Request IDs
Request IDs
***Post in progress***
Code:
06 Ignition Timing x-20 Deg BTDC 07 Coolant Temperature (-1.468*x)+139.74 ? Deg F 0C Fuel Trim Low x ? 0D Fuel Trim Mid x ? 0E Fuel Trim High x ? 13 Front O2 Sensor x*0.0195 ? 14 Battery Voltage x*0.0733 Volts 15 Atmospheric Pressure x*0.0725 ? 16 Idle Speed Control x Steps 17 Throttle Position x*100/255 % 1A Air Flow Sensor x*6.29 ? 1C Engine Load x*0.625 ? 1F Rear O2 Sensor x*0.0195 ? 20 Crankshaft Sensor #2 x*7.8 ? 21 Engine Speed x*31.25 ? 24 Target Idle x*7.8 RPM 26 Knock Count x ? 27 Octane # x ? 29 Fuel Inj Pulse Width x*0.256 ms 2F Speed x*1.242742384 MPH 32 AFR map 128*14.7/x AFR 33 Ignition Timing map x-20 Deg BTDC (before air temp, baro, EGR, ect. adjustments) 38 Manifold Abs Pressure x*0.19343 ? 3A Intake Air Temperature (-0.58*x)+90.96 ? ? 6A knock_ADC_PROCESSED_MUT x ? 6B knockbase x ? 6D knock_change x ? 6E knockdynam x ? 79 Injector Latecy x ? 86 Waste Gate Duty Cycle x*100/255 %
Last edited by AutoXer; Sep 14, 2008 at 08:50 AM.
You got the fuel trims but have them labeled incorrectly. They are all long term values.
OC - Fuel Trim Low
OD - Fuel Trim Mid
OE - Fuel Trim High
Each trim is updated at different load intervels. The low is updated mostly at idle. The mid is updated at normal low load driving and even some highway cruising. The high is updated at part throttle acceleration but sill in closed loop. You have one short term fuel trim. It is basically a correction factor that the ecu applies to the final IPW to achieve stoich. It is only active during closed loop conditions. This short term value is used to update the long term values and it does so on timer. Theirfore it takes a few seconds of the short term trim to read high before it makes the long term high. This is how the ecu automatically calibrates itself to the different weather conditions.
All the fuel trims are values in % and they serve as multipliers to the final calculation. Front O2 is in volts. Atmospheric pressure is in Bar. Throttle position is in %. Airflow is in Hz. Load is in % in ecuflash. Rear O2 is in volts. Engine speed is in RPM. Target idle is in RPM. Knock is in counts. Octane number is in %. Injector pulse width is in ms (milliseconds). AFR map is an A/F multiplier value. MAP is in bar. Air and coolant temps are in whatever units you choose.
OC - Fuel Trim Low
OD - Fuel Trim Mid
OE - Fuel Trim High
Each trim is updated at different load intervels. The low is updated mostly at idle. The mid is updated at normal low load driving and even some highway cruising. The high is updated at part throttle acceleration but sill in closed loop. You have one short term fuel trim. It is basically a correction factor that the ecu applies to the final IPW to achieve stoich. It is only active during closed loop conditions. This short term value is used to update the long term values and it does so on timer. Theirfore it takes a few seconds of the short term trim to read high before it makes the long term high. This is how the ecu automatically calibrates itself to the different weather conditions.
All the fuel trims are values in % and they serve as multipliers to the final calculation. Front O2 is in volts. Atmospheric pressure is in Bar. Throttle position is in %. Airflow is in Hz. Load is in % in ecuflash. Rear O2 is in volts. Engine speed is in RPM. Target idle is in RPM. Knock is in counts. Octane number is in %. Injector pulse width is in ms (milliseconds). AFR map is an A/F multiplier value. MAP is in bar. Air and coolant temps are in whatever units you choose.
Last edited by dan l; Oct 7, 2006 at 08:57 AM.
Originally Posted by dan l
You got the fuel trims but have them labeled incorrectly. They are all long term values.
OC - Fuel Trim Low
OD - Fuel Trim Mid
OE - Fuel Trim High
OC - Fuel Trim Low
OD - Fuel Trim Mid
OE - Fuel Trim High
My plan is to make the original post contain only verified information. If someone wants to be guttsy and verify the following, I'll put them into the original post.
Taken from: http://mmcdlogger.sourceforge.net/
F5 Canister purge
F6 Turn on fuel pump
F7 Disable injector #6 -Doesn't really apply to the Evo
F8 Disable injector #5
F9 Disable injector #4
FA Disable injector #3
FB Disable injector #2
FC Disable injector #1
Anybody know why you'd want to disable an injector? And what's a canister?
There are more commands that can be sent. Anybody want to find them trial-by-error?
Taken from: http://mmcdlogger.sourceforge.net/
F5 Canister purge
F6 Turn on fuel pump
F7 Disable injector #6 -Doesn't really apply to the Evo
F8 Disable injector #5
F9 Disable injector #4
FA Disable injector #3
FB Disable injector #2
FC Disable injector #1
Anybody know why you'd want to disable an injector? And what's a canister?
There are more commands that can be sent. Anybody want to find them trial-by-error?
These are from the DSM logger site as well. If someone will verfy them, I'll add them to the original post.
Code:
Oxygen Feedback Trim 0x0F 0.78x % Air Volume 0x2C x ISC Steps 0x16 x EGR Temperature 0x12 -2.7x + 597.7 deg F
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Joined: May 2006
Posts: 2,399
Likes: 6
From: UK
You should get on the disassembly on Aktive Matrix. The MUT table is there in the disassembly and loads of variables and cross references are defined.
There is also 16 bit logging of load and RPM going on at 400 samples per second.
There is also 16 bit logging of load and RPM going on at 400 samples per second.
I'm curious how many steps a bone stock car runs at idle.
Also, there is likely a RequestID that will set the stepper motor to its center position. I've read that it's possible to do it via the MUTIII. This would make setting the BISS an easy task. I don't have a clue what Request # it is.
Almost forgot.... with my BISS all the way in... my step count is 52.... FWIW.
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BTW, the entire list of currently known and useful MUT items is on Aktivematrix except for actuator and solenoid bitmaps, and test mode requests, as We havent figured them all out yet.
Its not buried.. http://www.aktivematrix.com/forum/viewtopic.php?t=184
I forgot to sticky it... As new ones are found, thats the first place they will turn up after their discussed in the disassembly threads.
I forgot to sticky it... As new ones are found, thats the first place they will turn up after their discussed in the disassembly threads.
Last edited by MalibuJack; Mar 26, 2007 at 11:00 AM.
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