EPC Light on

4.2 V8 32v Naturally Aspirated - 414 bhp
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RS4JAMO
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EPC Light on

Post by RS4JAMO » Tue Nov 24, 2015 5:30 pm

Hi,

After a 50 mile journey last night my EPC light decided to come on and restrict the power output. This included the Engine Management light I pulled over and switches off the ignition and then restarted but still there.

Went down this morning and started the old girl and the EPC has gone off but the engine management light is still illuminated!! I purchased a VAG CCOM USB cable (HEX & CAN) from ebay a little while ago (Ross Tech original cable) and downloaded the software from the Ross Tech site but when I connect it up the light changes from amber to green on the cable but it does not find the interface??? any ideas greatly received??
RS4 B7 Saloon, Phantom Black with SS+. LED's all inside & out with Dectane LED tailights. deflap, MRC Stage 2, Carbon Clean, no pre-cats, Blueflame non res cat back exhaust, AP Racing Discs, Titanium alloys and mirrors, 438PS
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PetrolDave
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Re: EPC Light on

Post by PetrolDave » Tue Nov 24, 2015 6:41 pm

Did you turn the ignition on? It won't find the interface without that.
Gone: 2006 B7 RS4 Avant (Phantom Black)
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iduff
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Re: EPC Light on

Post by iduff » Tue Nov 24, 2015 6:52 pm

Have you done the Options | Test | Save bit on the interface once it's plugged into a running car? Nothing happens with VCDS until you do that.
B7 RS4 Sedan, Phantom Black Pearl
Valved non-resonated Milltek with 200-cell DPs, and JHM tune, 10mm spacers
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Former Quattros
B5 S4 Sedan, C4 S6 Avant, Type 89 Coupe Quattro, Type 44 Quattro Sedan
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RS4JAMO
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Re: EPC Light on

Post by RS4JAMO » Wed Nov 25, 2015 12:15 am

hi guys,

yes ignition on and option test is where I am getting the interface not found error. really annoying as I want to find out the error and reset!
RS4 B7 Saloon, Phantom Black with SS+. LED's all inside & out with Dectane LED tailights. deflap, MRC Stage 2, Carbon Clean, no pre-cats, Blueflame non res cat back exhaust, AP Racing Discs, Titanium alloys and mirrors, 438PS
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PetrolDave
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Re: EPC Light on

Post by PetrolDave » Wed Nov 25, 2015 6:25 pm

RS4JAMO wrote:yes ignition on and option test is where I am getting the interface not found error.!
I wonder if the fuse that supplies power to the OBD socket is blown - or has been removed?
Gone: 2006 B7 RS4 Avant (Phantom Black)
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X1MYS
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Re: EPC Light on

Post by X1MYS » Wed Dec 02, 2015 12:21 pm

Hi guys I'm getting the same issue started with the doc light coming on was intermittent comes on then goes off had it plugged in to check and it came up with this
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X1MYS
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Re: EPC Light on

Post by X1MYS » Wed Dec 02, 2015 12:23 pm

ImageUploadedByTapatalk1449055384.446251.jpg
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X1MYS
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Re: EPC Light on

Post by X1MYS » Wed Dec 02, 2015 12:24 pm

Any one had this issue ? Is this just a sensor issue ? Now the engine light is also on constant and the epc comes and then off !!
Any ideas much appreciated
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