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I have been using parallels 7 with HPTuners running under Windows 7 without any issues.

I've been running e85 for a couple years now. MPG is around 20 highway, and usually averages 17-18 for my mixed driving. I run an open loop tune monitored with a wideband gauge, so I have it...

I am having a similar problem with 2.23, but my problem might be beyond HPT. I recently noticed that I can't see any DTC's or any of the O2/EGR statuses in the display, but then today I found out...

I'm running e85 on an open loop tune. During idle and cruise, one thing I've noticed is that as soon as it gets hot outside and I've been driving for a while, like over an hour, and IAT's are 100+...

I posted some basic info in this thread:

http://www.hptuners.com/forum/showthread.php?t=34031

Logging is just converting the voltage reading from the wideband to show 1.0 when it typically...

PCM will command richer AFR to protect a faulty cat. Add Commanded AFR to your scan data to determine if that is the reason for the rich condition.

Have you reset trims recently? If you reset trims, how much did you log after that? You should make sure to log a good 20-30 minute cruise to get correct data for trims, and don't log right after...

How is your wideband hooked up? Do you have HPT Pro with the EIO connections? I think you must have it hooked up through the EIO with a known wideband brand. You must also have AFR error in the...

Create a histogram using PID "Air Fuel Ratio Error" (make sure that PID is in the Table display). On the Row & Col Axis, use table "MAF Airflow vs. Output Frequency".

I don't know the answer to running the newer MAF's, but if you are worried about maxing the MAF, get the latest AFC 1.2 from easy performance:
...

That should work fine. I run 103's with a .030 to .035 gap, but I have the turbo.

The best ratio for gas mixture is 14.7 parts air to 1 part fuel.
The best ratio for e85 mixture is 9.8 parts air to 1 part fuel.

The O2 sensor does not know how much air or fuel you started with....

This is running E85, and is actual timing from a scan. I think boost was around 18psi on the upper limits.

http://i20.photobucket.com/albums/b230/rcarboni/2000%20Regal%20GS/Tuning/timing.jpg

Are you scanning the narrowband O2? Is it cycling just as fast?

If the narrowband and wideband are not cycling the same, then I think you have a defective wideband. If both are cycling that...

I have a PLX (Bosch sensor) wideband installed permanently. Initially, I set it up to simulate the narrowband signal back to the PCM for closed-loop operation, but I have since switched to full time...

Thanks for the replies.

The battery is a Die Hard Gold and is one year old. As long as I run the car, the battery seems ok. When it sits overnight in the cold, the battery is either weak or dead...

I put the PLX controller in the cab under the glove box. There is a switched power drop under there. If you keep it in the engine bay, hook it into the fuel pump signal connection in the fuse box.

Just curious. I have had some battery issues lately (losing charge overnight), and I want to make sure the alternator is working to spec. So, I started scanning Ignition Voltage and saw that it...

I run these coils. Never had a problem:
http://www.jegs.com/i/JEGS/555/40122/10002/-1

Is this on 93 octane? Throw some e85 in there and you will get rid of that KR. :)

Also, for gas, try to lower the AFR just a little bit down to 11.2 and see if that helps. I always ran better on...

Open HPT VCM Scanner.
Open the Table Display window.
Right-click on the EIO Input cell that you currently have the PLX WB hooked into, and select Insert Input.
Click on the + sign next to User...

If you are going to run e85, or mixes of e85, you should change your wideband readings to show lambda AFR. Do you have a gauge with the PLX, or are you just scanning with HPT?

If you are scanning...

Since you have a wideband hooked up all the time, you can run open loop and it will help to smooth out the tune and work with increased timing better. When I first raised cruise timing on e85, I...

I run a fuel pressure sender through the EGR wiring. On my 2000 Regal, the EGR Position is PID 2811. I simply added that PID to the scanner table and created a user defined PID for fuel pressure...

You are getting 22mpg on e85? Is that all highway? I'm lucky if I get 17 most of the time, but I have done just under 20 on a long highway trip.

I have the same problem with the mileage...