Newby's first log file

[Roadtrip]

If anyone would like to take a look at this log file, if it shows up that is, please feel free to give me some suggestions on what to change and what other PID's to record in order to best tune my Challenger. So far I am running the 91 octane performance tune with all fan settings set -10 degrees from where they started and I am running my fuel 3% rich across the board. The Challenger runs great but I am sure it can run better. I thought it ran great when I picked it up at the dealer before buying the predator. Now I cannot imagine having to drive it without the predator tune!

2009 Dodge Challenger R/T Classic
U7135
version 9r17
hardware univ_rev2

[340DART]

Roadtrip, very nice car. Couldn't open the file, but then I have been having trouble with some of them.

[Roadtrip]

I used my macbook to send it so maybe that is the problem. I only have 1 PC in the house out of 7 computers and really wish that the predator was mac friendly. I will try to open it from my PC (if I can get my wife off it long enough) and see if there is a problem.

[Roadtrip]

Yep I have a problem with it too. Maybe I saved it wrong. All I can seem to save is dashboards. I was running it and watching it as it ran. I however have not learned to save a log file yet. I will try again later. Everything looked fine except I had 4 misfires but only 1 retard. Like I said I am a newby and it seems I need to buy a copy of windows for my macbook so I can do some serious data logging. The car runs strong except it seems to bog down on launches unless I run the rpms up so high that I have lots of wheel spin. I am running all season Goodyears too so maybe a set of Pirellis would help. I can however roll nice and easy up to about 20mph and push in the clutch, rev to 2500 rpm's then drop the clutch and the Hemi puts me way back in my seat and my Pioneer dash unit says I am pulling almost 1.5 g's. Not bad but if I could get that push from a stand still launch, I would be happy.

[Roadtrip]

Now I think I have it. Or not?


U7135
UNIV_REV2
2009 Dodge Challenger RT Classic

[Quick]

Not.

[Roadtrip]

Try it now. I changed it and it worked for me. I think I am getting it. If I open it from my data viewer it works fine. That is if I remember where I am downloading it to.

[Quick]

That worked!

You should try to keep the number of things you log down to around 8 or so. Each parameter is polled/sampled serially and each one takes some time to report. The more you have the longer it takes to get back to the first one --> slower sampling rate.

You really don't need the 02 sensor heater temps... get rid of those
You already have Intake air temp so you don't care what the sensor voltage is -- get rid of Intake Air Temp Volt.
Gas mass in manifold? -- I don't think so. It's going to be a modeled parameter anyway.
Base Spark -- that's pretty much just the value in the table? Actual Spark Cyl 1 is the one you're really interested in.

Add:
Pedal Position %
KNK LT RETARD

I really don't think you should be seeing any misfires...

[Roadtrip]

Thanks, I will try these options. I was only logging what the intro page told me to log for my first log. The intake temp was to see if my CAI was really pulling cold air or not. I think I read in one of these threads where you are a Chrysler engineer? I worked for Chrysler the past 14 years and the Challenger was my gold watch or what I used my voucher for, which ever way you wanna look at it. I was 3rd generation UAW and hated to go but even with 14 years seniority, my future was to be short lived with all of the jobs that will be cut in the next year or so. I am one of the lucky ones though. I have skills and somewhat of an education and have lined up a job in the music industry which is my true passion. I will try a new log and post it tomorrow.

Thanks again.

[Quick]

I think I read in one of these threads where you are a Chrysler engineer?

Who me??? I am an engineer, but I'm a wide area networking software engineer. I am NOT a tuner either. (I did quote from the SRT engineer's chat once).

That's a pretty nice "gold watch"! Doing something you like is always better and I'd think the music industry would be a bit less volatile with respect to the economy right now. waaaay less than the auto industry anyway...

[Roadtrip]

OK here is my second log file. She was running strong but by looking at the file, on my WOT it looks like my timing needs adjusted a little? I am no expert, but that is what I think I see. What is up with all the misfires? I have about 3800 miles on this car and only run BP/Amoco 93 octane.

[Quick]

Oops, add Intake Air Temp (deg) back in there. You would only supposed to take out the voltage one. Might want to add base spark back in there as well.

