car revving itself!! UPDATE All finished with pic!!! - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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mattievRS

Member

Registered: 20th May 06
Location: Leicester
User status: Offline

21st Nov 06 at 16:43

Ive just fitted an aftermarket inlet manifold and all vacuum hoses are now in place and throttle sealed with gasket and torqued up.The wires on the throttle switch and icv have been extended due to not reaching.

Now when i start my car it revs upto 4k then drops down to 2k then back upto 4k then 2k and so on.

Any ideas please?

UPDATE

The throttle is staying closed when it revs itself so could it be the icv.But would this cause it to rev up and down?

[Edited on 21-11-2006 by m17tty]

[Edited on 21-11-2006 by m17tty]

I have now disconnected the icv and tps and the car is still doing the same as it was!!!Help me its now getting on my tits!!

[Edited on 21-11-2006 by m17tty]

[Edited on 22-11-2006 by m17tty]

Dean_W

Member

Registered: 13th Dec 05
Location: Downham Market, Norfolk
User status: Offline

21st Nov 06 at 16:55

Seems like an air leak.

Maybe the MAP sensor.

mattievRS

Member

Registered: 20th May 06
Location: Leicester
User status: Offline

21st Nov 06 at 16:57

quote:
Originally posted by Dean_W
Seems like an air leak.

Maybe the MAP sensor.

Ive checked the vacuum hoses by spraying them with wd40 to see if theyre leaking and they all seem fine.

j7 gkk

Member

Registered: 16th Jun 05
Location: Sheffield
User status: Offline

21st Nov 06 at 16:58

i had this matey, turned out to be the throttle position sensor, it kept comming out due to the clip been broken, worth looking at

mattievRS

Member

Registered: 20th May 06
Location: Leicester
User status: Offline

21st Nov 06 at 17:01

quote:
Originally posted by j7 gkk
i had this matey, turned out to be the throttle position sensor, it kept comming out due to the clip been broken, worth looking at

Im gonna go back to it 2morrow and check the wiring etc.Do you think it could be the icv or the tps?I know they are both plugged in and clipped in place as i was very careful when plugging them in.

mattievRS

Member

Registered: 20th May 06
Location: Leicester
User status: Offline

21st Nov 06 at 17:12

ttt

mattievRS

Member

Registered: 20th May 06
Location: Leicester
User status: Offline

21st Nov 06 at 17:31

bttt

willhouse

Member

Registered: 11th Jul 06
Location: Sheffield
User status: Offline

21st Nov 06 at 17:36

take the sensors out and give them a good clean and put them back in. make sure that your wires are connected to the right wires where you have extended them.

mattievRS

Member

Registered: 20th May 06
Location: Leicester
User status: Offline

21st Nov 06 at 18:04

Can i take it that the sensors are ok if it does the same whether they are connected or not??

mattievRS

Member

Registered: 20th May 06
Location: Leicester
User status: Offline

21st Nov 06 at 18:47

bttt

Fro

Member

Registered: 20th Jun 06
Location: Rainham, Essex Drives: A3 2.0TDi Sport
User status: Offline

21st Nov 06 at 18:51

I had this on mine when a garage took my inlet off to change a water hose that runs behind the engine. Turned out to be a vacuum hose that he pulled off had split at one end.

Member

Registered: 18th Sep 03
Location: Hampshire Drives: ITR DC2 + Skoda Felicia
User status: Offline

21st Nov 06 at 20:07

here u go mate i had this problem last year. think the vid still works lol

http://www.corsasport.co.uk/board/viewthread.php?tid=254448

mattievRS

Member

Registered: 20th May 06
Location: Leicester
User status: Offline

21st Nov 06 at 21:04

Right,the icv and tps are disconnected and cars still revving itself.Can i discount these 2 sensors as the cause??I dont think it will be the throttle as the butterfly stays closed all the time its revving as ive disconnected this too.ive checked for leaks and cant hear or see anything that sounds or looks like a leak on any vacuum hoses or inlet mating face or the throttle to inletAnyone got any other suggestions cause im thinking of torching the fucking car!!

Dave A

USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
User status: Offline

21st Nov 06 at 21:12

either an airleak around the inlet or a vaccum hose. if its a vaccum hose its likely to be the MAP sensor. plug everything back in, lissen for hissing noises around the inlet. if nothing, try unplugging the map sensor while its running see if anything changes...... let us know

mattievRS

Member

Registered: 20th May 06
Location: Leicester
User status: Offline

22nd Nov 06 at 13:19

Just a quick reply.My inlet is now done and id like to thank Dave A for the advice he gave me.Spot on mate,it was a n air leak around the bottom of the inlet.Cheers mate.

Oh and ive included a pic of the finished engine!!!

http://i139.photobucket.com/albums/q306/m17tty/DSC00033.jpg

Dean_W

Member

Registered: 13th Dec 05
Location: Downham Market, Norfolk
User status: Offline

22nd Nov 06 at 13:30

I said that at the top

mattievRS

Member

Registered: 20th May 06
Location: Leicester
User status: Offline

22nd Nov 06 at 13:33

quote:
Originally posted by Dean_W
Seems like an air leak.

Maybe the MAP sensor.

Yeah

Scotty C

Member

Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
User status: Offline

22nd Nov 06 at 13:34

pleased with it?

Dean_W

Member

Registered: 13th Dec 05
Location: Downham Market, Norfolk
User status: Offline

22nd Nov 06 at 13:36

quote:
Originally posted by Monster
pleased with it?

I want to know this also. What do you reckon?

mattievRS

Member

Registered: 20th May 06
Location: Leicester
User status: Offline

22nd Nov 06 at 13:39

To be absolutely honest yes i am.The car seems to pull like a train between 2800 all the way to the limiter and it beat a fiesta 1.6 zetec sport about an hour ago over about a mile!!The instructions you get are shit thought so i took photos and may do a write up to post on here.

[Edited on 22-11-2006 by m17tty]

Dean_W

Member

Registered: 13th Dec 05
Location: Downham Market, Norfolk
User status: Offline

22nd Nov 06 at 13:41

Which inlet is it?

Mine comes on at 4.5K, that's a Mantzel.

mattievRS

Member

Registered: 20th May 06
Location: Leicester
User status: Offline

22nd Nov 06 at 13:44

Got it of ebay mate its a copy of a mantzel but it looks a very good copy and had a mate who fabricates inlets for air con company bench test the flow and he said it flows better than the mantzel he has on his 1.6 sport.

Scotty C

Member

Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
User status: Offline

22nd Nov 06 at 13:49

Same inlet as mine? pics in garage...

Dave A

USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
User status: Offline

22nd Nov 06 at 13:49

I was right again

get a pic up of the inlet mate.

mattievRS

Member

Registered: 20th May 06
Location: Leicester
User status: Offline

22nd Nov 06 at 13:51