The DTC Disable thread (P1235, P1241, P1238, etc)
#1
The DTC Disable thread (P1235, P1241, P1238, etc)
So after a brainwave I looked and found the counters pertaining to DTC discovery.
You know - how long does the ECU have to detect the condition for before pooping out a DTC?
Anyways here is my list so far:
53040010:
52680015 -> 52680022:
apparently P0247 doesn't work correctly for USDM models, I will look into this if there is enough interest
52360016:
52360018:
52690019 -> 52690021:
apparently P0247 doesn't work correctly for USDM models, I will look into this if there is enough interest
53040007:
55570005 -> 55570006:
55590006:
55590007:
55580005 -> 55580006:
53050009:
IF THE BEFORE NUMBERS, ie 0x0384 or 0x03E8 or 0x26 etc, DON'T MATCH - then STOP and ASK!!!!!
OK - you need todo 1235/1233/1234 all together, otherwise you will still get codes if you JUST disable 1235
You know - how long does the ECU have to detect the condition for before pooping out a DTC?
Anyways here is my list so far:
53040010:
Code:
<table name="DTC P1238 Disable 0x0384 -> 0xFFFF" category="Misc" address="631ea" type="1D" scaling="Hex16"/> <table name="DTC P1241 Disable 0x03E8 -> 0xFFFF" category="Misc" address="631e0" type="1D" scaling="Hex16"/> <table name="DTC P1235 Disable 0x0026 -> 0xFFFF" category="Misc" address="549c0" type="1D" scaling="Hex16"/> <table name="DTC P1233 Disable 0x0028 -> 0xFFFF" category="Misc" address="549bc" type="1D" scaling="Hex16"/> <table name="DTC P1234 Disable 0x0028 -> 0xFFFF" category="Misc" address="549be" type="1D" scaling="Hex16"/> <table name="DTC P0247 Disable 0xF99F -> 0xF19F" category="Misc" address="92ba6" type="1D" scaling="Hex16"/>
Code:
<table name="DTC P1238 Disable 0x0384 -> 0xFFFF" category="Misc" address="631ae" type="1D" scaling="Hex16"/> <table name="DTC P1241 Disable 0x03E8 -> 0xFFFF" category="Misc" address="631a4" type="1D" scaling="Hex16"/> <table name="DTC P1235 Disable 0x0026 -> 0xFFFF" category="Misc" address="549b2" type="1D" scaling="Hex16"/> <table name="DTC P1233 Disable 0x0028 -> 0xFFFF" category="Misc" address="549ae" type="1D" scaling="Hex16"/> <table name="DTC P1234 Disable 0x0028 -> 0xFFFF" category="Misc" address="549b0" type="1D" scaling="Hex16"/> <table name="DTC P0247 Disable 0xF9DF -> 0xF1DF" category="Misc" address="9356a" type="1D" scaling="Hex16"/> <table name="DTC P0139 Disable 0x1 -> 0x0" category="Misc" address="503b2" type="1D" scaling="Hex8"/> <table name="DTC P0140 Disable 1500 -> 8000" category="Misc" address="539c0" type="1D" scaling="RPMStatLimit"/>
52360016:
Code:
<table name="DTC P1238 Disable 0x0384 -> 0xFFFF" category="Misc" address="62b9a" type="1D" scaling="Hex16"/> <table name="DTC P1241 Disable 0x03E8 -> 0xFFFF" category="Misc" address="62b90" type="1D" scaling="Hex16"/> <table name="DTC P1235 Disable 0x0026 -> 0xFFFF" category="Misc" address="549a8" type="1D" scaling="Hex16"/> <table name="DTC P1233 Disable 0x0028 -> 0xFFFF" category="Misc" address="549a4" type="1D" scaling="Hex16"/> <table name="DTC P1234 Disable 0x0028 -> 0xFFFF" category="Misc" address="549a6" type="1D" scaling="Hex16"/>
Code:
<table name="DTC P1238 Disable 0x0384 -> 0xFFFF" category="Misc" address="631b2" type="1D" scaling="Hex16"/> <table name="DTC P1241 Disable 0x03E8 -> 0xFFFF" category="Misc" address="631a8" type="1D" scaling="Hex16"/> <table name="DTC P1235 Disable 0x0026 -> 0xFFFF" category="Misc" address="549b6" type="1D" scaling="Hex16"/> <table name="DTC P1233 Disable 0x0028 -> 0xFFFF" category="Misc" address="549b2" type="1D" scaling="Hex16"/> <table name="DTC P1234 Disable 0x0028 -> 0xFFFF" category="Misc" address="549b4" type="1D" scaling="Hex16"/>
Code:
