Vauxhall Corsa D 1.2 16v rough running
28-12-2012, 01:27 AM
#1
Vauxhall Corsa D 1.2 16v rough running
One for the Vauxhall folk on here! 
My mate called me earlier today as he has a 61 plate Corsa D 1.2 16v in his place with a strange running fault which he asked me to have a look at.
The car is very reluctant to rev and when it does manage to go up the revs, it does it with a lot of coughing and spluttering, when the throttle is released the engine just cuts out. With the engine just idling, it has the occasional cough but nowt major. When the car is being driven, it jerks about as if you were stomping on and off the throttle.
The car has no fault codes logged in it whatsoever.
With the air mass meter unplugged, it runs perfectly normal apart from a slight lack of power but it drives fine, revs up perfectly and comes back to an idle perfectly.
We put a new air mass meter on but it's exactly the same. I tried to read the measured values but his code reader is proper shite and only updates the reading every few seconds so it's hard to get accurate readings on and my one has packed up so I can't use that!!
The car has been into Vauxhall and they've put it down to fuel contamination (it isn't contaminated as we've checked that) and want to replace the coil pack, spark plugs, crank sensor, fuel pump, fuel tank, all fuel lines, throttle body, injectors, throttle pedal sensor and a couple of other things at a cost to the customer of well over 3k!!!
It's also been taken to another garage and had the lambda sensor replaced at a cost of over £350 (
) which didn't make any improvement yet the customer was still charged which I find disgusting.
I didn't really have long to spend on it today as I was busy doing other stuff but I'm going back on Monday to spend a bit longer with it and hopefully get to the bottom of it.
Just wondering if anyone's come across anything similar to this?
Cheers folks!
Gaz.
My mate called me earlier today as he has a 61 plate Corsa D 1.2 16v in his place with a strange running fault which he asked me to have a look at.
The car is very reluctant to rev and when it does manage to go up the revs, it does it with a lot of coughing and spluttering, when the throttle is released the engine just cuts out. With the engine just idling, it has the occasional cough but nowt major. When the car is being driven, it jerks about as if you were stomping on and off the throttle.
The car has no fault codes logged in it whatsoever.
With the air mass meter unplugged, it runs perfectly normal apart from a slight lack of power but it drives fine, revs up perfectly and comes back to an idle perfectly.
We put a new air mass meter on but it's exactly the same. I tried to read the measured values but his code reader is proper shite and only updates the reading every few seconds so it's hard to get accurate readings on and my one has packed up so I can't use that!!
The car has been into Vauxhall and they've put it down to fuel contamination (it isn't contaminated as we've checked that) and want to replace the coil pack, spark plugs, crank sensor, fuel pump, fuel tank, all fuel lines, throttle body, injectors, throttle pedal sensor and a couple of other things at a cost to the customer of well over 3k!!!
It's also been taken to another garage and had the lambda sensor replaced at a cost of over £350 (
) which didn't make any improvement yet the customer was still charged which I find disgusting.I didn't really have long to spend on it today as I was busy doing other stuff but I'm going back on Monday to spend a bit longer with it and hopefully get to the bottom of it.
Just wondering if anyone's come across anything similar to this?
Cheers folks!
Gaz.
28-12-2012, 02:24 AM
#4
I agree, it should be under warranty but it has been been into a Vauxhall dealer and they've put it down to fuel contamination which it isn't as we've checked this.
They want to replace all the stuff I mentioned in my original post at a cost of over £3k to the customer which seems to me that they want to replace everything that could possibly cause a running issue because they can't actually find what is causing the poor running.
They want to replace all the stuff I mentioned in my original post at a cost of over £3k to the customer which seems to me that they want to replace everything that could possibly cause a running issue because they can't actually find what is causing the poor running.
28-12-2012, 02:34 AM
#5
Too many posts.. I need a life!!
would fully comp insurance cover this. it is damage to the car. my insurance does cover me if wrong fuel put in. not the same maybe but surely worth looking into.
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28-12-2012, 09:11 AM
#12
Not as far as I'm aware they haven't.
Like I've already said, we've already checked the fuel and that is fine plus the fact the engine runs spot apart from a slight lack of power when the air mass meter is disconnected (lack of power due to going into a default setting as it can't read air mass but apart from that, drives normally).
The lady who's car it is has brought it to my mate to try and get it running correctly and once we find the cause, she will take it back to the dealer and see what they say.
I will find out what the problem is, I just didn't have the time yesterday, just thought I'd ask on here if anyone's had a similar issue.
