Limp mode
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2014 C63 Amg
Limp mode
tracking today . But have problem . Even with ESP turned off it went into limp mode right on track . One time three times during the session . I have track wheels with no sensors , so the tpms light is on and race seats with harness so the seatbelt light stays on . However I've always done this and not had a problem . So it happened this morning and so I turned the ESP off . And ran one session and then happened repeatad . What can I do ?
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CLK 63 AMG Black Series, A45 AMG
Did you change your race wheels or tires ? A friend has the same issue on a C63BS with Pirelli trofeor R only, no issue with PS Cup 2. For him is was due to the very hard "side" of the trofeo.
Perhaps an ABS/ESP sensor too.
For the seat belt light (and sound ?) when running harness you can deactivate it with SDS.
Perhaps an ABS/ESP sensor too.
For the seat belt light (and sound ?) when running harness you can deactivate it with SDS.
Thread Starter
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2014 C63 Amg
Curious why tire brand made that difference . I lowered my front tire pressure about 4-6 lbs but that's it .
so scanning at track here are the codes z
p2629
p0050
p0150
p0610
p2626
p2629
p0050 again and
p2626 again .
so would these send my car into limp mode on track. Tire pressure is 36 front and it calls for 46 on door but that's too high for track tire . So would tpms put car into limp mode even with ESP off?
so scanning at track here are the codes z
p2629
p0050
p0150
p0610
p2626
p2629
p0050 again and
p2626 again .
so would these send my car into limp mode on track. Tire pressure is 36 front and it calls for 46 on door but that's too high for track tire . So would tpms put car into limp mode even with ESP off?
Senior Member
Joined: Mar 2007
Posts: 380
Likes: 31
CLK 63 AMG Black Series, A45 AMG
Curious why tire brand made that difference . I lowered my front tire pressure about 4-6 lbs but that's it .
so scanning at track here are the codes z
p2629
p0050
p0150
p0610
p2626
p2629
p0050 again and
p2626 again .
so would these send my car into limp mode on track. Tire pressure is 36 front and it calls for 46 on door but that's too high for track tire . So would tpms put car into limp mode even with ESP off?
so scanning at track here are the codes z
p2629
p0050
p0150
p0610
p2626
p2629
p0050 again and
p2626 again .
so would these send my car into limp mode on track. Tire pressure is 36 front and it calls for 46 on door but that's too high for track tire . So would tpms put car into limp mode even with ESP off?
For TMPS I don't know, do not have it on my european version
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Posts: 478
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CLK63 AMG Black Series
If those are O2 sensor codes then you may be running lean (i doubt it would be rich). If so, then the ECU will protect the engine by going into limp mode.
What was the temperature at the track that day?
What kind of fuel were you running?
Any ECU tunes installed?
The TPMS and Seat-belt errors should not be related to limp mode, IMHO. I have those warning lights as well and have no problems on the track.
What was the temperature at the track that day?
What kind of fuel were you running?
Any ECU tunes installed?
The TPMS and Seat-belt errors should not be related to limp mode, IMHO. I have those warning lights as well and have no problems on the track.
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Thread Starter
Member
Joined: May 2015
Posts: 163
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2014 C63 Amg
I thought the same thing about temp or something but when it goes into limp it says ESP inoperative. Even with the ESP off ' it still goes In limp and says the same thing , like I'm hitting the limit if the yaw sensor, which is impossible . You should. S able to slide, drift , do donuts whatever before it kicks in
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From: UNKNOWN
NB8 PARACHUTE
`
I would get the O2 sensor codes checked as to why
they are showing up
What kind of fuel?
To the OP please keep this thread updated
Thank-You
D.B.
`
I would get the O2 sensor codes checked as to why
they are showing up
What kind of fuel?
To the OP please keep this thread updated
Thank-You
D.B.
`
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Joined: Sep 2004
Posts: 478
Likes: 6
CLK63 AMG Black Series
This could be a faulty sensor issue which is causing a compounded issue that presents itself as an ESP error.
Does the issue appear after heavy braking? If not, is there anything in common when the issue does appear? For example, coming into or out of a turn? Full or partial throttle?
Curious to find out why this is happening...
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2014 C63 Amg
93 octane and usually under very to full throttle . Sometimes on the straight , so no real movement . AMG person I'm taking it to next Tuesday said it might be a speed sensor on just one wheeel
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CLK 63 AMG Black Series, A45 AMG
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CLK63 AMG Black Series
Hopefully the diagnostics the AMG tech can run will provide more insight to the codes you are receiving. Either the O2 sensor code is causing the limp mode or the ESP warning is causing the limp mode. However IMHO, I have a feeling they are not related errors and the O2 sensor is causing the limp mode.
If the Renntech tune is pushing close to the tolerances (or past) of the O2 sensor for the fuel trim or timing parameters, then it could result in this situation. Although, Renntech is good at testing their tunes for this type of thing. So you may simple have a faulty sensor.
When was the last time the air filters and fuel filters were changed?
If the Renntech tune is pushing close to the tolerances (or past) of the O2 sensor for the fuel trim or timing parameters, then it could result in this situation. Although, Renntech is good at testing their tunes for this type of thing. So you may simple have a faulty sensor.
When was the last time the air filters and fuel filters were changed?
Last edited by MOFLO; Aug 30, 2017 at 02:22 PM.
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CLK 63 AMG Black Series, A45 AMG
Weistec has an airl/oil separator. It is good quality even if not really cheap
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2014 C63 Amg
Ok so car is at AMG place . They found the accelator pedal module is bad . He said that's why it was going into ESP limp mode . Might not do it under regular exceleration but mayunder wot or close the pedal tracer sensor will freak out the car . Does this sound right ?
