NefMoto > Technical > Diagnostics > limp mode, TTQS 1.8t, no codes.. swap ecu's software same thing.. very odd
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Author Topic: limp mode, TTQS 1.8t, no codes.. swap ecu's software same thing.. very odd  (Read 24045 times)
ibizacupra
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« Reply #15 on: February 21, 2014, 10:55:19 AM »
Quote from: nyet on February 21, 2014, 10:27:46 AM
Please add pedal acceleration and throttle plate angle to your logs.

added throttle plate.. not sure which parameter acc pdl acceleration is..
you will see initiall full throttle nothing, then me rapid on and off pedal and it starts to work.

wped for pedal? just added and re-linked below


>>log>> http://www.badger-5.com/bin/ttqs_stuff/8n0906018ca-0261208086-1037375111-qs-read_template_20140221_180317.csv

thankyou for reading
« Last Edit: February 21, 2014, 11:07:13 AM by ibizacupra » Logged
phila_dot
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« Reply #16 on: February 21, 2014, 11:28:50 AM »
Looks like you've narrowed down the problem to BBLDR.

WGDC is 0 because B_ldr is clear.

Do you have any RAM variables from BBLDR that you can log?
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nyet
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« Reply #17 on: February 21, 2014, 11:31:52 AM »
Your accell pedal position sensor is broken.
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ibizacupra
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« Reply #18 on: February 21, 2014, 11:41:56 AM »
Quote from: nyet on February 21, 2014, 11:31:52 AM
Your accell pedal position sensor is broken.

Thats where we've got to in poke and hope terms.. another pedal coming tomorrow.

What in the log makes you see accell pedal position sensor is broken nyet?
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phila_dot
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« Reply #19 on: February 21, 2014, 11:43:49 AM »
Quote from: nyet on February 21, 2014, 11:31:52 AM
Your accell pedal position sensor is broken.

I see wped = 100 and plsol > 2000 mbar and b_ldr = 0

It would be easier to see what's going on with a real pull.

Op, are you just stabbing the pedal in the logs or is pedal position dropping out?
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nyet
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« Reply #20 on: February 21, 2014, 11:46:43 AM »
Quote from: ibizacupra on February 21, 2014, 11:41:56 AM
Thats where we've got to in poke and hope terms.. another pedal coming tomorrow.

What in the log makes you see accell pedal position sensor is broken nyet?


Uh seriously? ECUxPlot can't even run any of its filtering because your ped position and throttle plate are flapping like an autistic child's arms.

Also, in the future, try to get a full run with the pedal to the floor from 2.5k to redline.
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« Reply #21 on: February 21, 2014, 11:48:52 AM »
Were you tap dancing on the pedal?
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« Reply #22 on: February 21, 2014, 11:58:22 AM »
Quote from: nyet on February 21, 2014, 11:48:52 AM
Were you tap dancing on the pedal?

I was assuming so because of this

Quote from: ibizacupra on February 21, 2014, 10:22:51 AM
logged B_ldr is 0 until I prod acc pedal on off rapidly and it will come to life.
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nyet
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« Reply #23 on: February 21, 2014, 12:36:25 PM »
B_ldr looks fine in the area where ped is constant...
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« Reply #24 on: February 21, 2014, 12:52:30 PM »
Quote from: nyet on February 21, 2014, 12:36:25 PM
B_ldr looks fine in the area where ped is constant...

Hard to tell much from that log really.

There's no delay so the bit should set instantly when the desired PR is greater than one which it fails to do numerous times thoughout the log.
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ibizacupra
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« Reply #25 on: February 22, 2014, 01:44:58 AM »
Quote from: phila_dot on February 21, 2014, 11:43:49 AM
I see wped = 100 and plsol > 2000 mbar and b_ldr = 0

It would be easier to see what's going on with a real pull.

Op, are you just stabbing the pedal in the logs or is pedal position dropping out?

I am stabbing the pedal as said, as this for whatever reason brings it to life
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ibizacupra
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« Reply #26 on: February 22, 2014, 01:47:41 AM »
Quote from: nyet on February 21, 2014, 11:46:43 AM
Uh seriously? ECUxPlot can't even run any of its filtering because your ped position and throttle plate are flapping like an autistic child's arms.

Also, in the future, try to get a full run with the pedal to the floor from 2.5k to redline.



nyet

You may have missed the bit where I say "only" when I stab at the pedal does the thing come to life. I could do full pulls pedal to floor and nothing happens at all.. Thats why I have'nt logged it, it shows N75 doing nothing..
I cant figure why stabbing the pedal always brings it to life, and thats why the pedal log last posted looks erratic as hell, its because I am stabbing it. (tap dancing on pedal Smiley )
Apply pedal down in normal driving, it does nothing... no n75%

weird huh?
« Last Edit: February 22, 2014, 01:49:38 AM by ibizacupra » Logged
ibizacupra
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« Reply #27 on: February 22, 2014, 01:55:36 AM »
Quote from: nyet on February 21, 2014, 11:48:52 AM
Were you tap dancing on the pedal?

yes..  I was. thats why its flapping..
smooth throttle nothing works.. only stabbing the pedal brings it to life..

N75 has been wired direct to ecu also to test, same fault continues.
when the car first came in it has 17705 fault code which I thought was the usual issue, but no codes have ever come up since, no matter what software I have flashed in, on different box, same box, etc.... the fault is constant.

If on real road test, or longer running up and down the box simulating road drive, sometimes, randomly the n75 will come to life.  Its coming to life remains until next ign cycle, and its dead again.

Only if I stab the acc pedal on off tap dancing stylee does it start up working again, pretty much on demand.

I've never ever seen anything behave like this..
If ecu's unhappy, and limp mode type event, no faults logging seems just weird.

Its behaving like the 17705 faultcode would do, but without throwing out that code.(or any for that matter)
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nyet
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« Reply #28 on: February 22, 2014, 10:03:34 AM »
Quote from: phila_dot on February 21, 2014, 12:52:30 PM
Hard to tell much from that log really.

There's no delay so the bit should set instantly when the desired PR is greater than one which it fails to do numerous times thoughout the log.

Ah. I see that now as well.
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Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
ibizacupra
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« Reply #29 on: February 24, 2014, 03:53:17 AM »
Anyone able to think of a potential cause for this weird behaviour?

thanks
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