• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

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    Torque Pro questions

    I am trying to setup Torque Pro and I can not figure out how to playback the recorded logs. Does anyone have tips for this app?
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    ZZP Pulley Puller, Front Timken Hub Bearing, rebuilt Gen V Snout

    •Original ZZP Square type Pulley puller $80 shipped •New 513179 Front Timken Hub Bearing $60 shipped •Rebuilt Gen V M90 Supercharger Snout with Viton Seal and ZZP Coupling. Painted Silver $150 Shipped. All Prices are shipped to 48 US mainland States. All prices are friends and family PayPal...
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    Hptuners original mpvi pro

    I am thinking of selling My HPTuners MPVI pro. It has the year 2004 Grand Prix V6 unlocked. No credits available. I do not know what it is worth so I will consider serious offers. I accept PayPal as payment and will ship to the 48 mainland states.
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    Eaton Gen V supercharger rebuild question

    Hi all, I rebuilt my Gen V supercharger snout and rotor pack. My question is how freely should the bearings move on the snout after rebuild? They seem a little tight to me. The rotor pack seemed to come out ok and timed right. The case bearing race still need to be removed. I took the casing...
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    Tuning while car is cold before warmup

    Is there a way to tune just the cold or initial startup tuning without affecting the normal warm tune?
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    Stock Steel Rim options

    I have read the sticky wheel post and through some of the posts. I get more confused the more I read. Sorry I have cognitive issues. What I am looking for are a nice set of new black steel rims in stock size for my 07 Grand Prix GT. From what I have read the stock size of these are 17 x 7.5...
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    What’s my car worth? 2007 Grand Prix GT

    I am looking to sell my car but I have no idea what to list it at. Obviously I can look at the Blue book but it may be worth a tiny bit more. Trade in value would be way less. 2007 Pontiac Grand Prix GT Supercharged. 219,302 miles. ****Triple Edge stage 2 transmission with 3.29 gear ratio...
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    High knock, add fuel?

    Hi all, I did a scan today and I am having issues with high knock. Going by my scan it looks like I need to add fuel, especially in the 9000hz and above. The wideband readings are at 19.6 which I believe is the highest it will read. Also it looks like the narrowband o2 reading are a bit low as...
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    07 Supercharged stalls at high RPM around 6k

    Hi all, My 07 Grand Prix GT Supercharged stall/dies at WOT around 6k RPMs. I had this issue before and after replacing the MAF, Crank Sensor and Harmonic Balancer. The car runs and accelerates fine during normal street driving and when I'm pushing it a bit on the street. When I get WOT on the...
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    Any interest in a used AEM METH KIT?

    I have a Meth kit installed on my 2007 Grand Prix that I don’t use. I have no need for it after demodding the E85 and headers. If anyone has an interest in it let me know how much you are willing to pay/make me an offer. I will pull it off if wanted. You may need additional liquid hose or wire...
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    2007 supercharged Balancer repair sleeve? Front seal replacement

    I am getting ready to replace my front crankshaft seal and sensor on my 2007 Grand Prix supercharged series III. Does anyone know if there is a balancer repair sleeve for this model? I searched and did not find much on this. I want to have one on hand just in case there is a groove on the...
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    Fuel trims off

    I am having issues with my fuel trims being off. There are no exhaust leaks, the o2 sensor is new, and I can not find a vacuum leak. The MAF is a “newer” Delphi. Probably about a year old. What am I missing? Maybe a bad MAF but the readings seem ok. I tried to tune the trims but they keep going...
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    Random stalling

    I am having issues with my 07 supercharged stalling while trying to pull out of a driveway at a higher speed. Sometimes it also does it accelerating around a corner really fast. The car usually will start back up when put in neutral and I can continue on. I do not see anything in scans that...
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    Used E85 parts for sale.

    I have some parts that are a couple weeks old. > 3.0 pulley excellent condition. $40 [SOLD] > Siemens 60# injectors. Excellent condition. $189.99 [SOLD] > Belt wrap kit. Ground down a bit for clearance. $99.99 > LQ4 Maf. Has a bit of methanol spray stain on it. $79.99 All prices plus...
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    E85 startup tuning???

    Hi all I have my E85 tune all set, very low knock and trims are good. I am having random starting issues when I startup in the mornings. The temperature is around 70 here in the AM. Is there a way to scan and tune just for startups? Any help is appreciated. Thanks
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    E85 very rough idle.

    Hello all, I just converted my 07 supercharged Grand Prix to e85. I installed the pump and 60# injectors. Problem is very rough starts and really rough idle. It drives perfect and has nice power. I don’t notice the issue under driving acceleration. It is 70* here so not really a cold start. I’m...
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    07 high flow fuel pump

    Hi guys and gals, I have a bad fuel pump in my 07 Supercharged Grand Prix. My question is has anyone successfully replaced the stock pump with an AEM or ZZP high flow pump? I have in my 04 but the 07 design is completely different. It’s either that or just buy a stock all in one sending...
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    Misfires!! Urghh

    I am chasing a random misfire that is not setting codes. I have swapped out the ICM, coils, plugs and wires all separately to try to eliminate the issue. I have tried multiple case learns. I have a newer Maf that is clean and reading correctly. What am I looking at next? ECM?
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    04 Grand Prix pre-production badges

    I have the pre-production competition group badges. Rear and door. They are in good shape but do have oxidation as to be expected from a 17 year old car. The X on one of them separated. See pics for details. Do not want to separate but for the right price I may. As-is. ($100) Make offers.
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    To port or not to port?

    I had to get a new set of heads (exhaust in coolant x2) and am debating whether or not to port these. I hand ported the last set and may have went too much on some areas and probably caused some flow inconsistencies. What power are the stock heads and intake good for?
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