Went down to Power Engineering today..... - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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SteveW

Member

Registered: 15th Jul 02
Location: Up in the clouds
User status: Offline

5th Jul 04 at 22:22

Im booked in for a 3 hour session on the rollers for them to setup the ThunderCorsa....

cos there is something not quite right with it.. the boost kinda comes on, then stops, then comes on again real strong.. it dont happen all the time, just every so oftern.. and i think there is a bad earth somewhere cos at night with the lights on its fuking shocking... the lights dim inside and make some terrible noise, and the boost is even worse then

told them all this and i hope its ok.. not gonna drive it untill then.. i will just keep driving "snowy" untill next week

costing me about £300

but should be running perfect afterwards

Steve...

PaulW

Member

Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline

5th Jul 04 at 22:24

end of the day tho...

£300 on a session to find whats wrong & sort it

or £3k on a rebuild if it all goes pete-tong

Kris TD

Member

Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline

5th Jul 04 at 22:24

mates corsa turbo does this a bit too, it also misfires sometimes.

willay

Moderator
Organiser: South East, National Events
Premium Member

Registered: 10th Nov 02
Location: Roydon, Essex
User status: Offline

5th Jul 04 at 22:24

spank it.

Nismo

Member

Registered: 12th Sep 02
User status: Offline

5th Jul 04 at 22:26

could be electrical , possible boost soliniods?

Or split pipes causing boost flat spots?

SteveW

Member

Registered: 15th Jul 02
Location: Up in the clouds
User status: Offline

5th Jul 04 at 22:27

yeah i know, £300 is better than forking out for new pistons n turbo..

SteveW

Member

Registered: 15th Jul 02
Location: Up in the clouds
User status: Offline

5th Jul 04 at 22:28

Nismo..

i really need to read up about Turbos n stuff.. haven't really looked into it yet..

vibrio

Banned

Registered: 28th Feb 01
Location: POAH
User status: Offline

5th Jul 04 at 22:32

quote:
Originally posted by SteveW
Im booked in for a 3 hour session on the rollers for them to setup the ThunderCorsa....

cos there is something not quite right with it.. the boost kinda comes on, then stops, then comes on again real strong.. it dont happen all the time, just every so oftern.. and i think there is a bad earth somewhere cos at night with the lights on its fuking shocking... the lights dim inside and make some terrible noise, and the boost is even worse then

told them all this and i hope its ok.. not gonna drive it untill then.. i will just keep driving "snowy" untill next week

costing me about £300 but should be running perfect afterwards

Steve...

could be AFM or somthing as simple as a leaky DV.

when you say boost comes in the out is it a quick ossilation or quite a noticable drop in boost. have you checked your plugs?

SteveW

Member

Registered: 15th Jul 02
Location: Up in the clouds
User status: Offline

5th Jul 04 at 22:34

its quite noticable mate.. only really happens in 5th n 6th

haven't checked the plugs.......................YET

was gonna get MegaLeads from Halfords today, but they didn't have them in.. (only cos i want blue bits under the bonnet

)

Richie

Member

Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline

5th Jul 04 at 22:36

seems like a proper earth fault, have you changed the battery Anup was using? The amount of fucking times he took that down to 10 volts

SteveW

Member

Registered: 15th Jul 02
Location: Up in the clouds
User status: Offline

5th Jul 04 at 22:39

he used to have a Yellow Top.. but now its on a Vauxhall standard jobbie

Richie

Member

Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline

5th Jul 04 at 22:41

At Max Live in November he had a shitty Exide up front

Change your battery up front matey and also check your earth straps to most major components.

vibrio

Banned

Registered: 28th Feb 01
Location: POAH
User status: Offline

5th Jul 04 at 22:42

quote:
Originally posted by SteveW
its quite noticable mate.. only really happens in 5th n 6th

haven't checked the plugs.......................YET

was gonna get MegaLeads from Halfords today, but they didn't have them in.. (only cos i want blue bits under the bonnet )

don;t bother about leads. does it only do it at set RPM points? does the boost actually go down a lot or does it just feel like ignition getting retarded. a boost leak would show up in 4th underload for sure.

SteveW

Member

Registered: 15th Jul 02
Location: Up in the clouds
User status: Offline

5th Jul 04 at 22:45

ok mate will ignor leads...

it dont go down.. it more stops..

kinda goes up.. stops for a bit.. then kicks back in... the power engineering guys said it might be going into overboost.. and that the ECU needs to be re-programmed

Nismo

Member

Registered: 12th Sep 02
User status: Offline

5th Jul 04 at 22:46

could be a boost solinoid sticking?

Richie

Member

Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline

5th Jul 04 at 22:46

have you made any engine modifications since the ECU was sorted by Anup? Or was the ECU stock then?

Nismo

Member

Registered: 12th Sep 02
User status: Offline

5th Jul 04 at 22:46

quote:
Originally posted by SteveW
Nismo..

i really need to read up about Turbos n stuff.. haven't really looked into it yet..

plenty of time to

Richie

Member

Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline

5th Jul 04 at 22:47

Make sure they cover these three:

Earths
Solenoid testing
ECU voltage/earth/program

They are priority

SteveW

Member

Registered: 15th Jul 02
Location: Up in the clouds
User status: Offline

5th Jul 04 at 22:53

the only thing i (well mattb) have changed is some of the hoses.. changed to white ones.... thats all

dunno bout ECU n stuff, all i know is that its meant to be running the EDS Phase 2 software stuff... but yeah Richie i will get them to look at the earthing problems

vibrio

Banned

Registered: 28th Feb 01
Location: POAH
User status: Offline

5th Jul 04 at 23:02

seems strange that it is only doing it in 5th and 6th though. would not have thought it was a load based fault as you;d kind of expect it in 4th as well. when they hook up the rolling road they shoudl moniter boost and the spark. they will see whats going on.

check all the connections particularly your AFM. check the hose conecctions as well.

SteveW

Member

Registered: 15th Jul 02
Location: Up in the clouds
User status: Offline

5th Jul 04 at 23:16

AFM ?? whats that ??

air flow meter yeah ? (see im learning)

well they are the bestest guys around my area, and probably the country (or so i have heard)

im sure they will find what is wrong with it.. plus i will get a defo reading of how many ponies the car is running.. cos i doubt its 280 as Anup always said.. more likely 240-250ish

DanielJ

Member

Registered: 21st Nov 01
Location: gwent, south wales
User status: Offline

6th Jul 04 at 00:32

sounds like my car

wouldnt go over 3k revs in 5th yesterday, timing is out on it tho, bloody vw's

Pablo

Member

Registered: 3rd Feb 03
Location: Milton Keynes
User status: Offline

6th Jul 04 at 07:50

Sounds like u need a new car mate

MattyB

Member

Registered: 13th Nov 01
Location: 118.5bhp :D
User status: Offline

6th Jul 04 at 08:01

Better off asking on Mig.

Alot more members who know alot more about LETs.

Matt

Tim

Site Administrator

Registered: 21st Apr 00
User status: Offline

6th Jul 04 at 09:19

Power Engineering rock! Enough said...

They've done sooooo much great work on my bro's T5R

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