AEM wideband sensor for EEC-IV

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wwhite
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AEM wideband sensor for EEC-IV

Unread post by wwhite »

I finally picked up a wideband AEM sensor.
The instructions state that position 4 (P4) can output emulated narrow band.
I know it's not ideal, and for daily driver any one done this.

Will or does this work OK for EEC-IV stock PCM?

And, on another note, I know people tie into the EGR sensor input for AEM sensor.
My bin has the following A/D channels:

Code: Select all

3cfd: 00,08,01            struct    0, ITOT                                        # Transmission Oil temperature, counts.
3d00: 01,0e,01            struct    1, IVCAL                                       # A to D conversion of the calibration input voltage, counts.
3d03: 02,0a,01            struct    2, IIVPWR                                      # Ignition voltage, A/D counts.
3d06: 03,0c,01            struct    3, IOCC                                        # Output Circuit Check (OCC) A/D input level.
3d09: 05,44,03            struct    5, IETVOCM                                     # A to D conversion  of  the  ETV  over current  monitor  voltage, counts
3d0c: 07,1c,01            struct    7, ITP                                         # Throttle position value from A/D conversion, counts.
3d0f: 08,10,01            struct    8, IECT                                        # A/D conversion of ECT sensor, counts.
3d12: 09,12,01            struct    9, IACT                                        # A/D conversion of ACT sensor input, counts.
3d15: 0a,18,01            struct    a, INDS                                        # Input Neutral/drive switch, counts.
3d18: 0b,1a,01            struct    b, IEGO1                                       # Exhaust Gas Oxygen sensor 1
3d1b: 0c,14,01            struct    c, IEGR                                        # A/D conversion of EGR sensor input, EVP or EPT sensor, counts. 
As you can see, there are 11 channels. I believe 13 can be supported.
With some clever codding, would I be able to add channel 4 or 6 to the code, and then wire up the AEM sensor to the appropriate analog input?
Any one tried that?
I am aware that a lot of code would have to be moved as there is no free space before or after the above code, and where an assembler would be nice to have.
decipha
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Re: AEM wideband sensor for EEC-IV

Unread post by decipha »

yes, nope

nope nope and nope
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Re: AEM wideband sensor for EEC-IV

Unread post by jsa »

Yes the channels can be added to code.

If uP pins are connected to J1 pins then it is easy.
Otherwise input circuitry needs to configured like voltage in channels.
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