<table name="DTC P1238 Disable 0x0384 -> 0xFFFF" category="Misc" address="631ae" type="1D" scaling="Hex16"/> <table name="DTC P1241 Disable 0x03E8 -> 0xFFFF" category="Misc" address="631a4" type="1D" scaling="Hex16"/> <table name="DTC P1235 Disable 0x0026 -> 0xFFFF" category="Misc" address="549b2" type="1D" scaling="Hex16"/> <table name="DTC P1233 Disable 0x0028 -> 0xFFFF" category="Misc" address="549ae" type="1D" scaling="Hex16"/> <table name="DTC P1234 Disable 0x0028 -> 0xFFFF" category="Misc" address="549b0" type="1D" scaling="Hex16"/> <table name="DTC P0247 Disable 0xF9DF -> 0xF1DF" category="Misc" address="93556" type="1D" scaling="Hex16"/> <table name="DTC P0139 Disable 0x1 -> 0x0" category="Misc" address="503b2" type="1D" scaling="Hex8"/> <table name="DTC P0140 Disable 1500 -> 8000" category="Misc" address="539c0" type="1D" scaling="RPMStatLimit"/>
53040007:
Code:
<table name="DTC P1238 Disable 0x0384 -> 0xFFFF" category="Misc" address="631b2" type="1D" scaling="Hex16"/> <table name="DTC P1241 Disable 0x03E8 -> 0xFFFF" category="Misc" address="631a8" type="1D" scaling="Hex16"/> <table name="DTC P1235 Disable 0x0026 -> 0xFFFF" category="Misc" address="549bc" type="1D" scaling="Hex16"/> <table name="DTC P1233 Disable 0x0028 -> 0xFFFF" category="Misc" address="549b8" type="1D" scaling="Hex16"/> <table name="DTC P1234 Disable 0x0028 -> 0xFFFF" category="Misc" address="549ba" type="1D" scaling="Hex16"/>
Code:
<table name="DTC P1238 Disable 0x0384 -> 0xFFFF" category="Misc" address="633e8" type="1D" scaling="Hex16"/> <table name="DTC P1241 Disable 0x03E8 -> 0xFFFF" category="Misc" address="633de" type="1D" scaling="Hex16"/> <table name="DTC P1235 Disable 0x0026 -> 0xFFFF" category="Misc" address="549f8" type="1D" scaling="Hex16"/> <table name="DTC P1233 Disable 0x0028 -> 0xFFFF" category="Misc" address="549f4" type="1D" scaling="Hex16"/> <table name="DTC P1234 Disable 0x0028 -> 0xFFFF" category="Misc" address="549f6" type="1D" scaling="Hex16"/> <table name="DTC P0140 Disable 1500 -> 8000" category="Misc" address="539c6" type="1D" scaling="RPMStatLimit"/>
Code:
<table name="Enable catalytic monitoring (P0420)" category="Misc" address="503BC" type="1D" scaling="Hex8"/>
Code:
<table name="DTC P1238 Disable 0x0384 -> 0xFFFF" category="Misc" address="633e8" type="1D" scaling="Hex16"/> <table name="DTC P1241 Disable 0x03E8 -> 0xFFFF" category="Misc" address="633de" type="1D" scaling="Hex16"/> <table name="DTC P1235 Disable 0x0026 -> 0xFFFF" category="Misc" address="549f8" type="1D" scaling="Hex16"/> <table name="DTC P1233 Disable 0x0028 -> 0xFFFF" category="Misc" address="549f4" type="1D" scaling="Hex16"/> <table name="DTC P1234 Disable 0x0028 -> 0xFFFF" category="Misc" address="549f6" type="1D" scaling="Hex16"/>
Code:
<table name="DTC P1238 Disable 0x0384 -> 0xFFFF" category="Misc" address="633e8" type="1D" scaling="Hex16"/> <table name="DTC P1241 Disable 0x03E8 -> 0xFFFF" category="Misc" address="633de" type="1D" scaling="Hex16"/> <table name="DTC P1235 Disable 0x0026 -> 0xFFFF" category="Misc" address="549f8" type="1D" scaling="Hex16"/> <table name="DTC P1233 Disable 0x0028 -> 0xFFFF" category="Misc" address="549f4" type="1D" scaling="Hex16"/> <table name="DTC P1234 Disable 0x0028 -> 0xFFFF" category="Misc" address="549f6" type="1D" scaling="Hex16"/>
Code:
<table name="DTC P1238 Disable 0x0384 -> 0xFFFF" category="Misc" address="631ea" type="1D" scaling="Hex16"/> <table name="DTC P1241 Disable 0x03E8 -> 0xFFFF" category="Misc" address="631e0" type="1D" scaling="Hex16"/> <table name="DTC P1235 Disable 0x0026 -> 0xFFFF" category="Misc" address="549c0" type="1D" scaling="Hex16"/> <table name="DTC P1233 Disable 0x0028 -> 0xFFFF" category="Misc" address="549bc" type="1D" scaling="Hex16"/> <table name="DTC P1234 Disable 0x0028 -> 0xFFFF" category="Misc" address="549be" type="1D" scaling="Hex16"/>
OK - you need todo 1235/1233/1234 all together, otherwise you will still get codes if you JUST disable 1235
![Smilie](https://www.evolutionm.net/forums/images/smilies/smile.gif)
Last edited by tephra; Jun 8, 2011 at 06:52 AM.
