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  1. Anybody? Why is it that the '98 LS1 only has...

    Anybody?
    Why is it that the '98 LS1 only has misfire detection from basically 1600-3000 rpm? I've read several posts that say they keep the high rpm misfire detection but disable the low and mid...
  2. Stall, Cam, Supercharger, and converter lock/unlock

    I have an '98 A4 'vette with a SS3600 Yank converter, 228/232 .571/.573 cam, and a supercharger. All of these will affect the rotating harmonics of he crankshaft and cause false misfire detections...
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    The fact that the LTFTs are high doesn't...

    The fact that the LTFTs are high doesn't necessarily mean its burning rich. Those values are basically the amount of fuel required to bring the AFR to stoich. Basically your current tune is...
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    Are you sure its not the air pump kicking in...

    Are you sure its not the air pump kicking in shortly after you start it to warm the O2 sensors? It will read lean until it shuts off for sure.
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    Thanks for the response! Moving it to 11.5 and...

    Thanks for the response! Moving it to 11.5 and testing again the weekend. I'll also increase the timing a bit to see how it likes is.
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    So how does my timing table look in my tune? ...

    So how does my timing table look in my tune? Since boost doesn't occur at all rpms, well not significant anyway, I'm trying to scale the timing accordingly. That is, as RPM increases, spark advance...
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    No, not clamped to the tailpipe. Its welded in...

    No, not clamped to the tailpipe. Its welded in several inches back from the collector on the driver's side.
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    I leaned it out to closer to 11.2. I think its...

    I leaned it out to closer to 11.2. I think its time to get to dyno and strap it down. I made 4 runs, the last was a cement freeway entrance ramp with a textured surface. I was unable to...
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    I've looked at a number of boost tunes, granted...

    I've looked at a number of boost tunes, granted they are all > 5psi but the spark advance looks like:

    2200 rpm 6000 rpm...
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    Hows my spark advance?

    Could I get a boost expert to do me a favor and look at my spark advance? I'd like to know if it looks like I'm going down the right path.

    AFR: Around 11.0 (93 pump, 0 KR)

    Car info:
    98 A4...
  11. The info for those injectors should be on the...

    The info for those injectors should be on the Greg Banish DVD (you can contact him to verify).
  12. Ok, I had this completely back-a$$wards. I'm an...

    Ok, I had this completely back-a$$wards. I'm an idiot, I had my terminology backwards. Open loop is where 02 sensors are ignored and closed loop is where they are used. So wether or not i had...
  13. I contacted HP tuners about this and they said...

    I contacted HP tuners about this and they said that they use the same commands as GM's tech 2. Whether or not its working on my application, I don't know.

    Can someone validate my observation: ...
  14. This is what I did (I followed the Greg Banish...

    This is what I did (I followed the Greg Banish DVD on this):

    1) Start vehicle
    2) Start Scanner
    3) Open VCM Controls
    4) Disable close loop
    5) Disable fuel trims
    6) Reset fuel trims

    Did this...
  15. VCM Controls - Closed Loop Disable, does it work?

    I was spending some time tuning my MAF and I wanted to see how the MAF behaves above 7000 hz. I went to the VCM Controls (Displays->VCM Controls) and turned off "Closed Loop" and "Fuel Trim Learn",...
  16. I resolved this issue. If anybody needs help...

    I resolved this issue. If anybody needs help with this please PM me.
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    Figured it out. For the above to work I needed...

    Figured it out. For the above to work I needed to include "Air Fuel Ratio Commanded Hi Res" in the table BEFORE I used in the custom PID....not sure why that is, but it is what it is.
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    Figured it out. This will save you A LOT of...

    Figured it out. This will save you A LOT of time:

    Whenever you create a custom PID make sure you scanning the variables you are referencing in the custom PID AND make sure they are in order (I...
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    Tuning MAF and VE

    I'd like to start out tuning my MAF. I have a PLX WB. I can view the PLX AFR (or Lambda) and I can view the vehicles commanded AFR (high or low res) but I'm having trouble creating user-defined...
  20. Figured it out. Whenever you create a custom...

    Figured it out.

    Whenever you create a custom PID make sure you scanning the variables you are referencing in the custom PID AND make sure they are in order. I would say this is definitely a bug,...
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    Commanded Lamba

    Since custom PIDs do not work in version 2.24.57 of the VCM Scanner I am unable to create a user defined PID to capture commanded lamba. I'd like to use a function [PID.6001]/14.63 but in version...
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    It looks like "Air Fuel Ratio Commanded Lo Res"...

    It looks like "Air Fuel Ratio Commanded Lo Res" ([PID.6000]) and "Air Fuel Ratio Commanded Hi Res" ([PID.6001]) are just not supportd in HPTuners. Are there any substitutes for these PIDs?
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    I have this working. I anyone needs assistance...

    I have this working. I anyone needs assistance with this PM me.
  24. All custom PIDs result in

    Defect Description:
    Creating any custom PID results in <unsupported parameter>

    Reproduction
    1) Select to create user defined PID
    2) In the function edit box enter:
    [PID.6001]
    3) Save and...
  25. "I am at my wits end with this thing and my...

    "I am at my wits end with this thing and my laptop nearly entered lunar orbit after my last effort." LOL, I love it. I'm getting the EXACT same error.
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