|
Tracking / Autocross / HPDE / Drifting What these cars were built for! |
|
Thread Tools | Search this Thread |
01-12-2020, 03:07 PM | #1 |
Member
Join Date: Dec 2019
Drives: 2015 Scion FRS
Location: CA
Posts: 34
Thanks: 9
Thanked 6 Times in 4 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
Can anyone diagnose why I went into limp mode here?
I also got a tire puncture on the same lap, not sure if the two are related. I have a 2015 auto and the code thrown was U0073. Here's the lap:
The limp happens at about 1:47. The tire was punctured by a rather large piece of metal, you can hear it in the later half. By the way, this happened at Chuckwalla, my very first trackday ruined by this rather early, I had one session before this, and this was the first lap of the second session. Everyone was very helpful, they tried to find a tire for me but couldn't, so I ended up having to drive on the spare donut crawling on the highway for an hour and get a new tire. They also are giving me a free trackday, so not all is lost and I do want to go back, this time with a new set of wheels and tires and a full size spare or two. |
01-12-2020, 04:22 PM | #2 |
-
Join Date: Nov 2012
Drives: '13 FRS - STX
Location: SF Bay Area
Posts: 10,365
Thanks: 13,733
Thanked 9,479 Times in 4,998 Posts
Mentioned: 94 Post(s)
Tagged: 3 Thread(s)
|
Were you running any data logging and did the car eventually take itself out of limp mode when you reset/cleared codes or is the code persistent?
|
01-12-2020, 04:47 PM | #3 |
Member
Join Date: Dec 2019
Drives: 2015 Scion FRS
Location: CA
Posts: 34
Thanks: 9
Thanked 6 Times in 4 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
I was running torque app, it found the same code other scanners did, the U0073, and it is not persistent, we cleared it and everything seems fine.
|
01-12-2020, 04:54 PM | #4 |
Senior Member
Join Date: May 2014
Drives: 2017 BRZ
Location: Chicago
Posts: 3,285
Thanks: 1,256
Thanked 2,928 Times in 1,714 Posts
Mentioned: 58 Post(s)
Tagged: 0 Thread(s)
|
OBD will trip limp mode sometimes if there's a bad connection to a device plugged into the circuit that's cycling on/off or connecting/disconnecting repeatedly. I ran into this with the 86Nanny I used to have; the connectors were faulty in that case (easy fix once it was sorted out.)
__________________
Second chance build... or whatever it is.
|
The Following User Says Thank You to cjd For This Useful Post: | strat61caster (01-12-2020) |
01-12-2020, 04:54 PM | #5 | |
-
Join Date: Nov 2012
Drives: '13 FRS - STX
Location: SF Bay Area
Posts: 10,365
Thanks: 13,733
Thanked 9,479 Times in 4,998 Posts
Mentioned: 94 Post(s)
Tagged: 3 Thread(s)
|
Quote:
https://www.ft86club.com/forums/showthread.php?t=61958 Everything else seems fine, hope your next track day goes better! |
|
01-12-2020, 04:58 PM | #6 |
Member
Join Date: Dec 2019
Drives: 2015 Scion FRS
Location: CA
Posts: 34
Thanks: 9
Thanked 6 Times in 4 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
That makes a lot of sense, thanks.
To anyone wondering, apparently from that thread linked, the problem is running the Torque app while the car is starting, not the adapter itself. |
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Limp mode | GTBOY | Issues | Warranty | Recalls / TSB | 4 | 06-07-2018 12:58 PM |
ABS, CEL, and TC lights on, limp mode | drz400dude | Issues | Warranty | Recalls / TSB | 12 | 11-12-2017 03:09 PM |
Valet mode / limp mode? | radroach | Software Tuning | 1 | 09-18-2017 11:34 AM |
How to limp mode.. | vichiball | Software Tuning | 5 | 07-12-2016 01:18 PM |
Car in Limp mode... No CEL | Sportsguy83 | Issues | Warranty | Recalls / TSB | 60 | 08-20-2014 03:35 AM |