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MV auto (Feb 16, 2019)
#6
So after a brainwave I looked and found the counters pertaining to DTC discovery.
You know - how long does the ECU have to detect the condition for before pooping out a DTC?
Anyways here is my list so far:
53040010:
53680015 -> 52680020:
IF THE BEFORE NUMBERS, ie 0x0384 or 0x03E8 or 0x26, DON'T MATCH - then STOP and ASK!!!!!
Now these havn't really been tested, so it would be good to get some people to test before newbies (sorry but some are!) try this stuff![Smilie](https://www.evolutionm.net/forums/images/smilies/smile.gif)
You know - how long does the ECU have to detect the condition for before pooping out a DTC?
Anyways here is my list so far:
53040010:
Code:
<table name="DTC P1238 Disable 0x0384 -> 0xFFFF" category="Misc" address="631ea" type="1D" scaling="Hex16"/> <table name="DTC P1241 Disable 0x03E8 -> 0xFFFF" category="Misc" address="631e0" type="1D" scaling="Hex16"/> <table name="DTC P1235 Disable 0x0026 -> 0xFFFF" category="Misc" address="549c0" type="1D" scaling="Hex16"/>
Code:
<table name="DTC P1238 Disable 0x0384 -> 0xFFFF" category="Misc" address="631ae" type="1D" scaling="Hex16"/> <table name="DTC P1241 Disable 0x03E8 -> 0xFFFF" category="Misc" address="631a4" type="1D" scaling="Hex16"/> <table name="DTC P1235 Disable 0x0026 -> 0xFFFF" category="Misc" address="549b2" type="1D" scaling="Hex16"/>
Now these havn't really been tested, so it would be good to get some people to test before newbies (sorry but some are!) try this stuff
![Smilie](https://www.evolutionm.net/forums/images/smilies/smile.gif)
If I was misleading the thread to any point please forgive my newbieness
![Frown](https://www.evolutionm.net/forums/images/smilies/frown.gif)
Think you can share the addresses for 53040007?
I'll triple check before posting
![Smilie](https://www.evolutionm.net/forums/images/smilies/smile.gif)
#7
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Code:
<table name="DTC P1238 Disable 0x0384 -> 0xFFFF" category="Misc" address="631b2" type="1D" scaling="Hex16"/> <table name="DTC P1241 Disable 0x03E8 -> 0xFFFF" category="Misc" address="631a8" type="1D" scaling="Hex16"/> <table name="DTC P1235 Disable 0x0026 -> 0xFFFF" category="Misc" address="549bc" type="1D" scaling="Hex16"/>
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#15
Evolved Member
iTrader: (6)
The way I understood things was that P1235 indicates a boost spike, right? It detects more air coming in at a certain RPM and TPS than expected, and initiates limp mode to prevent that from causing damage. I've been having issues with this for a while now where I was hitting over 25.5psi at 3.5k rpm, so a fix seems like a blessing... but...
Isn't it still a good safety net? And can't the conditions under which P1235 is issued be tuned for higher boost/bigger turbos by tuning the Airflow Check tables?
Am I understanding P1235 correctly? Under what circumstances would you NOT want to disable this code? Sorry for being the noob
Isn't it still a good safety net? And can't the conditions under which P1235 is issued be tuned for higher boost/bigger turbos by tuning the Airflow Check tables?
Am I understanding P1235 correctly? Under what circumstances would you NOT want to disable this code? Sorry for being the noob
![Smilie](https://www.evolutionm.net/forums/images/smilies/smile.gif)