Like I've already said, we've already checked the fuel and that is fine plus the fact the engine runs spot apart from a slight lack of power when the air mass meter is disconnected (lack of power due to going into a default setting as it can't read air mass but apart from that, drives normally).
The lady who's car it is has brought it to my mate to try and get it running correctly and once we find the cause, she will take it back to the dealer and see what they say.
I will find out what the problem is, I just didn't have the time yesterday, just thought I'd ask on here if anyone's had a similar issue.
28-12-2012, 09:24 AM
#14
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you need to take some live redings fella, PM me if you wnt or you can ring me 
has it been near any puddles etc?
dont belive customer as they sometimes ont know/ wont tell you
Sean.
has it been near any puddles etc?
dont belive customer as they sometimes ont know/ wont tell you
Sean.
28-12-2012, 09:30 AM
#15
We had a 55 plate 1200cc 16v and couldn't get to the bottom of it ? Similar to yours only dtc was random mis ! Tried most things 2 coil packs ! Plugs ,air flow meter etc , Ended up going to dealer and they also said fuel contamination ???? That drained it and fresh fuel problem solved we had taken a litre out of it and visually looked ok, we had the car back in for mot and service a few months later and said it had been 99% ok since ??? Spoke to a mate who worked at the dealer and he remembered the car and confirmed the fuel fault, As we all thought it was a cover up for the real fault ? You live and learn 
we had taken a litre out of it and visually looked ok, we had the car back in for mot and service a few months later and said it had been 99% ok since ??? Spoke to a mate who worked at the dealer and he remembered the car and confirmed the fuel fault, As we all thought it was a cover up for the real fault ? You live and learn
Last edited by paulmex; 28-12-2012 at 09:32 AM.
28-12-2012, 09:32 AM
#16
I wanted to check live readings yesterday but my mates machine is total shite that only updates every 5 or 6 seconds which is about as much use as a kick in the head and mine for some reason won't work!
Whenever I get a fault like this I always disregard what the owner says and start from scratch, the amount of people I come across that lie through their teeth to try and save face when they've fucked up is unreal!! Lol!
28-12-2012, 09:38 AM
#17
We had a 55 plate 1200cc 16v and couldn't get to the bottom of it ? Similar to yours only dtc was random mis ! Tried most things 2 coil packs ! Plugs ,air flow meter etc , Ended up going to dealer and they also said fuel contamination ???? That drained it and fresh fuel problem solved we had taken a litre out of it and visually looked ok, we had the car back in for mot and service a few months later and said it had been 99% ok since ??? Spoke to a mate who worked at the dealer and he remembered the car and confirmed the fuel fault, As we all thought it was a cover up for the real fault ? You live and learn
we had taken a litre out of it and visually looked ok, we had the car back in for mot and service a few months later and said it had been 99% ok since ??? Spoke to a mate who worked at the dealer and he remembered the car and confirmed the fuel fault, As we all thought it was a cover up for the real fault ? You live and learn Even though we felt the fuel was ok, we still drained it and flushed the lines, changed the filter etc and it made no difference but I don't see that it could be a fuel system fault as without the air mass meter plugged in, it runs well apart from a slight lack of power.
28-12-2012, 10:39 AM
#18
Yep it does seem odd ! I must admit I'm still not convinced it was a fuel fault? But all I can say is they cured it and we couldnt I might have mislead you with the dtc tho because once it was cleared the car would run rough but sometimes not flag up the code for miles,
I hate vauxhalls even more now lol
I might have mislead you with the dtc tho because once it was cleared the car would run rough but sometimes not flag up the code for miles, I hate vauxhalls even more now lol
28-12-2012, 10:58 AM
#19
Yep it does seem odd ! I must admit I'm still not convinced it was a fuel fault? But all I can say is they cured it and we couldnt I might have mislead you with the dtc tho because once it was cleared the car would run rough but sometimes not flag up the code for miles,
I hate vauxhalls even more now lol
I might have mislead you with the dtc tho because once it was cleared the car would run rough but sometimes not flag up the code for miles, I hate vauxhalls even more now lol
It makes me laugh when the people I go out to just say to me 'just plug it in and the computer tells you what's wrong with it'!! Yeah fucking right!!
