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Type: Posts; User: califcarm

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  1. Replies
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    I did this for underboost as well to eliminate an...

    I did this for underboost as well to eliminate an occasional code that direction. Just increased it about 1.5 psi for the delta before it triggers.
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    Boost vs rpm is what you want to be looking at. ...

    Boost vs rpm is what you want to be looking at. RPM is the increment by which all your tuning parameters are made. I did not choose to tune with DAL. I set DAL at the high end of reasonable (255)...
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    I think you are supposed to copy/paste the table...

    I think you are supposed to copy/paste the table values for where they are different, but not flash his entire tune as it can cause problems. So open your original tune, use his as a "compare" file,...
  4. P0221 can be caused by the tune? (LNF in Cobalt)

    P0221 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch B Circuit Range/Performance Problem

    I created a thread in Cobaltss.net also on this, but hoping for any comments on if this can be...
  5. Not sure which version of HPT you are on but I...

    Not sure which version of HPT you are on but I have 0,1,2,3,4,5,7. In that 1-5 are the forward 1-5 gears. I put 1,2 at 100%, and then tune the other three forward gears. I tune third gear to be...
  6. As was mentioned, you can get a lot of grunt if...

    As was mentioned, you can get a lot of grunt if you tune it that way. Many don't to save the clutch from slipping, or possible damage to bearings or ring lands. I am all in for max power by 3500rpm...
  7. Looks like a mechanical solution helped some...

    Looks like a mechanical solution helped some indicating that the ECM is probably using at least some boost control to cushion power return after shifting:
    ...
  8. Thanks for the direction. I had reduced it some...

    Thanks for the direction. I had reduced it some with optimum spark, but the "urgency" (high numbers) that helped with post shift performance made throttle modulation out of turns too lively for my...
  9. LNF Cobalt: reduce/eliminate power lag after shifting

    I do not plan on using NLS for fear of breaking something if I don't pull it off well.

    But I experience what is described and shown in this thread (post #2 specifically mentions it):...
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    That is how I basically worked it. Optimum spark...

    That is how I basically worked it. Optimum spark - main spark is what you either want to maintain (as you adjust the main spark table for ignition spark advance) if you want a stock response, or...
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    I think you have two different things that you...

    I think you have two different things that you are describing here.

    One is that you have a stft swing that lasts for probably less than 1/10th of a second. Not even picked up in HPtuners when...
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    I wonder if it has to due with a differential...

    I wonder if it has to due with a differential between pedal position and throttle plate position. If your optimum spark is setup aggressively so that the car is quite responsive ("lively" reaction...
  13. See post #18 from Chris at HPtuners....

    See post #18 from Chris at HPtuners.
    http://www.hptuners.com/forum/showthread.php?56523-v2-24-MAP-logging-only-going-to-255Kpa-even-when-graph-is-scaled-to-300Kpa

    I take that to mean that the PCM...
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    I can't speak for these guys who have WAY more...

    I can't speak for these guys who have WAY more experience than I have, but I ended up with 4 things affecting/controlling my boost. I ended up with DAL's in the high end of the table set to more or...
  15. I think I just saw in my first screen shot what...

    I think I just saw in my first screen shot what appeared to be clutch slip to you. I think I had downshifted from 3rd back into 2nd gear and tapped the gas to rev match a little. I did that just...
  16. It's OK. I can get it to slip at low rpm in 5th...

    It's OK. I can get it to slip at low rpm in 5th gear (under 3500 rpm), but it is holding in 4th at any rpm as long as I keep boost in 4th to 22-23psi. I have gotten it to slip at low rpm in 4th...
  17. Just to follow and put closure to it, it did not...

    Just to follow and put closure to it, it did not turn out to be the tune, but was a physical problem. End tank on the IC was cracked, which shortly afterward popped completely to make it completely...
  18. here is 4th gear from 3500-5500 rpm. I think...

    here is 4th gear from 3500-5500 rpm.

    I think it is Ok, but let me know what you think.
  19. Thanks Mike. So check boost solenoid and the...

    Thanks Mike. So check boost solenoid and the other solenoid that controls the BPV (which I think would cause this if it spontaneously opened up).

    Just for learning, what in the screen shot might...
  20. LNF: can anything in a tune cause P0299, turbocharger under boost?

    Been running into this issue only after I run through one gear and partially into a second boosted gear. will get a P0299 code pretty consistently. But never when I am just going through one gear. ...
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    Has the problem stayed fixed? I have run into...

    Has the problem stayed fixed?

    I have run into a P0299 3 times now recently without anything I can see wrong in the logs. Might be physical, but seems after going into limp mode it will run...
  22. I think the OP is running the 3bar GMS1 sensors...

    I think the OP is running the 3bar GMS1 sensors and has adjusted his parameters for it already. (so he does indeed show over 23psi on the boost lo res).
  23. I agree that you don't seem to be "capped out" in...

    I agree that you don't seem to be "capped out" in a sensor, as that would peg the sensor and it would not vary at all. Not a 24-25 kind of thing, it would stay exactly the same. You can see that if...
  24. The 22.4 is the max reading (255kpa) the ECU will...

    The 22.4 is the max reading (255kpa) the ECU will accept from the upper manifold map sensor. It will never register above that. The software is just coded that way for some reason. So you can...
  25. Thread: LNF KR issue

    by califcarm
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    10,391

    Please don't get me wrong, I do appreciate all...

    Please don't get me wrong, I do appreciate all the information you, Mike, Nick and the other guys have posted up here. Huge head start from having to learn it on my own for sure.

    But you and Mike...
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