corsa c management light on and down on power
09-04-2008, 08:31 PM
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corsa c management light on and down on power
my girlfriend started her car after work today and the car was very lumpy and there was a light on the dash. its a 1.2 16v sxi 2001.
i drove to her place and gave her my car and i took hers.
i looked in the book and this light means its seeing a problem with the exhaust emissions.
it stays on when you start the car and after a few seconds starts flashing. it flashes 16 times and then stays on solid.
it drives but is very slow and lumpy espicially on idle.
im going to give it a service tomorrow but cant see that new plugs will sort it.
could it be the the unit that bolts onto the head over the plugs that im guessing has an inbuilt coil pack idea?
i drove to her place and gave her my car and i took hers.
i looked in the book and this light means its seeing a problem with the exhaust emissions.
it stays on when you start the car and after a few seconds starts flashing. it flashes 16 times and then stays on solid.
it drives but is very slow and lumpy espicially on idle.
im going to give it a service tomorrow but cant see that new plugs will sort it.
could it be the the unit that bolts onto the head over the plugs that im guessing has an inbuilt coil pack idea?
09-04-2008, 08:35 PM
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would that cause it to run lumpy and be down on power though?
only ask as i have an mg and the light is on on that because ive had parts of the exhaust removed and the lamba must be seeing dodgy reading but it drives spot on.
only ask as i have an mg and the light is on on that because ive had parts of the exhaust removed and the lamba must be seeing dodgy reading but it drives spot on.
09-04-2008, 08:49 PM
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air flow meter most engine lights say 'exhaust emissions' in the handbook but can actually be any of the sensors etc. very much doubt lambda unless its the heated side of it but it wouldnt make it run rough possible egr aswel
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09-04-2008, 08:50 PM
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well i dont have the light or the tools at the moment to remove the lamba from the manifold, but i unplugged it from the loom and it didnt change anything.
09-04-2008, 09:13 PM
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ok mate, cheers for the advice.
i know someone who can read the fault codes for me at the weekend just means im gonna have to lend my car to my g/f lol
i know someone who can read the fault codes for me at the weekend just means im gonna have to lend my car to my g/f lol
09-04-2008, 09:13 PM
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maf sensor is well common on these,have done a few where disconected they run better and point to the fault,if its that and you change it get an oe one because most aftermarket ones are crap.
09-04-2008, 09:25 PM
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my Wife has one of these , had the same prob , tbh after a week her light went off and all was back to normal , spooky ...3000 miles on all is still well
09-04-2008, 09:30 PM
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dont fancy driving it for a week if its the coil pack or something as will just be a load of fuel sitting on the piston.
i'll see what happens after a good service tomorrow
i'll see what happens after a good service tomorrow
10-04-2008, 09:16 PM
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well i gave it a service today and it dosent seam to have helped much.
plug number 4 seamed wetted and blacker than the rest so im thinking maybe its missing on number 4.
will be going on the computer over the weekend so hopefully it'll show up the problem.
plug number 4 seamed wetted and blacker than the rest so im thinking maybe its missing on number 4.
will be going on the computer over the weekend so hopefully it'll show up the problem.
10-04-2008, 11:15 PM
#24
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a service wont of helped anyway cos the light wont switch of by itself on a gm unless its german or some jap etc etc let us know what u find!
10-04-2008, 11:38 PM
#25
Yeah MAF is very common and as suggested earlier on, unplugging a knackered MAF will normaly result in a improvement. If that doesnt help, you can either spend a few days guessing or pay around 40quid to get it fault code read properly with Tech2, and the job mended first time round.
11-04-2008, 08:08 AM
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11-04-2008, 08:10 AM
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Yeah MAF is very common and as suggested earlier on, unplugging a knackered MAF will normaly result in a improvement. If that doesnt help, you can either spend a few days guessing or pay around 40quid to get it fault code read properly with Tech2, and the job mended first time round.
i didnt actually drive it with it off though.
looks like my mate will be around on sunday to get it on his computer. so hopefully i'll find the fault and get it fixed monday.
13-04-2008, 08:00 PM
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just to let u know, it was the coil pack on cylinder 4. would explain why the plug was slightly wetter than the rest.
hopefully get a new one on tomorrow.
cheers
hopefully get a new one on tomorrow.
cheers
13-04-2008, 08:23 PM
#29
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so it was missfiring then! or was it only slight? make sure to change plugs aswel as sometimes theyre the cause of coil pack failure at least its sorted
13-04-2008, 08:24 PM
#30
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see, we diagnosed this over the phone,,,, and we BOTH knew what it was, where did you get the coilpack from in the end ?
13-04-2008, 08:42 PM
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hope the coil pack sorts it for you..
By the way... the EML Flashing is the ECU`s way of informing you that there is a misfire OR a Fault that could damage the cat, The EML on constantly is informing you that there has or is a problem that will effect the Emissions. The SVS ( car with the spanner through it ) will be for all non emissions related faults..
Unplugging any of the sensors will only make the ECU use a default setting for that sensor and set more DTC`s that will make it harder to identify the actual fault.
its always best to get a code read out before any parts are fitted, it will only save you money in the long run ...
ign coils are relatively common on these, and as you say plug 4 was wet, you may well be onto the problem.
By the way... the EML Flashing is the ECU`s way of informing you that there is a misfire OR a Fault that could damage the cat, The EML on constantly is informing you that there has or is a problem that will effect the Emissions. The SVS ( car with the spanner through it ) will be for all non emissions related faults..
Unplugging any of the sensors will only make the ECU use a default setting for that sensor and set more DTC`s that will make it harder to identify the actual fault.
its always best to get a code read out before any parts are fitted, it will only save you money in the long run ...
ign coils are relatively common on these, and as you say plug 4 was wet, you may well be onto the problem.
14-04-2008, 07:36 AM
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it was hard to tell if the car was just running very poorly or had a slight miss fire tbh.
when i changed the plugs and one was wet i guessed that was the problem.
i havnt got a new one yet ginge, i'll bell u later about that infact.
when i changed the plugs and one was wet i guessed that was the problem.
i havnt got a new one yet ginge, i'll bell u later about that infact.
14-04-2008, 07:37 AM
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hope the coil pack sorts it for you..
By the way... the EML Flashing is the ECU`s way of informing you that there is a misfire OR a Fault that could damage the cat, The EML on constantly is informing you that there has or is a problem that will effect the Emissions. The SVS ( car with the spanner through it ) will be for all non emissions related faults..
Unplugging any of the sensors will only make the ECU use a default setting for that sensor and set more DTC`s that will make it harder to identify the actual fault.
its always best to get a code read out before any parts are fitted, it will only save you money in the long run ...
ign coils are relatively common on these, and as you say plug 4 was wet, you may well be onto the problem.
By the way... the EML Flashing is the ECU`s way of informing you that there is a misfire OR a Fault that could damage the cat, The EML on constantly is informing you that there has or is a problem that will effect the Emissions. The SVS ( car with the spanner through it ) will be for all non emissions related faults..
Unplugging any of the sensors will only make the ECU use a default setting for that sensor and set more DTC`s that will make it harder to identify the actual fault.
its always best to get a code read out before any parts are fitted, it will only save you money in the long run ...
ign coils are relatively common on these, and as you say plug 4 was wet, you may well be onto the problem.
cheers for that mate, bit more than the hand book tell you!
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