28-12-2012, 12:46 PM
#20
Zee Germans are coming
Might not be the same but the wife's escort gti has the same running problems
Put it on a ford main dealer fault code reader and nothing showed up
Drove it to a mates garage and he plugged it in and nothing till he told me to crank it over and bingo
Intermittent crank signal
Crank sensor was on its way out
New sensor and bobs your aunt fannys ya uncle
Put it on a ford main dealer fault code reader and nothing showed up
Drove it to a mates garage and he plugged it in and nothing till he told me to crank it over and bingo
Intermittent crank signal
Crank sensor was on its way out
New sensor and bobs your aunt fannys ya uncle
28-12-2012, 05:13 PM
#22
I've found that life I needed.. It's HERE!!
known of a few throttle body's to go, but that prob wouldn't explain the maf thing,
my mate used to be a vauxhall master tech, and i know they had issue's with ecu's
but i'm not sure if it was anything like the prob you've said
i'd imagine if it was they'd know about it and would have done it under warranty
couldn't poss be the chain stretched?
if the maf was disconnected and it as running on base settings it might not notice the cam sensor is out of alignment? just a thought knowing what the chains are like on them
my mate used to be a vauxhall master tech, and i know they had issue's with ecu's
but i'm not sure if it was anything like the prob you've said
i'd imagine if it was they'd know about it and would have done it under warranty
couldn't poss be the chain stretched?
if the maf was disconnected and it as running on base settings it might not notice the cam sensor is out of alignment? just a thought knowing what the chains are like on them
28-12-2012, 05:23 PM
#23
known of a few throttle body's to go, but that prob wouldn't explain the maf thing,
my mate used to be a vauxhall master tech, and i know they had issue's with ecu's
but i'm not sure if it was anything like the prob you've said
i'd imagine if it was they'd know about it and would have done it under warranty
couldn't poss be the chain stretched?
if the maf was disconnected and it as running on base settings it might not notice the cam sensor is out of alignment? just a thought knowing what the chains are like on them
my mate used to be a vauxhall master tech, and i know they had issue's with ecu's
but i'm not sure if it was anything like the prob you've said
i'd imagine if it was they'd know about it and would have done it under warranty
couldn't poss be the chain stretched?
if the maf was disconnected and it as running on base settings it might not notice the cam sensor is out of alignment? just a thought knowing what the chains are like on them
and when the chain gives trouble it usually throws up cam sensor dtc,s ? Like the Nissan ones do.We only see them when there out of warrenty , usually high miles or had hardly any service history and then the owner wonders why they give trouble
28-12-2012, 05:36 PM
#24
big floppy donkey dick
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i also saw a 2yr old one have a under load lack of power, turned out a piece of aluminium had made its way into the inlet from somewhere, bent a rod causing slight miss under load!
28-12-2012, 06:28 PM
#25
If it works with the MAF unplugged (just a slight loss of power) and you plug it back in and it goes bad, try testing the wires between the MAF and the ECU - dodgy wiring will screw any output data from the MAF. If the sensor is completely disconnected the ecu can work with out it but not 100% so it works in a safety mode, if the wiring throuws the data out the ECU will not be able to detect a fault on the maf so the engine will run really bad.
hope this helps and good luck!
hope this helps and good luck!
29-12-2012, 09:49 AM
#27
Zee Germans are coming
31-12-2012, 04:06 PM
#29
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will be the A12xer lump in it with it being a 61plate. have you pulled the air filter out too make sure it's not wet? also pull the grey fuse board out the UEC and see if the wires are corroded as this can give throttle problems if there is more then 2 wires corroded then you need too replace the body harness.
disconnect the battery before you pull the body harness fuse board out the UEC as you need too undo the 10mm nut for the live on it aswell. just undo the clips on the side and pull it up an pop the black shroud off the bottom
disconnect the battery before you pull the body harness fuse board out the UEC as you need too undo the 10mm nut for the live on it aswell. just undo the clips on the side and pull it up an pop the black shroud off the bottom
Last edited by steve4i; 31-12-2012 at 04:09 PM.
31-12-2012, 04:21 PM
#30
will be the A12xer lump in it with it being a 61plate. have you pulled the air filter out too make sure it's not wet? also pull the grey fuse board out the UEC and see if the wires are corroded as this can give throttle problems if there is more then 2 wires corroded then you need too replace the body harness.
disconnect the battery before you pull the body harness fuse board out the UEC as you need too undo the 10mm nut for the live on it aswell. just undo the clips on the side and pull it up an pop the black shroud off the bottom
disconnect the battery before you pull the body harness fuse board out the UEC as you need too undo the 10mm nut for the live on it aswell. just undo the clips on the side and pull it up an pop the black shroud off the bottom
top advise corsa d have terrible problems in this area also check the ignition module got a bad problem with these at the moment sometimes they can cause a short and cause all kinds of problems
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