Notices
ECU Flash

94171715 IAT read 280* plus F

Thread Tools
 
Search this Thread
 
Old Nov 8, 2016, 11:21 AM
  #1  
Newbie
Thread Starter
 
Jkorny169's Avatar
 
Join Date: Aug 2012
Location: Platteville, Wi
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Question 94171715 IAT read 280* plus F

I'm working on an 04 Evo 8 (9417015) converted to Tephra 94171715. The car has a gm IAT sensor wired: to the fuel temp sensor (pin 77) (pin removed and new pin installed) and sensor grounded to transmission. The GM IAT is installed in the bend before the throttle body. The fuel temp sensor is still connected to the pigtail.

The issue is the car reads 280-310ish degrees F on evo scan.

I've attached the evoscan function and request id, as well as the current ecuflash settings.



Old Nov 12, 2016, 08:40 AM
  #2  
EvoM Guru
iTrader: (7)
 
CDrinkH2O's Avatar
 
Join Date: Nov 2006
Location: San Francisco
Posts: 1,142
Received 152 Likes on 116 Posts
Change the X-axis scaling for the SD MAT Scaling for IAT Scaling Table from TempScaleFuel to TempScale.

Last edited by CDrinkH2O; Nov 12, 2016 at 09:06 AM.
Old Jan 11, 2017, 08:10 AM
  #3  
Evolving Member
 
redSLed's Avatar
 
Join Date: Feb 2010
Location: Bethlehem, PA
Posts: 139
Received 4 Likes on 4 Posts
Does this work for anybody? I've got the exact settings as above in this thread, using tempscale vs tempscale fuel, same logging formula at 09 request, convert iat to mat at 0E and I'm logging 267 deg F using 1.8*x+32 and air temp is logging 55 deg F which is 20 deg warmer than coolant temp. Using 0x03 for convert iat to mat, I'm logging 10 degrees UNDER my coolant temp of 37 degrees. I'm about ready to give up. There's got to be something off in the XML coding in my Phenem 94171715 and 94170715 V7 roms...OR my scaling is still off majorly...OR I'm logging the wrong MUT and/or formula. I've seen half a dozen or so posts where people report back that they've FINALLY logged correct IAT, or fuel temp, etc. after tweaking scaling but neglect to share their results or exact method of resolution!

Last edited by redSLed; Jan 11, 2017 at 12:34 PM.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
audiofan
ECU Flash
7
Dec 25, 2015 02:55 PM
TheBigD
ECU Flash
4
Apr 14, 2014 01:09 PM
06ravenmr
Evo Engine / Turbo / Drivetrain
8
Nov 24, 2009 05:31 AM
trinydex
For Sale - Wheels / Tires
8
Sep 16, 2005 09:16 PM



Quick Reply: 94171715 IAT read 280* plus F



All times are GMT -7. The time now is 04:43 AM.