2014 E63 Tuning and Alert Situation
#1
2014 E63 Tuning and Alert Situation
I have a question for the members here. I have a 14 E63 and have been having a weird situation and was hoping for some answers. The car is stock other than a stage one tune. (I won't say the name of the tune publicly cause I'm waiting to here from them) that I have put about 10K miles on since FEB of this year. On Saturday I was traveling from the Bay Area down to Los Angels and back and had a situation pop up. After doing one hard pull against an STI I had the check engine light come on. Did not have my scanner at the time. Car still drove fine and was not misfiring and confinued to drive fine. However after that I every time I tried accelerate beyond 3K rpm the car cut rpms and slowed up. No misfires. But I could gently reapply the throttle and hold at around 2500rpm and cruise fine. After spending a few hours at Universal Studios we got back in to drive back to Bay Area and the CEL went away on its own. However the first time I tried to open it up again the same thing happened. After getting up today I pulled the codes at got P0087 and cleared the does. Later on today I also I tried a hard pull from a dig and first two gears were find but 3rd gear at around 4k it cut again. Pulled the code and same P0087. I decided to flash the car back to stock with the MyGenius scanner and took it back out and beat on it hard and the car pulled strong, no CEL, no rpm cuts or Anything. My question does this sound like a problem with the tune, because I have had almost a year of good usage before this happened or is something degrading and the increased demands of the tuning are causing issues. (Also the Plugs were changed in Feb with the flashing of the tune with MB OEM plugs while having a major service at a MB dealer)
Also towards the end of the trip getting back to Bay Area last night I kept getting an alert on the dash saying to consider taking a brake. I was not weaving and was maintaining good lane discipline. How can I turn that off or do I have to program it out. (Was driving for about 11hrs yesterday).
Also towards the end of the trip getting back to Bay Area last night I kept getting an alert on the dash saying to consider taking a brake. I was not weaving and was maintaining good lane discipline. How can I turn that off or do I have to program it out. (Was driving for about 11hrs yesterday).
#2
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2014 E63S; AMS 100 octane ecu tune; edok tcu tune; BB intakes; dyno tuned
Were you running low on gas at the time of these hard runs? Like less than 1/4 tank?
second item - in settings on the dash you can adjust the Nannie's monitoring your wheel control etc, lane change alerts, distronic etc
second item - in settings on the dash you can adjust the Nannie's monitoring your wheel control etc, lane change alerts, distronic etc
Last edited by PeterUbers; 11-27-2023 at 01:06 AM.
#3
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MY'14 W212 M276 3.5NA @60kMi
troubleshooting lean starvation
I have a question for the members here. I have a 14 E63 and have been having a weird situation and was hoping for some answers. The car is stock other than a stage one tune. (I won't say the name of the tune publicly cause I'm waiting to here from them) that I have put about 10K miles on since FEB of this year. On Saturday I was traveling from the Bay Area down to Los Angels and back and had a situation pop up. After doing one hard pull against an STI I had the check engine light come on. Did not have my scanner at the time. Car still drove fine and was not misfiring and confinued to drive fine. However after that I every time I tried accelerate beyond 3K rpm the car cut rpms and slowed up. No misfires. But I could gently reapply the throttle and hold at around 2500rpm and cruise fine. After spending a few hours at Universal Studios we got back in to drive back to Bay Area and the CEL went away on its own. However the first time I tried to open it up again the same thing happened. After getting up today I pulled the codes at got P0087 and cleared the does. Later on today I also I tried a hard pull from a dig and first two gears were find but 3rd gear at around 4k it cut again. Pulled the code and same P0087. I decided to flash the car back to stock with the MyGenius scanner and took it back out and beat on it hard and the car pulled strong, no CEL, no rpm cuts or Anything. My question does this sound like a problem with the tune, because I have had almost a year of good usage before this happened or is something degrading and the increased demands of the tuning are causing issues. (Also the Plugs were changed in Feb with the flashing of the tune with MB OEM plugs while having a major service at a MB dealer)
Also towards the end of the trip getting back to Bay Area last night I kept getting an alert on the dash saying to consider taking a brake. I was not weaving and was maintaining good lane discipline. How can I turn that off or do I have to program it out. (Was driving for about 11hrs yesterday).
