AlexJ
Member
Registered: 9th May 06
User status: Offline
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Hiya,
my first post on here but i was just wondering........
Ive been having problems with my 1.2 16v corsa for a while now and i was wondering if anyone could help....
For the past year its been losing power in 1st & 2nd gears, especially when pulling away from traffic lights, feels like you're driving an electric scooter for about a second at around 4000rpm then picks up, doesnt do it all the time but every now and again.
Took it to vauxhall to have diagnosed but they said the diagnostics showed nothing wrong with it, he cleaned the afm, throttle body and fitted new spark plugs, kind of fixed the problem for about 2 days then it was back.
Anyway ive just left it but today the ecu light has come on on the dash and the car has become very juddery in all gears apart from 5th. The light will come on for about 2mins then go off, then come back on again after a while.
Was just wondering if anyone thinks this could be the AFM cos ive read a few topics on here about it, dont really want to pay vauxhall £40 though for them to tell me the same thing or that its the o2 sensor if it might not be....
Can anyone help, or give me a bit of advise about what to do, wld be very grateful anyway....
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AlexJ
Member
Registered: 9th May 06
User status: Offline
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oh n sorry if ive posted this in the wrong section, meant to post it under help
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MR2Mike
Member
Registered: 20th Jan 05
Location: Old Trafford. Drives: MR2 N/A
User status: Offline
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if it starts cutting out all the time mate it could be EGR valve... happened to me recently the bastard lol. (do paper clip test) code for it is 4 7 4 7 4 7 etc
if not.... on my last corsa (1.4 16v) it started losing serious power - by that i mean slower than a 1.0 litre !! eventually took it to the garage.... needed cambelt, water pump, pulleys, tensioners etc 
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AlexJ
Member
Registered: 9th May 06
User status: Offline
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tried that but its a 2000 model, paperclip didnt work 
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MR2Mike
Member
Registered: 20th Jan 05
Location: Old Trafford. Drives: MR2 N/A
User status: Offline
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oh right mate thought you meant older model, sorry
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Ojc
Member
Registered: 14th Nov 00
Location: Reading: Drives : Clio 197
User status: Offline
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Its the Idle Air Control Valve, this engine is notorious for it.
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timmy101
Member
Registered: 3rd Feb 05
Location: halesowen
User status: Offline
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mine does exactly the same. the garage i took it to told me it was the o2 sensor, so i fitted a new one and that didnt make it better. they then thought it could be the coil pack and plugs so i changed them . mine is still sick
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AlexJ
Member
Registered: 9th May 06
User status: Offline
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quote:
Originally posted by Ojc
Its the Idle Air Control Valve, this engine is notorious for it.
cheers 4 that, took it out n cleaned it, car seems to run a hell of a lot better nw.
Apart frm one thing, ecu light is permenantly on now
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X 60RSA
Member
Registered: 20th Aug 01
Location: Lincoln
User status: Offline
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quote:
Originally posted by AlexJ
quote:
Originally posted by Ojc
Its the Idle Air Control Valve, this engine is notorious for it.
cheers 4 that, took it out n cleaned it, car seems to run a hell of a lot better nw.
Apart frm one thing, ecu light is permenantly on now
Disconnect your battery for 1 hour, then reconnect, the ECU should be clear.
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AlexJ
Member
Registered: 9th May 06
User status: Offline
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quote:
Originally posted by X 60RSA
quote:
Originally posted by AlexJ
quote:
Originally posted by Ojc
Its the Idle Air Control Valve, this engine is notorious for it.
cheers 4 that, took it out n cleaned it, car seems to run a hell of a lot better nw.
Apart frm one thing, ecu light is permenantly on now
Disconnect your battery for 1 hour, then reconnect, the ECU should be clear.
did that, light never came on when i started the car, till i took it for a 10 min drive, light came on again, wont go off now, car seems to drive fine though 
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X 60RSA
Member
Registered: 20th Aug 01
Location: Lincoln
User status: Offline
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Do you have any mates who work in a garage that have access to a fault code reader and are able to look at/clear the faults?
These engines are riddled with kids toys! Like the air flow meter, idle stepper motor, both mine went within 4 weeks of each other.
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AlexJ
Member
Registered: 9th May 06
User status: Offline
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no, i dont, n vauxhall want £40 just to put it on diagnostics
n when i said it drives fine now, that aint really true, just noticed that it really struggles sometimes when starting, like the idle control has been setup by the ecu too low
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Rob B
Member
Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline
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mine did this, diog said o2 sensor, fitted no difference, sprayed some carb cleaner up the inlet pipe and it solved it.
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X 60RSA
Member
Registered: 20th Aug 01
Location: Lincoln
User status: Offline
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For 40notes you can get a brand new idle/stepper motor jobby as eventually it will probably pack up as they are prone to.
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AlexJ1
Member
Registered: 10th Aug 04
User status: Offline
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just to say thanx to people for there suggestions, bought a new idle air control valve £40 and afm £50 off ebay.
Put the idle air control valve in first n it completely sorted the problem so maybe i didnt really need the afm, changed it anyway tho 
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X 60RSA
Member
Registered: 20th Aug 01
Location: Lincoln
User status: Offline
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Well you've less chance of having a problem for a while fingers X as the air flow meters usually pack up on these engines, i changed both within 4 weeks of each other as they were fewked!
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