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  1. Replies
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    802

    can you give more details, or post a log. is your...

    can you give more details, or post a log. is your engine stock
  2. this issue can be a combination of problems, i...

    this issue can be a combination of problems, i had this happen to a few jeeps, it can be related to the iac sensor not resetting to the proper steps ,if you change the values of the map it may take...
  3. Thread: 5.9 jtec

    by Omunoz
    Replies
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    952

    that is normal closed loop values on this engine,...

    that is normal closed loop values on this engine, i seen similar values for the jeep 4.0, at those rpm you don't want the 02 sensor trying to control the fuel to stoich
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    on the few 5.9 and 5.2 i done stock fuel at WOT...

    on the few 5.9 and 5.2 i done stock fuel at WOT is around 10 for AFR. even 4.0 are very rich at WOT
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    i end up with 260 in the map characteristics...

    i end up with 260 in the map characteristics with gm 2bar map =58kpa reading, this will differ depending with the type of sensor you use
  6. try spark table tune from 5.9 grand cherokee ,...

    try spark table tune from 5.9 grand cherokee , also is normal for this engines to be around 10.1 AFR at WOT,
  7. Replies
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    there is no VE table, you would use egr off to...

    there is no VE table, you would use egr off to make changes to fuel, go to edit and choose advance to see the rest of the options . now for the vcm reading high kpa ,you probably need to reconfigure...
  8. try setting your CL Disable Rpm lower around 2k...

    try setting your CL Disable Rpm lower around 2k rpm and go from there, if you run ss controller, disconnect your battery every time you make changes, FYI the oem computer is going to relearn every...
  9. post vcm log and tune file

    post vcm log and tune file
  10. Thread: tuning 97 tj

    by Omunoz
    Replies
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    2,303

    you should not have any issues with the current...

    you should not have any issues with the current cam
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    there is enough to get a JTEC running on this...

    there is enough to get a JTEC running on this forum , you just need to read more. if you want more help, post you file and VCM logs
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    you just need to have the radio off , your...

    you just need to have the radio off , your flashing might fail if you don't.
  13. i just did a GC 5.9 with big cam bored 0.30 ford...

    i just did a GC 5.9 with big cam bored 0.30 ford blue top injectors, I had to remove over 30%on the first 3 rows, and around 10 % at WOT
  14. [QUOTE=b.rudy;650475]Heres the screen shot of my...

    [QUOTE=b.rudy;650475]Heres the screen shot of my AFR histogram math parameters. Does it look right?
    109885

    [ATTACH=CONFIG]109886[/ATTACH

    let us know if you get the for formula to work , i know...
  15. a reason to disable 02 sensor is to Run open loop...

    a reason to disable 02 sensor is to Run open loop or tune in open loop
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    go engine , fuel cut off and you should see rpm...

    go engine , fuel cut off and you should see rpm cut off on the left hand corner
  17. yes, set altitude correction table to all 1, and...

    yes, set altitude correction table to all 1, and change min counts to 50 under engine diag.
  18. Thread: Jeep TJ tuning?

    by Omunoz
    Replies
    1
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    662

    it is supported, search the forum you would find...

    it is supported, search the forum you would find some stock JTEC tunes
  19. 16009886, still working

    16009886, still working
  20. theres no ve table,you would scale your fuel...

    theres no ve table,you would scale your fuel under fuel base egr off, also for better tunning get injectors with good flow data so you can set you batt offset voltage, pulse width
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    i have mine, min count to 50 and thats been...

    i have mine, min count to 50 and thats been working fine so far
  22. Thread: high idle in CL

    by Omunoz
    Replies
    2
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    926

    it sounds like a bad iac valve to me

    it sounds like a bad iac valve to me
  23. you have your closed loop disable at 5300 try...

    you have your closed loop disable at 5300 try 2000 rpm
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    [QUOTE=CVY Automotive;621383]Hello, I am using...

    [QUOTE=CVY Automotive;621383]Hello, I am using MPVI 2 and i have 2003 Jeep Grandcherokee and my O2 sensors turning on my Check engine light. It disturbing me and i tried to off my car's O2 sensors....
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    i look at your file,you need to take fuel out, it...

    i look at your file,you need to take fuel out, it looks like you added fuel to some of the idle and cruise portion of the fuel map. if you have 29# injectors you need to take out similar fuel from...
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