Also towards the end of the trip getting back to Bay Area last night I kept getting an alert on the dash saying to consider taking a brake. I was not weaving and was maintaining good lane discipline. How can I turn that off or do I have to program it out. (Was driving for about 11hrs yesterday).
LOW FUEL PRESSURE is center stage.
Obviously if the ECU firmware highjack is bugging your engine, you can figure that one yourself.
Some love tuning... some regret it
![nix](https://mbworld.org/forums/images/smilies/nixweiss.gif)
Now you can chart your fuel pressure vs. RPM.
Low pressure module may be starving HPFP.
Low voltage on extended cruise is a reality - Keep an eye on battery display or let your trusted indy do all the fun work.
It's not just tune gone bad: you have to dig in the data to understand why your lost power is starved from gas.
Last edited by CaliBenzDriver; 11-27-2023 at 02:39 AM.
#5
Super Member
I have a question for the members here. I have a 14 E63 and have been having a weird situation and was hoping for some answers. The car is stock other than a stage one tune. (I won't say the name of the tune publicly cause I'm waiting to here from them) that I have put about 10K miles on since FEB of this year. On Saturday I was traveling from the Bay Area down to Los Angels and back and had a situation pop up. After doing one hard pull against an STI I had the check engine light come on. Did not have my scanner at the time. Car still drove fine and was not misfiring and confinued to drive fine. However after that I every time I tried accelerate beyond 3K rpm the car cut rpms and slowed up. No misfires. But I could gently reapply the throttle and hold at around 2500rpm and cruise fine. After spending a few hours at Universal Studios we got back in to drive back to Bay Area and the CEL went away on its own. However the first time I tried to open it up again the same thing happened. After getting up today I pulled the codes at got P0087 and cleared the does. Later on today I also I tried a hard pull from a dig and first two gears were find but 3rd gear at around 4k it cut again. Pulled the code and same P0087. I decided to flash the car back to stock with the MyGenius scanner and took it back out and beat on it hard and the car pulled strong, no CEL, no rpm cuts or Anything. My question does this sound like a problem with the tune, because I have had almost a year of good usage before this happened or is something degrading and the increased demands of the tuning are causing issues. (Also the Plugs were changed in Feb with the flashing of the tune with MB OEM plugs while having a major service at a MB dealer)
Also towards the end of the trip getting back to Bay Area last night I kept getting an alert on the dash saying to consider taking a brake. I was not weaving and was maintaining good lane discipline. How can I turn that off or do I have to program it out. (Was driving for about 11hrs yesterday).
Also towards the end of the trip getting back to Bay Area last night I kept getting an alert on the dash saying to consider taking a brake. I was not weaving and was maintaining good lane discipline. How can I turn that off or do I have to program it out. (Was driving for about 11hrs yesterday).
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#6
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04 E55 AMG (totaled), 07 S550 4Matic, 14 E63S
Tasos has a video on how to check fuel pump duty cycle (not sure which one) and what normal values are at stock power levels. Don't play games with fuel supply issues on a tuned M157. Find the problem and fix it ASAP.
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#7
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On the shoulder
I agree with both of these. Best of luck.
Sparks have 10k on them - are they stock?
There have been instances in my area of a specific gas station "faking" the grade of gas - aka - putting water in with the gas or selling 87 in the 93 pump. Obviously caused issues for those people that bought that fuel - I will never fill up there.
Fuel pumps - already mentioned by others.
Logging, if you are able, could help provide some answers. People here are usually helpful in analyzing others' logs to diagnose issues. That or a good indy would be helpful. Again, best of luck.
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#8
Super Member
Sounds like a fuel delivery issue, not a tune problem. The problem likely goes away with the stock tune because boost is lower and there's less fuel demand. If the stage 1 tune is on the rich side, it will make the problem even more obvious. How many total miles on the car?
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#9
The car has about 71000 on it right now and plugs were OEM from the MB dealer. Can anyone here recomend a good data logger to get some more info from running the car and provide a link to Tasos material. (I don't know who that is) Finally does this situation sound more like the in tank pump is going or is it the high pressure pump on the engine? And is their an effective way to diagnoise the problem as DIYer. Thanks for all the great responses to the post.
