Maus bulids a Racecar because Racecar Build Thread - Page 16
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This is a discussion on Maus bulids a Racecar because Racecar Build Thread within the Builds forums, part of the Tech & Modifying & General Repairs category; Originally Posted by maus So I've been noticing abnormal AF learnings the last week or so. Today it hit a ...

  1. #226
    Registered User Heide264's Avatar
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    Quote Originally Posted by maus View Post
    So I've been noticing abnormal AF learnings the last week or so. Today it hit a high of -10 in the C Range and -4.9 in the A Range. Took some time at lunch to try and diagnose. Noticed there was a light film on the bottom port of my aos. Removed the line and reattached. AF Learning A started learning way down at idle back to like -1. C range during my short trip back to work (3/4 of a mile) learned down to -4.5. I'm still going to boost leak check the car this weekend but I'll but some miles on my car and continue to monitor. I think I have fixed that issue though, hopefully.
    Could be. Just keep an eye on it I'd say. Especially in the low load/rpm area, I wouldn't be surprised to see some A/F Learning. Idle is pretty picky when you are aiming for 14.7 on the dot. In the higher load/rpm ranges, it should stabilize and your values should be lower. The C range, I am assuming, is your higher load/rpm range. I know in OS, we have both ranges (AFL A/B/C/D) and "factors/components" (AFL 1/2/3/4). I believe in OS, you want AFL #1 (AFL #3 is due to the rear o2 readings for example), regardless of what range/letter.
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  3. #227
    Registered User maus's Avatar
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    Accessport Values correspond to this Brandon:

    0 - <5.6 g/s = "A" Range
    5.6 - <10 g/s = "B" Range
    10 - <50 g/s = "C" Range
    50+ g/s = "D" Range

    I can never populate the D Range, Zax tells me it would be best to try and populate it on hills and stuff but Florida is flatter than a 12 year old.
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    Registered User maus's Avatar
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    Also the bottom port that I fixed the hose on leads back to the inlet, so I'm 99% sure/hopeful that it is it.
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  5. #229
    Registered User maus's Avatar
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    OP has had problems with his car the last few days. OP considering not going beyond current parts that are already installed.
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  6. #230
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    Quote Originally Posted by maus View Post
    OP is a pussay
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    Quote Originally Posted by maus View Post
    I can never populate the D Range, Zax tells me it would be best to try and populate it on hills and stuff but Florida is flatter than a 12 year old.
    I believe the D range is the only range carried over into open loop fueling. Some guys actually choose to disable it to prevent goofy learned values screwing things up. Once you are WOT, fueling values are normally pretty close. I'll play around with it some more once I get my fuel stumble worked out.


    Quote Originally Posted by maus View Post
    OP has had problems with his car the last few days. OP considering not going beyond current parts that are already installed.
    Quote Originally Posted by zax View Post
    Truf.
    Agreed with zax. Although, OP is too stupid to install an intake, so it may not be a bad idea.
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    Quote Originally Posted by Heide264 View Post
    Agreed with zax. Although, OP is too stupid to install an intake, so it may not be a bad idea.
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  9. #233
    Registered User maus's Avatar
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    OP ran low on coolant, Car ran 10.0 AFRS, Car had no power, Coolant temp gauge spiked up, OP Panicked.

    OP took overflow cap off, and added coolant. Coolant was bubbling for a good few minutes then started pouring out of the overflow. Drove the car, car hit target AFRs at WOT and felt like normal. Still debating what to do.

    Notes: I had a leak from the coolant line on the AOS that I fixed earlier this week, and I also added coolant to the tank because it was really low. Summary, I just think I needed to burp it.
    Last edited by maus; 06-07-2013 at 12:46 PM.
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  10. #234
    Registered User maus's Avatar
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    Also I know how to install a intake, I said I dont know if I want to because of heatsoak.
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  11. #235
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    Get a box with the short ram and reflective tape, run a k&n filter on stock intake, modify stock intake, run a cold air.

    Run meth or reflective tape on tmic. That big tmic is probably efficient enough that it would negate any hot air coming in through the intake and you wouldnt see higher temps than normal. Just a thought.

    Or just dont get an intake and save the money. (richest option haha)
    Last edited by wreckingball man; 06-07-2013 at 12:51 PM.

  12. #236
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    Quote Originally Posted by wreckingball man
    Get a box with the short ram and reflective tape, run a k&n filter on stock intake, modify stock intake, run a cold air.

    Run meth or reflective tape on tmic. That big tmic is probably efficient enough that it would negate any hot air coming in through the intake and you wouldnt see higher temps than normal. Just a thought.

    Or just dont get an intake and save the money. (richest option haha)
    An intake is absolutely worth it at his level, and should be purchased. It's holding him back quite a bit (especially when he installs his ID1000s).

    The increased cooling of the TMIC won't make a damn of difference, since IAT (in stock form) is monitored at the MAF sensor. By having an unshielded filter element (and not relocating IAT), you're doing yourself a disservice.
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  13. #237
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    Should change the title of this thread to "Maus builds his ******."
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  15. #239
    Registered User maus's Avatar
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    I'm still confused, could the coolant sensor pick up that something was wrong and throw the car into some type of safe mode where it would run 10.0 afrs and have almost no power?
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  16. #240
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    Quote Originally Posted by maus View Post
    I'm still confused, could the coolant sensor pick up that something was wrong and throw the car into some type of safe mode where it would run 10.0 afrs and have almost no power?
    I don't think ICT can throw the car into failsafe fueling... that's generally reserved for low IAM and the like.

    However, failsafe fueling tables generally do run very rich mixtures; actually it's exactly 10:1 on my map. I'm not saying that it's not possible, but I was under the impression that when the ECU resorts to failsafe OL tables, the boost is also pulled and the car should be running wastegate pressure. Then again, I know nearly nothing about the new CANbus ECUs, so hopefully Heide will make his way in here.
    Last edited by zax; 06-07-2013 at 08:18 PM.
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