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Type: Posts; User: HHR_tune

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  1. Ok thanks. I wasn't aware of this new procedure.

    Ok thanks. I wasn't aware of this new procedure.
  2. VCM Editor: Engine Diagnostics DTCs greyed out

    I have recently updated to version 5.0.4 and I have noticed that now some DTCs under Engine Diagnostics are greyed out and cannot be edited anymore.

    Is this a known issue? With versions prior to...
  3. Thank you for your answer! Good point, I can see...

    Thank you for your answer! Good point, I can see the potential risks... Are those the throttle tables seen below you mentioned? Maps A to C describe RPM vs APP%, whereas Map D describes desired...
  4. Pedal Commander/Pedal Monster functionality with HPtuners?

    I would like to get a more linear, more direct throttle reponse when hitting the throttle on my 2008 HHR. As far as I understand, that's what Pedal Commander, Pedal Monster et.al. promise to deliver....
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    Engine stuttering

    For the last couple of days, I have been getting random engine stuttering (Chevy HHR 2008 LT 2.4 manual, 100'000 miles). When this issue occurs, stepping on the throttle sometimes doesn't seem to...
  6. Ok, thanks, I see. I was looking around in the...

    Ok, thanks, I see. I was looking around in the forum, but couldn't find anything. I guess I am not using the ideal search terms. Any hint what to look for?
  7. Average MPG shown lower than real after tune

    I noticed that after the tune, the average MPG as shown in the driver information display is noticeably lower than real consumption (about 29 shown vs. 32 real). Before the tune, the displayed value...
  8. Wildly fluctuating idle revs when changing between tune files

    I have a 2008 HHR 2.4 manual trans. Now I have a tune file with factory settings and two tune files from two different tuning companies. When changing between these three tune files (to compare...
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    HHR 2.4L: rev hang

    Hi all,

    So I purchased tune support and new injectors (GM 36# fuel injectors, supposed to be 50% "bigger" according to the seller) for my 2008 HHR 2LT. Working with the seller is very tedious so I...
  10. Thanks a lot for your answers. Much appreciated!

    Thanks a lot for your answers. Much appreciated!
  11. "Read vehicle" results in "Engine PWR Reduced" and "Engine Disabled"

    Hi, new to HPtuners and tuning in general, I have recently connected the MPVI2 interface to my Chevy HHR 2.4 (manual trans) to "read vehicle" with VCM Editor (version 4.4.4).

    Reading actually...
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