Thats a REALLY screwy looking log. The timing looks funny and I think misfires are really bad. something is going on.
Why don't you try logging the stock tune. I think they still have the option somewhere to "modify stock tune"? You can install that without modifying any parameters (reset parameters when you install it). If they don't have that option any more then restore the original backup and log that. Only difference is that restore original backup unmarries the predator from the car so when you go to install the performance tune again it's going to upload your original backup again just like when you first got it. No difference except a few extra steps and time.

There are also parameters for which cylinder is misfiring (I'm pretty sure the predator can log those). If you see a misfire with the stock tune then log those too (or maybe just log them right off the bat).

[Roadtrip]

Ok now I am worried. The car ran so strong but the misfires being bad scares me. I reinstalled my original backup. I assume that removed the fan settings and fuel mixture changes I made. I still see 3 misfires and I am worried even more. Please list each item you want me to log because I seem to be missing something, like the 1 cylinder or something else. By listing each item you wish for me to log I can be sure to log everything needed to fix this problem. Is there a chance that the tool is bad? I know, probably not, just asking. Well here is the tune that came from the factory and was backed up when I married the tool to my car.

[Roadtrip]

Here is the same factory tune with the actual spark cyl 1 added. The car ran real strong earlier and now it runs rough when it sits and idles. Could I have a bad wire or something? I did install a sub box with a 400 watt amp last week and I did not put a cap inline, although I plan on it or upgrading my battery and alternator. Surely this would not be causing the problem? I have had no error codes at all except for a low tire sensor came on during a trip down the interstate. It came on for about a minute and went off. i stopped and checked all tires air levels and all was OK. Looks like I may need to see my dealer soon. I can hear them now, "it's this CAI, or it's this catch can! What you put a 180 stat in this car? Please let me know what your professional opinion is soon as you can. I am going to bed now and will be back on this site by 10 am EST. Thanks again for all of your help and thank goodness I have the predator or else I would have no clue what is going on inside there!

[Roadtrip]

Alright now, I am back. being a member of the Challenger ZZZZ Forum I posted about my misfire problem. It was suggested that I have Jonah look at my data log files and that he could help me out. Quick, i also appreciate your input as well! The data log files are all listed in this thread from 91oct performance w/CAI to the original tune that was loaded into the vehicle from the factory. I will try to answer any questions as quickly as possible and will post some things I do know now. I have never had any error codes and I am told that a misfire problem would usually cause this in order to prevent detonation. I also have not noticed any misfiring or pinging at all. To be perfectly honest the car was running really strong after loading the quick adjustments into the stock 91perf tune. the quick adjustments are as follows. I lowered the temp settings on my fans 10 degrees since I have installed a 180 degree T-stat. I do believe this put my min at 180 and my max at 189. I also inout my tire size as that had not been done yet. My input was 245/45r/20. The only other adjustment I put in was that I went rich 3% across the board on my fuel. Other then that I was running the 91 perf tune stock and had been running it for about 6 weeks and that is also how long the t-stat has been in the car. My temp guage in the car always ran about 2 marks below center every since I installed the 180 t-stat, even before resetting the fan settings. My car has just under 3,800 miles on it and has been run gently about 80% of the time. I do however like to indulge in the ponies once in awhile but I have never hit the rev limiter which has not been reset and I believe the stock setting to be somewhere around 5700rpm. I drove the car conservatively for the first 1500 miles in order to break it in properly. I do not drag race the car as it is a daily driver. I do not drive it in the rain however. I have used 93 octane fuel from BP/Amoco every since I brought it home from the dealer. The car had 13 miles on it when i drove it home and 7 of those miles were my test drive so i know nobody else had driven the car hard.

I am hoping thaty the misfire readings are just a ghost in the machine kind of thing and that the problem can be remedied by resetting my PCM or something of that nature. Like I said before, the car was running very strong when these data logs were taken. I am now going to go out and reload the 91oct perf tune in my car since I have put the original factory tune back on the car in order to try and diagnose this problem. The car was idling rough last night after the last data run on the factory tune and I want to see if it runs smoother with the performance tune. Please Jonah and Quick let me know what you think I should do about this problem but as I said the car was running stringer then ever after the adjustments were made to the 91 tune. I do not however want ti damage my car and i am well aware that misfiring is a bad thing and could do serious damage to the vehicle if not remedied.I will also look under the engine cover to make sure all wires are intact and connected properly. i will also try to data log each cylinder if possible to try and locate which one is misfiring.