#10
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04 E55 AMG (totaled), 07 S550 4Matic, 14 E63S
Unfortunately I don't think these are the ones I was looking for (duty cycle commentary).
Still not the one I was looking for but shows a diagnosis of the low pressure pump. The video I am looking for explains what duty cycle is normal and what shows a potential fuel starvation issue.
Last edited by kevm14; 11-28-2023 at 05:34 AM.
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#11
Super Member
https://www.youtube.com/watch?v=qTp9gNcbJII
https://www.youtube.com/watch?v=X6xqqJb4KX4
Unfortunately I don't think these are the ones I was looking for (duty cycle commentary).
https://youtu.be/l9A98X9A3V4?si=iCbCpgiYEP_2ziDZ&t=424
Still not the one I was looking for but shows a diagnosis of the low pressure pump. The video I am looking for explains what duty cycle is normal and what shows a potential fuel starvation issue.
https://www.youtube.com/watch?v=X6xqqJb4KX4
Unfortunately I don't think these are the ones I was looking for (duty cycle commentary).
https://youtu.be/l9A98X9A3V4?si=iCbCpgiYEP_2ziDZ&t=424
Still not the one I was looking for but shows a diagnosis of the low pressure pump. The video I am looking for explains what duty cycle is normal and what shows a potential fuel starvation issue.
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#12
Senior Member
The car has about 71000 on it right now and plugs were OEM from the MB dealer. Can anyone here recomend a good data logger to get some more info from running the car and provide a link to Tasos material. (I don't know who that is) Finally does this situation sound more like the in tank pump is going or is it the high pressure pump on the engine? And is their an effective way to diagnoise the problem as DIYer. Thanks for all the great responses to the post.
what part of the Bay Area are you in? I know a Benz performance shop in Hayward that does data logging.
#13
Located in Fairfield, so Hayward isn't that far away.
UPDATE:
Same code is coming up now that the car is Detuned. I used my portable scan tool onboard monitoring function and got the problem to happen again while viewing the fuel pressure. Fuel pressure went from 3000ish psi down to about 700 psi when the pressure cut. Is this indicative of the low pressure pump failing?
UPDATE:
Same code is coming up now that the car is Detuned. I used my portable scan tool onboard monitoring function and got the problem to happen again while viewing the fuel pressure. Fuel pressure went from 3000ish psi down to about 700 psi when the pressure cut. Is this indicative of the low pressure pump failing?
Last edited by at1023; 12-01-2023 at 01:37 AM.
#15
Super Member
Located in Fairfield, so Hayward isn't that far away.
UPDATE:
Same code is coming up now that the car is Detuned. I used my portable scan tool onboard monitoring function and got the problem to happen again while viewing the fuel pressure. Fuel pressure went from 3000ish psi down to about 700 psi when the pressure cut. Is this indicative of the low pressure pump failing?
UPDATE:
Same code is coming up now that the car is Detuned. I used my portable scan tool onboard monitoring function and got the problem to happen again while viewing the fuel pressure. Fuel pressure went from 3000ish psi down to about 700 psi when the pressure cut. Is this indicative of the low pressure pump failing?
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#17
Senior Member
Located in Fairfield, so Hayward isn't that far away.
UPDATE:
Same code is coming up now that the car is Detuned. I used my portable scan tool onboard monitoring function and got the problem to happen again while viewing the fuel pressure. Fuel pressure went from 3000ish psi down to about 700 psi when the pressure cut. Is this indicative of the low pressure pump failing?
UPDATE:
Same code is coming up now that the car is Detuned. I used my portable scan tool onboard monitoring function and got the problem to happen again while viewing the fuel pressure. Fuel pressure went from 3000ish psi down to about 700 psi when the pressure cut. Is this indicative of the low pressure pump failing?
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#19
Don't try to cut corners and try to diagnose/fix it yourself
Just remember, one over sight and you are looking at $35,000+ (motor rebuild)
Have the car properly looked at, data logged and fix what ever needs fixing
Just remember------------You gotta pay to play or drive stock-------------
Just remember, one over sight and you are looking at $35,000+ (motor rebuild)
Have the car properly looked at, data logged and fix what ever needs fixing
Just remember------------You gotta pay to play or drive stock-------------