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Type: Posts; User: rindoze

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    This is solved. Fix was to change spark plugs, I...

    This is solved. Fix was to change spark plugs, I went to a projected tip one. Factory was non-projected tip for this engine, but everyone with a turbo online were running projected tip. I had also...
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    Yep I got all those issues sorted in that post,...

    Yep I got all those issues sorted in that post, VEs adjusted pretty good. They are not as rich when the engine is under load, and most of those high negatives at low KPA are in part from DFCO not...
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    Stumble off idle

    I have an issue where my car stumbles off idle. If I put the car in neutral and rev it, it stumbles when I rev it under ~2k rpm. If I roll into the throttle it is fine.
    Car is a turbo 6 clyinder,...
  4. Because I buy from Amazon and its half the price....

    Because I buy from Amazon and its half the price. The GM one has so many Chinese counterfeits that you may get a fake one. Holley tech support told me it was the same settings, I asked them straight...
  5. This is pretty much wrapped up now. Fuel pressure...

    This is pretty much wrapped up now. Fuel pressure was checked and is dead flat 80 psi all times(I'm running off the internal pump regulator for a camaro). The exhaust gasket had some leaks, had to...
  6. Its a single OHC engine. I disabled variable cam...

    Its a single OHC engine. I disabled variable cam in the OS. I'm using all the GM engine management parts including O2s. Most of the time I am only waiting a couple minutes after flashing to start...
  7. I've stopped and started the scanner 6 times...

    I've stopped and started the scanner 6 times today, its always the same, it says it wants more fuel at idle. I've tried doing this the normal way, I keep adding fuel but the histogram doesn't...
  8. I'm getting a fuel gauge now. According to the...

    I'm getting a fuel gauge now. According to the histogram yes its lean everywhere, but looking at the real time log anywhere its idling its rich. Is it hptuners generating these histograms? Perhaps...
  9. I got the O2 bung welded into the collector now....

    I got the O2 bung welded into the collector now. Unfortunately the AFRs are still reading lean. It really doesn't make any sense to me. The majority of cells want fuel, but sometimes adjacent cells...
  10. I agree, and was thinking the same but its now...

    I agree, and was thinking the same but its now looking like O2 issues to me. Before I put this engine in the car it had a turbo LS in it which I sold. The pump stayed in the car (its in the tank) and...
  11. Yeah its an I6, the I6 forums were pretty dead so...

    Yeah its an I6, the I6 forums were pretty dead so posted in here. Whats been done is this is an Nissan L28 engine with ALL the EMS of a vortec 4200 attached to it (sensors, injectors, throttle body,...
  12. I added 1.1x then 1.1x again and again. On the...

    I added 1.1x then 1.1x again and again. On the second 1.1x the car drove fantastic, misfires were gone, but it was showing lean all over again. When I did the the 3rd 1.1x it felt worse, had some...
  13. Tried again but this time removing from the VVE....

    Tried again but this time removing from the VVE. It no longer throws P0068, and revs, but is still showing lean. This log is just me idling in neutral.
    140008
    140009
  14. I tried to fail the MAf, and I get P0068 as soon...

    I tried to fail the MAf, and I get P0068 as soon as I touch the gas and then the throttle pedal is disabled. I disabled the DTC for P0068 but then it disables the throttle pedal.
    Here is the log and...
  15. I agree, makes no sense. Here is a tune with the...

    I agree, makes no sense. Here is a tune with the VVE values from run 8 139988
    Run 7 was that x.75.
    From what I can tell, the leans are in transient zones on log 1, which would line up with where...
  16. I posted the wrong tune for the VVE update, by...

    I posted the wrong tune for the VVE update, by the final log posted it was up 2-3x what was in the tune. This should be having a significant impact right? As the logs show it wasn't doing anything to...
  17. Here are the tunes before and after adding a ton...

    Here are the tunes before and after adding a ton to the VVE which line up with the logs.
    This is a turbo straight 6 with 3 bar map. One interesting thing is the injector flow rate vs pressure from...
  18. Engine goes mega lean when it enters closed loop

    This is an E67 ECM manual car. When in OL I am mostly rich, with some lean spikes that lead to random misfires being thrown. Car drives pretty good other than those random stumbles, but once warmed...
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    To answer my own question: Random misfires are...

    To answer my own question: Random misfires are triggering a OL fault and when that happens it stops adjusting STFT and LTFT.
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    4200 STFT not logging

    I'm trying to lock in a tune using an E67 from an 08 trailblazer, and the STFT trims just stop after a couple minutes. Anyone know what is going on? All the stock components are used, but they are on...
  21. NVM looks like I was being mislead by the default...

    NVM looks like I was being mislead by the default log layout. It is mixing in the non existent bank 2 sensor into the readings and thus throwing them off.
  22. Here is the log. This is taken while in neutral,...

    Here is the log. This is taken while in neutral, revving the engine. 139350
  23. Fuel trims pulling 100% fuel, but O2 reads lean

    Anybody know why my STFT and LTFT are pulling 100% fuel while the O2 sensors are mostly reading absolute minimum (~60mv). To preface this is an E67 from and 08 atlas 4200, on a completely different...
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    Well looks like this is a stupid idea, just need...

    Well looks like this is a stupid idea, just need comp cams to give me a 4 or 5 lobe cam for the pump. I see there is already support for this in the ecu with [ECM] 7060. I would guess this is not the...
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    External high pressure pump

    Had anyone used an external high pressure pump to get more flow? If you do the math the injectors have huge flow rates (even when considering they cant fire during exhaust stroke), so it seems the...
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