My car's 'pinking' - how do I make it stop, timing? ** update ** - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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lewie

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Registered: 21st Feb 05
Location: Home: Orkney Uni: Edinburgh
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19th May 05 at 11:33

As above, the motor is pinking.

What could be the cause, is timing the only one?

Cheers

[Edited on 29-05-2005 by lewie]

[Edited on 03-06-2005 by lewie]

Dave A

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Registered: 10th Dec 03
Location: County Durham
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19th May 05 at 11:35

how do you know its pinking? its rare for this to happen as the knock sensor would pick it up and the ecu will adjust timing accordingly until the pinking stops. what are the symptoms?

lewie

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Registered: 21st Feb 05
Location: Home: Orkney Uni: Edinburgh
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19th May 05 at 11:37

have been searching around the forum and previous posts have suggested it is.

when the engine's struggling, it makes a rattley noise like a 'bag of nails'. especially up hills...

Dave A

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Registered: 10th Dec 03
Location: County Durham
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19th May 05 at 11:41

do you get hesitation or a missfire?

oh, and any induction kit fitted?

[Edited on 19-05-2005 by corsa808]

lewie

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Registered: 21st Feb 05
Location: Home: Orkney Uni: Edinburgh
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19th May 05 at 11:43

yeah sometimes it feels like it's not firing on all cylinders (if that's the right way to put it)

no mods, completely standard.

just had new timing chain, tensioner etc fitted (it pinked before that though)

Dave A

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Registered: 10th Dec 03
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19th May 05 at 11:45

ill look in the haynes manual about the knock system on your car in a min.

lewie

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Registered: 21st Feb 05
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19th May 05 at 11:59

cheers

Dave A

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19th May 05 at 12:06

just had a check, the 1.0 12v comes with a knock sensor system that compromises of a senso in the back of the block and a pre-set value in the ecu. if the sensor detects a knock (pre igniting) it will adjust the timing of the spark/ injector in that cylinder accordingly. if there is a problem wit the engine pinking and no engine management light on, its likely to be a problem with the fuel/ air system. either a faultu or leaking throttle body/ vaccum hose, faulty distributor, exessive carbon build up, or an injection system fault ( not as likely as this would probably show a fault code, unless its a physical blockage).

what petrol u using?

lewie

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Registered: 21st Feb 05
Location: Home: Orkney Uni: Edinburgh
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19th May 05 at 12:25

quote:

what petrol u using?

erm orkney petrol, unleaded is all we get told.

car does cut out at a certain point before the pedal gets to the floor, could this be related?

Dave A

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19th May 05 at 12:29

what do you mean by 'cut out' and i guess u mean the throttle.

lewie

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Registered: 21st Feb 05
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19th May 05 at 12:33

yes throttle, say the pedal is about 3/4 of the way down the engine cuts out, as in here

Dave A

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19th May 05 at 12:41

the air mass meter could be causing problems, my girlfriends car does the same thing when you put you foot to the floor (1.2 16v) but not sure about the pinking, as the ecu takes a reading from the air mass meter, and will adjust timing using signals from the knock sensor.

i take it youre not getting any management light on?

whats the fuel consumtion like?

lewie

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Registered: 21st Feb 05
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19th May 05 at 12:53

no management light.

not sure about fuel, too many factors for a forum you think? might take it to garage and see what they say.

Dave A

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19th May 05 at 12:57

to be honest, a garage wont be able to test it properly, id go to a rolling road as they can test all the sensors when the car is under load and with the car plugged in to test equptment.

your local little garage wont be able to do much apart from open the bonnet and guess.

one other thing to check is the leads. did they get changed with the service?

lewie

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Registered: 21st Feb 05
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19th May 05 at 15:02

quote:
Originally posted by corsa808
to be honest, a garage wont be able to test it properly, id go to a rolling road as they can test all the sensors when the car is under load and with the car plugged in to test equptment.

your local little garage wont be able to do much apart from open the bonnet and guess.

one other thing to check is the leads. did they get changed with the service?

ok would have to go south for a rolling road though.

not sure if he did or not, didn't write it on the invoice. might be a stupid question be can you get 'performance' leads?

Dave A

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19th May 05 at 16:23

dont bother. gm ones are more than good enough.

Voyto

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19th May 05 at 21:18

yesh, i had this on my 1.2 16V and it turned out to be air mass meter

lewie

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19th May 05 at 23:06

quote:
Originally posted by Voyto
yesh, i had this on my 1.2 16V and it turned out to be air mass meter

that an electronic fault?
fix it myself?

Dave A

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20th May 05 at 07:58

not really much to repair on them.

Tom_1.216v

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20th May 05 at 10:12

Voyto

posted on 19-05-2005 at 09:18 PM
yesh, i had this on my 1.2 16V and it turned out to be air mass meter

i had this aswell i thought the top or bottom end had gone and car was fcuked or somin. it was just the air flow meter. it was really weird that a meter can cause the noise.

lewie

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Registered: 21st Feb 05
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20th May 05 at 15:22

so what can i do to stop it?

langey

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Registered: 7th Sep 03
Location: Wigan
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20th May 05 at 18:14

get a new airflow meter

lewie

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Registered: 21st Feb 05
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22nd May 05 at 11:32