My Corsa Turbo EM light coming on - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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mark106mark

Member

Registered: 30th Sep 06
Location: West Midlands
User status: Offline

11th Dec 06 at 09:36

I have corsa Turbo (c20let) The software is standard and its running about 240 bhp. When I'm excelerate hard through 4th/5th the EM light comes on.
Its not over boosting as its only running 10psi. Any other ideas?

thanks Mark

VegasPhil

Premium Member

Registered: 16th Jan 05
Location: Fareham, Hants Drives: Octavia VRS
User status: Offline

11th Dec 06 at 09:45

Swear I heard someone talking about the Lambda getting upset on the big engine cars.

Have you done a paper clip test on the car?

Corsa 2.0 16v Vegas - Sold

mark106mark

Member

Registered: 30th Sep 06
Location: West Midlands
User status: Offline

11th Dec 06 at 12:47

Whats the paperclip test?

deanmcreynolds26

Member

Registered: 15th Sep 03
Location: E46 //M3
User status: Offline

11th Dec 06 at 12:54

search google for vauxhall paperclip test! it will show u what to do and u will find out what is causing the EM light to come on..

could be anything though, lambda, AFM, boost leak to the ECU vaccum or anything... sure the site is topbuzz something!

Teddy

Member

Registered: 19th Jul 04
Location: Northampton Drives: VW Bora 1.9TDi pd130
User status: Offline

11th Dec 06 at 15:17

It should overboost.

If its holding 10 on standard management then it will bring up "boost out of range" as its only supposed to overboost to 10 and hold around 8.

The paper clip test reads the faults from the ecu.

As mentioned Top Buzz is good for this.

mark106mark

Member

Registered: 30th Sep 06
Location: West Midlands
User status: Offline

11th Dec 06 at 16:13

I thought the overboost could run 12psi then drop to about 8-9. I have the amal valve bypassed and using a lockable boost controller under the bonnet. I might try lowering the boost a bit more then untill I can change the software.

J100RSA

Member

Registered: 4th Mar 01
Location: Thornhill, West Yorkshire
User status: Offline

11th Dec 06 at 23:17

c20let dont like mbc as i found out

[Edited on 11-12-2006 by J100RSA]

chapcorsa

Member

Registered: 13th Nov 05
Location: Greater Manchester
User status: Offline

11th Dec 06 at 23:44

if c20lets dont like mbc what are u ment 2 use then?!

mark106mark

Member

Registered: 30th Sep 06
Location: West Midlands
User status: Offline

11th Dec 06 at 23:47

lol....my cousins one has been on mbc for 2 yrs and its fine

Simon_16v

Member

Registered: 14th Aug 06
Location: Yorkshire
User status: Offline

11th Dec 06 at 23:55

what an mbc?

J100RSA

Member

Registered: 4th Mar 01
Location: Thornhill, West Yorkshire
User status: Offline

12th Dec 06 at 00:05

mbc is a manual boost controler

ive got omex ecu with full boost control anti lag launch control and traction control a few of my mates are running apexi controlers

J100RSA

Member

Registered: 4th Mar 01
Location: Thornhill, West Yorkshire
User status: Offline

12th Dec 06 at 00:06

oh and ur eml will be an over boost fault

Nic Barnes

Member

Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline

12th Dec 06 at 16:11

please remove the mbc from the c20let and step away from the vehicle

mark106mark

Member

Registered: 30th Sep 06
Location: West Midlands
User status: Offline

12th Dec 06 at 16:13

so should I remove the mbc and plug the aml valve back in and see if theres still a problem?

mark106mark

Member

Registered: 30th Sep 06
Location: West Midlands
User status: Offline

12th Dec 06 at 16:14

quote:
Originally posted by SRi_Si
what an mbc?

manual boost control

carnoisseurcraig

Member

Registered: 4th Jun 03
Location: Inverness
User status: Offline

12th Dec 06 at 19:55

phase 2 all the way mate. Good compliment of power and general round the town banter. 260 bhp with a decent front mount cooler, free flowing exhaust and raised fuel pressure.

Nic Barnes

Member

Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline

13th Dec 06 at 09:40

can fit an mbc, but if its still on std ecu theres not much point as it will keep bringing boost out of range fault codes etc.

also, you cant just turn boost up, you need to turn fuel up aswell

mark106mark

Member

Registered: 30th Sep 06
Location: West Midlands
User status: Offline

13th Dec 06 at 14:04

ok cheers ill try and plug back up the aml valve then an see how that goes. I dont ant to go phase 2 until early next year anyways. The boost is at 0.7 bar and it hold it spot on all th way through thats why im confused how it thinks its overboosting?

Nic Barnes

Member

Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline

13th Dec 06 at 14:34

you need to do the paperclip test and see what it comes up with first and go from there as it may not be overboost, i think we are basing assumptions on the mbc really.

mark106mark

Member

Registered: 30th Sep 06
Location: West Midlands
User status: Offline

14th Dec 06 at 02:22

ok thanks

Ben D

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Registered: 25th Apr 05
Location: South West
User status: Offline

14th Dec 06 at 18:08

Seeing as nobody has uctually posted the full url: http://www.topbuzz.co.uk/

Good luck fixing it