EPC issue
EPC issue
Folks when car is above 50 (and normally when in S mode) when I accelerate hard I get the EPC light come on with warning not to go over 4K revs this has happened a few times now. Anyone experienced anything similar?
Volvo XC90
C7 - RS6
C6 - RS6
B5 - RS4
C7 - RS6
C6 - RS6
B5 - RS4
Re: EPC issue
VCDS will tell you what it is, most likely a sensor somewhere needs replacing.
Had something similar on a S4 V6T, needed a new oil pressure sensor.
Had something similar on a S4 V6T, needed a new oil pressure sensor.
Re: EPC issue
have you got ceramics? that could be the reason......
2020 Range rover Sport SVR Urban
2017 911 991.2 Turbo S
2007 Audi A3 2.0T Quattro
Gone:-C6 RS6 Saloon - Daytona Grey - ceramics, stage 2, gearbox map, quad tip miltek, pre cat delete and Mrc filters = 753ps + 1052NM
2017 911 991.2 Turbo S
2007 Audi A3 2.0T Quattro
Gone:-C6 RS6 Saloon - Daytona Grey - ceramics, stage 2, gearbox map, quad tip miltek, pre cat delete and Mrc filters = 753ps + 1052NM
Re: EPC issue
But they aren't applied when the light comes on? Plus they've been coded in.
Volvo XC90
C7 - RS6
C6 - RS6
B5 - RS4
C7 - RS6
C6 - RS6
B5 - RS4
Re: EPC issue
Yes, I had this. New throttle body, as MRC suspected throttle position sensor which is built into the throttle body, that didn't work, next was some wiring to the ECU, tested hard on dyno, all ok, soon returned... It will occasionally come on again on hard throttle, need to have it back in but been too busy and only done 214 miles in it since Dec, so never been a priority.
2009 Audi RS 6 Saloon V10 - 420mm Ceramics, Keyless, Soft Close, Adaptive Cruise, Glass Sunroof, Blinds, Twin Pane & UV, Freeview & DAB, High Beam Assist, MTM bits, Audi Exclusive Bits, MRC, Milltek, GYEF1 ASY2's, Bluetooth streaming music to AMI mod - 753PS, 1021 NM
2016 Audi S3 Saloon S-Tronic, Sepang, B&O, Tech Pack w/connect, 19" 5 Arm Wing Alloys, Comfort Pack, LED Light Pack - Company Car
1995 Audi A8 4.2 V8 quattro Sport
2016 Audi S3 Saloon S-Tronic, Sepang, B&O, Tech Pack w/connect, 19" 5 Arm Wing Alloys, Comfort Pack, LED Light Pack - Company Car
1995 Audi A8 4.2 V8 quattro Sport
-
- 2nd Gear
- Posts: 199
- Joined: Wed May 04, 2016 8:48 pm
Re: EPC issue
I just discovered tonight there is epc sport mode ?? And if held epc goes off anyone know what epc sport mode entails
Re: EPC issue
Stu - Do you mean the "ESP" (traction control) button as RTD is talking about the EPC (electronic power control warning) which is a dash warning light and a message displayed on the DIS screen telling you of a problem with the car?
If it's ESP you're are asking about then a short press is supposed to "switch off" the traction control system (TCS) only it doesn't fully, it just allows a lot more wheel spin before activating.
If you hold the button down for 3+ seconds it switches the TCS off (completely off this time) and also the ESP (electronic stability program) gets switched off too. The ESP brakes the rear wheels individually to stop the back end moving about under heavy acceleration and braking.
Personally I never found 730hp to be enough power (outside 1st gear or the wet) to cause the TCS to activate when accelerating full throttle in a straight line. However at 900+ a 2nd-3rd full throttle change (with a short press to switch TCS off) still causes the TCS to reactivate when accelerating in a straight line. I found that with a long press the combination of TCS and ESP both being switched off removes *all* TCS (unlike a short press) and you can have full throttle changes with a touch of wheel spin with no problems.
If it's ESP you're are asking about then a short press is supposed to "switch off" the traction control system (TCS) only it doesn't fully, it just allows a lot more wheel spin before activating.
If you hold the button down for 3+ seconds it switches the TCS off (completely off this time) and also the ESP (electronic stability program) gets switched off too. The ESP brakes the rear wheels individually to stop the back end moving about under heavy acceleration and braking.
Personally I never found 730hp to be enough power (outside 1st gear or the wet) to cause the TCS to activate when accelerating full throttle in a straight line. However at 900+ a 2nd-3rd full throttle change (with a short press to switch TCS off) still causes the TCS to reactivate when accelerating in a straight line. I found that with a long press the combination of TCS and ESP both being switched off removes *all* TCS (unlike a short press) and you can have full throttle changes with a touch of wheel spin with no problems.
***OLD*** Daytona C5 RS6 Avant - MRC'd - 500HP & 820NM (PistonHeads Link).
***NEW*** Daytona C6 RS6 Avant - MRC'd - 955HP & 1200NM (PistonHeads Link)
***NEW*** Daytona C6 RS6 Avant - MRC'd - 955HP & 1200NM (PistonHeads Link)
-
- 2nd Gear
- Posts: 199
- Joined: Wed May 04, 2016 8:48 pm
Re: EPC issue
Yes Ian I was meaning the traction control esp lol many thanks dude
Who is online
Users browsing this forum: No registered users and 163 guests