log boost with JDM MAP sensor (updated instructions)
#78
Evolved Member
iTrader: (6)
Well, Today I got a CEL on my Evo IX with the JDM MAP sensor. I am using the updated instructions. I was driving on surface streets and was cruising in 4th or 5th gear when I noticed the CEL come on.
The code is P0401, insufficient EGR flow. The car ran normally after the code was triggered. I did not notice any difference in driveability. I cleared the code with my reader. I will update thi thread if it happens again.
The code is P0401, insufficient EGR flow. The car ran normally after the code was triggered. I did not notice any difference in driveability. I cleared the code with my reader. I will update thi thread if it happens again.
#79
Well, Today I got a CEL on my Evo IX with the JDM MAP sensor. I am using the updated instructions. I was driving on surface streets and was cruising in 4th or 5th gear when I noticed the CEL come on.
The code is P0401, insufficient EGR flow. The car ran normally after the code was triggered. I did not notice any difference in driveability. I cleared the code with my reader. I will update thi thread if it happens again.
The code is P0401, insufficient EGR flow. The car ran normally after the code was triggered. I did not notice any difference in driveability. I cleared the code with my reader. I will update thi thread if it happens again.
#85
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Join Date: Jun 2006
Location: Taftville, CT
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Yep, the JDM MAP sensor does seem to be triggering the P0401 on some people's Evo 9s. I have been digging deeper into the ROM code. I've found some overlooked settings that are related to MAP sensor fault checks that I intend to introduce into the Evo 9 instructions, but I am still on the hunt for the exact routine that is used to perform the EGR performance check.
#90
Evolved Member
iTrader: (6)
I looked in the xml file and I could not find the code for the ECU Peripehry2 defined table. I have noticed that if you define the table by right clicking the Rom in Ecuflash there is no corresponding code that appears in the xml file being used. If you insert the code in the xml file, however, then you will see the table when you open the Rom in Ecuflash. I wonder why that happens?