i had left the ignition switched on for ages while i was polishing it. when i got in and turned it off and back on all the dials went the whole way round and back again, thought nothing of it but now i think it might be something fishy

________________________________________

Posted 21st Dec 2009 at 03:02

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stegti6luvr

Seasoned Pro

Location: St Helens

Registered: 26 Nov 2006

Posts: 1,907

Status: Offline

Post #14

Really sounds like an issue with the ICV, Check it is properly plugged in and spray some wd40 into the contacts... It may be worth getting another from a breakers to rule it out Wink

Posted 21st Dec 2009 at 03:03

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