Wideband Air/fuel Gauge, Quick Tuning Question

Discussion in 'Fox 5.0 Mustang Tech' started by Wicked50Chris, Jul 23, 2013.


  1. Wicked50Chris

    Wicked50Chris Member

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    Hey guys, just got a quick question. I soon will be getting a Quarterhorse chip for my A9P. I have an AEM wideband air/fuel gauge installed already. I heard that its good to use the wideband gauge to help with the tune, by connecting it to the EGR circuit. I don't have the chip yet, but i was thinking of getting ready. So to use the gauge in data logging, i need to run a wire from the gauge to the computer right? Is only 1 wire needed? 2? 3? I was planning on running the wire so i am ready. Is this all correct? I wont hook the wire(s) up yet, i just wanna get it ran if i even need to do it. Or if there is a better way of using my wideband for the data logging, please let me know. Thanks guys.
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  2. Noobz347

    Noobz347 Stangnet Facilities Maint Tech... Er... Janitor Admin Dude

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    Which version of the AEM do you have?

    --and--

    I'm not sure what you're talking about when you say, "connecting it to the EGR circuit".

    Are you talking about the RPM converter by chance?
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  3. Wicked50Chris

    Wicked50Chris Member

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    not actually sure which version i have. will have to take a look. i bought it new about 1 year ago. if that helps at all.

    And i am not sure about the EGR hookup either. I just heard people hook their wide band to the egr circuit, so they can log it.
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  4. Noobz347

    Noobz347 Stangnet Facilities Maint Tech... Er... Janitor Admin Dude

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    I can't think of a good reason why I would want to monitor the EGR. Maybe they're using the EGR input to the EEC to monitor lambda readings from the wideband in order to data log with the quarterhorse. :shrug:
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  5. Wicked50Chris

    Wicked50Chris Member

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    Its not to monitor the EGR, Its just to use the EGR signal to the computer, then i guess the wideband gets data logged.

    I know you need to disable the EGR with the chip first tho.
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  6. f8tlfiveo

    f8tlfiveo My wife likes my spool and blow-off valve.

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    Yes egr needs turned off to use it to data log. I had my 88 set up like that. If you can't get an answer on this site do a search on eectuning.org, yes I believe it is 1 wire from the gauge to the computer. I forget which pin is the egr on the computer though
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  7. f8tlfiveo

    f8tlfiveo My wife likes my spool and blow-off valve.

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    Correct
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  8. Wicked50Chris

    Wicked50Chris Member

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    Thanks bro, i just wanted to get ready, so when i get my chip, it will be an easy install.
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  9. f8tlfiveo

    f8tlfiveo My wife likes my spool and blow-off valve.

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    You prob want to wait to hook up the wire until the egr is disabled in the tune. Have you been on the website doing research yet?
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  10. Wicked50Chris

    Wicked50Chris Member

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    yea i figured that. I have been doing a little research so far. Still have a lot to learn...
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  11. Noobz347

    Noobz347 Stangnet Facilities Maint Tech... Er... Janitor Admin Dude

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    Lol... Wait until you start tuning. :eek:
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  12. f8tlfiveo

    f8tlfiveo My wife likes my spool and blow-off valve.

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    I bought a book by Greg banish that helps to clear some things up about tuning. It can be very confusing that's why I had someone else do my tune, until I have time to figure out the ins and outs of it.
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  13. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

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    the egr signal wire is based off the same 0 - 5 volt range as the wideband sensor. the egr just needs turned off in the tune, your tuner should be able to handle that
    #13
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  14. f8tlfiveo

    f8tlfiveo My wife likes my spool and blow-off valve.

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  15. Wicked50Chris

    Wicked50Chris Member

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    Thanks bro. Great writeup...
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