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Author Topic: Engine/exhaust warning light.....  (Read 4187 times)

Saint Steve

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Engine/exhaust warning light.....
« on: March 18, 2010, 04:34:25 pm »
has come on this afternoon  :scared:

Would the faulty Pcv cause this light to come on???

New Pcv arrives tommorow, so if this is caused the light to come on, will it go out when the new valve is fitted?? or is it a dealer then has to remove fault history to get light to go back out.

and most importantly, should i be driving the car if this light is lit???

Thanx chaps for any help

 :happy2:
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Offline SKAVIA

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Re: Engine/exhaust warning light.....
« Reply #1 on: March 18, 2010, 04:40:40 pm »
I had the same light come a a couple of weeks ago - dealer said it could be anything in the engine that triggered it from the MAP sensor to the exhaust  - not very helpful I know but sharing what I was told.
Incidently, while I was getting my WALK fitted, some guy with VAG-COM removed the fault before I could take it to the dealers thinking he was doing me a favour  :fighting:
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Offline Hedge

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Re: Engine/exhaust warning light.....
« Reply #2 on: March 18, 2010, 04:57:30 pm »
Have you plugged the MAF back in?
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Saint Steve

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Re: Engine/exhaust warning light.....
« Reply #3 on: March 18, 2010, 04:58:10 pm »
yes m8 i have
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Offline Hurdy

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Re: Engine/exhaust warning light.....
« Reply #4 on: March 18, 2010, 05:24:43 pm »
Don't worry about it Steve. If (as I suspect) it is linked to the faulty PCV or disconnection of the MAF/Airbox then it will be okay to run as normal and just get it checked out when you can via VCDS/VAG-COM and get the error code removed. :happy2:
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Offline GTI_Daz

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Re: Engine/exhaust warning light.....
« Reply #5 on: March 18, 2010, 05:34:19 pm »
what was the error code that has been produced as a result of the fault, assuming you have had this on VAGCOM. I had a similar problem a few months back and I had to have a new cat fitted. under warranty thank god  :sick:
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Offline Hurdy

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Re: Engine/exhaust warning light.....
« Reply #6 on: March 18, 2010, 05:39:02 pm »
Steve hasn't got direct access to VCDS Daz.

I hope it isn't his cat as he's just got a Milly downpipe fitted a while back!
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Offline GTI_Daz

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Re: Engine/exhaust warning light.....
« Reply #7 on: March 18, 2010, 05:41:37 pm »
ahhh right. didnt want to worry him or nething but everything the dealer tried didnt seem to work so they just replaced my cat and that sorted it, hope all is well  :happy2:
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Offline MAT ED30

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Re: Engine/exhaust warning light.....
« Reply #8 on: March 18, 2010, 05:46:07 pm »
have got stage 2 map after fitting the down pipe as that will also set the light off
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Offline Aparoon

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Re: Engine/exhaust warning light.....
« Reply #9 on: March 18, 2010, 05:58:52 pm »
Theres a fault code reader built into the bf handset, takes about 30seconds to give the fault code :happy2:
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Offline Hurdy

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Re: Engine/exhaust warning light.....
« Reply #10 on: March 18, 2010, 06:03:51 pm »
Quote from: Aparoon on March 18, 2010, 05:58:52 pm
Theres a fault code reader built into the bf handset, takes about 30seconds to give the fault code :happy2:

Well I never knew that!
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Offline Hedge

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Re: Engine/exhaust warning light.....
« Reply #11 on: March 18, 2010, 06:30:34 pm »
Quote from: MAT ED30 on March 18, 2010, 05:46:07 pm
have got stage 2 map after fitting the down pipe as that will also set the light off

He has stage 2 and that doesn't bring the light on in my experience  :wink:

Quote from: Aparoon on March 18, 2010, 05:58:52 pm
Theres a fault code reader built into the bf handset, takes about 30seconds to give the fault code :happy2:

Which needs enabling by Superchips....
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Offline QD MBE

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Re: Engine/exhaust warning light.....
« Reply #12 on: March 18, 2010, 06:51:25 pm »
Steve,

Missed you call, sorry mate.  I think as Hurdy says it will be linked to the leaking PCV.  Perhaps ask your friendly dealer to download the code and see what that brings up.

The erratic idle is also a pointer to this.
« Last Edit: March 18, 2010, 07:09:58 pm by stokeballoon »
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Offline Aparoon

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Re: Engine/exhaust warning light.....
« Reply #13 on: March 18, 2010, 07:13:56 pm »
My handset reads faults and has never been enabled  by sc :confused:

Plug in, press no rather than following usual process, read faults, then clear them...
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Offline Hedge

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Re: Engine/exhaust warning light.....
« Reply #14 on: March 18, 2010, 08:14:39 pm »
Not quite related to the PCV other than someone running the car without the airbox on.  :surprised:

2 Faults Found:
000256 - Mass Air Flow Sensor (G70): Supply Voltage
               P0100 - 004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 0
                    Fault Frequency: 1
                    Mileage: 69588 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 0 /min
                    Load: 0.0 %
                    Speed: 0.0 km/h
                    Temperature: 77.0°C
                    Temperature: 44.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 12.319 V

008583 - Bank 1; System too Lean at Idle
               P2187 - 004 - No Signal/Communication - MIL ON
             Freeze Frame:
                    Fault Status: 11100100
                    Fault Priority: 0
                    Fault Frequency: 1
                    Mileage: 69609 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 09:31:46

             Freeze Frame:
                    RPM: 768 /min
                    Load: 16.1 %
                    Speed: 0.0 km/h
                    Temperature: 90.0°C
                    Temperature: 44.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 13.716 V

Readiness: 0000 0000


All cleared and saved. Short test drive didn't show anything further so (touch wood) job done.

So then I coded his Nav and enabled his hidden menu all without any lovin'.  :sad1:
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