Wot afr
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
The 1227165 ECM has the following inputs:
Pin D8 - ADC Channel 0, MAP2
Pin A6 - ADC Channel 1, Ignition voltage
Pin D7 - ADC Channel 2, O2 sensor voltage
Pin C11 - ADC Channel 3, MAP
Pin C10 - ADC Channel 4, Coolant sensor
Pin C13 - ADC Channel 5, TPS voltage
Pin B2 - ADC Channel 6, Fuel pump voltage
Pin A9 - ADC Channel 7, ALDL pin B voltage
Pin C12 - ADC Channel 8, MAT Temp
Pin B11 - ADC Channel 9, ESC
Pin B12 - ADC Channel 10, MAF voltage
You will probably have to do some math to convert what the ECM thinks it's seeing to something that makes sense (like AFR). My car does not use the MAP inputs, so those are obvious choices. I have heard of people using the MAT input because it's only used for EGR enable. One advantage of using this one is that the wiring is already in the engine compartment.
I have a Powerdex AFX and the output is 0 to 5 volts, corresponding to 9.0 to 16.0 AFR. Fortunately the output is linear so the math is very simple.
Pin D8 - ADC Channel 0, MAP2
Pin A6 - ADC Channel 1, Ignition voltage
Pin D7 - ADC Channel 2, O2 sensor voltage
Pin C11 - ADC Channel 3, MAP
Pin C10 - ADC Channel 4, Coolant sensor
Pin C13 - ADC Channel 5, TPS voltage
Pin B2 - ADC Channel 6, Fuel pump voltage
Pin A9 - ADC Channel 7, ALDL pin B voltage
Pin C12 - ADC Channel 8, MAT Temp
Pin B11 - ADC Channel 9, ESC
Pin B12 - ADC Channel 10, MAF voltage
You will probably have to do some math to convert what the ECM thinks it's seeing to something that makes sense (like AFR). My car does not use the MAP inputs, so those are obvious choices. I have heard of people using the MAT input because it's only used for EGR enable. One advantage of using this one is that the wiring is already in the engine compartment.
I have a Powerdex AFX and the output is 0 to 5 volts, corresponding to 9.0 to 16.0 AFR. Fortunately the output is linear so the math is very simple.
Drifting
Joined: Aug 2010
Posts: 1,704
Likes: 8
guys the Innovate Lc-1 has a gauge output for the dash gauge,a serial output TO USB that allow you to use the bundle software Logworks,more there's an O2 output to use your wideband heated sensor as your ECM o2sensor.i've used for a while my wideband as ON car o2 sensor. i've used the stock o2 sensor pin on ECM and disconnected the stock narrowband .As for datalogging AFR you can simply use Logworks that comes with LC-1
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Last edited by tunedport85inject; Apr 30, 2014 at 05:14 AM.
Racer
Joined: Aug 2009
Posts: 337
Likes: 6
From: Kanata ON
Yes that does seem too rich. Not sure how to modify it on the 165, but my tuner told me he wanted 13:1.
Some people say low 12s, high 12s, low 13s, mid 13s.
I have been through them all. I think I can feel a little more power with 13.5:1, but I fear it might be too lean and could possibly damage my engine over time, so I'm shooting for 13:1.
Some people say low 12s, high 12s, low 13s, mid 13s.
I have been through them all. I think I can feel a little more power with 13.5:1, but I fear it might be too lean and could possibly damage my engine over time, so I'm shooting for 13:1.
Target AFR is not the same as actual AFR. how are you measuring actual AFR? do you have a WB O2 sensor? the target AFR rarely matches the actual. Most tables create a much richer target than what is actual. but i agree with *****, shoot for 12.5 for WOT AFR. the 2 tables that were mentioned create the "commanded PE AFR", via a calculation. if you want to get serious in tuning the WOT AFR, you need a WB.
*Two fully programmable linear analog outputs to connect to analog gauges, dyno computers, ECUs, piggyback controllers, and other devices with analog inputs. Analog Output #1 (Yellow) is configured as 0 volt = 7.35 AFR and 5 volts = 22.39 AFR; Analog Output #2 (Brown) 1.1 volt = 14 AFR and .1 volt = 15 AFR. With the provided LM Programmer software these analog outputs may also be configured by the user.
Bottom line is the analog 2 output is setup to emulate a narrowband sensor and can be directly connected to the narrowband input of the PCM.
Racer
Joined: Apr 2013
Posts: 435
Likes: 4
From: Guilford NY
The 1227165 ECM has the following inputs:
Pin D8 - ADC Channel 0, MAP2
Pin A6 - ADC Channel 1, Ignition voltage
Pin D7 - ADC Channel 2, O2 sensor voltage
Pin C11 - ADC Channel 3, MAP
Pin C10 - ADC Channel 4, Coolant sensor
Pin C13 - ADC Channel 5, TPS voltage
Pin B2 - ADC Channel 6, Fuel pump voltage
Pin A9 - ADC Channel 7, ALDL pin B voltage
Pin C12 - ADC Channel 8, MAT Temp
Pin B11 - ADC Channel 9, ESC
Pin B12 - ADC Channel 10, MAF voltage
You will probably have to do some math to convert what the ECM thinks it's seeing to something that makes sense (like AFR). My car does not use the MAP inputs, so those are obvious choices. I have heard of people using the MAT input because it's only used for EGR enable. One advantage of using this one is that the wiring is already in the engine compartment.
I have a Powerdex AFX and the output is 0 to 5 volts, corresponding to 9.0 to 16.0 AFR. Fortunately the output is linear so the math is very simple.
Pin D8 - ADC Channel 0, MAP2
Pin A6 - ADC Channel 1, Ignition voltage
Pin D7 - ADC Channel 2, O2 sensor voltage
Pin C11 - ADC Channel 3, MAP
Pin C10 - ADC Channel 4, Coolant sensor
Pin C13 - ADC Channel 5, TPS voltage
Pin B2 - ADC Channel 6, Fuel pump voltage
Pin A9 - ADC Channel 7, ALDL pin B voltage
Pin C12 - ADC Channel 8, MAT Temp
Pin B11 - ADC Channel 9, ESC
Pin B12 - ADC Channel 10, MAF voltage
You will probably have to do some math to convert what the ECM thinks it's seeing to something that makes sense (like AFR). My car does not use the MAP inputs, so those are obvious choices. I have heard of people using the MAT input because it's only used for EGR enable. One advantage of using this one is that the wiring is already in the engine compartment.
I have a Powerdex AFX and the output is 0 to 5 volts, corresponding to 9.0 to 16.0 AFR. Fortunately the output is linear so the math is very simple.
Last edited by MikeT 90 C4sixer; May 7, 2014 at 08:56 PM.
Advanced
Joined: Mar 2014
Posts: 85
Likes: 0
with my car i noticed when the car below peak to torque peak torque rpm it likes 12.5-12.3 afr. up top like after 4.5-4.8 to red line it made more power with below 12.0 afr. all cars are different and intake/exhaust componants make a difference. if ur car makes more power with 11.0 afr then 12.0 afr then thats what u should be at. just make sure ur using a wb to adjust afr and limit the knock to 1-3 counts.
