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    What do I need to tune my car?

    After having my car and asking a few questions here over the years, my tune needs to be adjusted. I need to know what I need from HPTuners to read and adjust my tune. I have a Pontiac Solstice GXP...
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    They have never been replaced. I guess I should...

    They have never been replaced. I guess I should look at those too seeing as how my MAF o-rings were all coming apart and they've only been in the car for 4 years.... Hmmmm....cheaper and less time...
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    Thank you for your response! I thought it might...

    Thank you for your response! I thought it might be that, but wasnt 100% and didnt want to tear apart the engine and be wrong. My main concern is the CAFR. I know I should be looking at lambda, but...
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    Need some help with weird aft/lambda

    Hello again....

    You guys are my final chance at any hope other then going to the dealer and letting them flash my car back to OE tune. Going to be honest. I don't have hptuners. But I know a...
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    Considering its an '08 LNF Solstice, I don't...

    Considering its an '08 LNF Solstice, I don't think so.... My question though is something new I've found. I've had it dyno tuned... And I just replaced the exahuast from the cat to the y split. ...
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    I don't own anything currently from HPTuners but...

    I don't own anything currently from HPTuners but an OBDII cable. I merely need to run a data log. Do I have to purchase software, or will an HPTuners OBDII cable be enough? If I do have to...
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    serial to usb???

    I need to do some scanning on my car and I've got the OBDII to serial cable for hptuners.... I don't have a serial input on my computer, what can I use? Are there adapters or should I order a...
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    No. Temp is also working fine. Fan comes on at...

    No. Temp is also working fine. Fan comes on at 198 like it was set for...so I know it's not that. I'm leaning toward a bad (1 of the 2) O2 sensors, but not certain which one... Or the ECM has...
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    Commanded AFR has changed on it's own

    My commanded AFR has always been 14.7, and 29.4 during DFCO (or FCO coast down). Suddenly it's not 13.79 and 27.58 respectively. My car is running horribly rich. Even during cold start, it's...
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    What do I need now?

    I am interested in read/writing a tune in my Solstice (LNF). What do I need with the new system to do this?
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    Funny you should say about misfires. I have a...

    Funny you should say about misfires. I have a nasty vibration at 1k that comes and goes. And I was thinking that's what it was. But I haven't set a CEL yet. I was actually just starting to lean...
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    Commanded AFR has changed on it's own

    What would cause a commanded AFR to go from 14.7 at idle to 13.58?
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    To add a note to this, yes, LNF injectors fail. ...

    To add a note to this, yes, LNF injectors fail. On our Solstice/Sky LNF forum, we've had several members whom have had injectors fail. 2 of them acted like they were plugged, and the third one just...
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    Question about DFCO and AFR readings

    BACKGROUD: I've been having a horrible vibration issue at about 1k on my LNF Solstice GXP. As the car warms up "sometimes" the vibration goes away, other times it doesn't. My question is this. ...
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    I have an R/T and hate this issue. However, I do...

    I have an R/T and hate this issue. However, I do have the track pack and when I set to sport mode, IMSMC, it goes away. Let me experiment tonight. My track mode is set to turn off traction control...
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    Thanks TurboCobalt. I would appreciate it very...

    Thanks TurboCobalt. I would appreciate it very much! I will be in touch!
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    Well, that's part of my concern. My old HPFP...

    Well, that's part of my concern. My old HPFP only pumped 1800psi, the new one at WOT sees 2300psi.... So that's why I'm a bit concerned.
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    Replaced the HPFP on my LNF Solstice

    This weekend I replaced my HPFP on my Solstice. I was getting fuel in my oil. So the HPFP was more then likely going bad. My questions is this -
    1. Is there anyone near Pontiac, MI that can...
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    I just figured out what was wrong with mine. I...

    I just figured out what was wrong with mine. I was seeing major erratic behavior with STFT. At idle I would see -30.47 and stay there after a WOT. Then the next 5 minutes it was normal. My AFR...
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    I already know all of this. I keep getting code...

    I already know all of this. I keep getting code p2188 - too rich at idle. I had to replace my cam exhaust and intake solenoids as they also set a code. Since I've replaced them, the p2188 doesn't...
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    Fujita CAI on Solstice

    I have a Fujita CAI on my Solstice GXP. I've had a p2188 - too rich at idle, ever since I was dyno tuned. I've been told to get rid of the CAI as Fujita's on our car are nothing but trouble. The...
  22. I was just reading this...and I have a question. ...

    I was just reading this...and I have a question. Did he keep the GMPP tune after he installed all these items in hopes that it would adjust itself?
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    So doing the conversion (because I didn't have my...

    So doing the conversion (because I didn't have my settings right) I'm at about 1.944lbs/min or .0324lbs/sec. and from what I see above, this is rather much for idle. So back to my initial question,...
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    Sorry, should have clarified....I want cfm...

    Sorry, should have clarified....I want cfm measurement at idle...

    Mass Air Flow Rate = 24.064 cfm
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    What is a normal MAF reading at idle?

    I'm wondering what a normal MAF reading would be at idle on an LNF? I keep getting code P2188 - Too rich at idle bank 1. It doesn't affect any performance, car still goes like a scalded cat, still...
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