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Old 03-25-2008
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Making adjustments with XCal. 2?

I was messing around with my xcal 2 tuner today and I got ready to make some changes with timing and spark just to see what would happen but then I got to wondering if I could mess something up. Has anyone messed with your settings? I have always wondered if I could fine tune it some to make it best for my truck. Another question is how can I use the tuner to adjust for different tire size?
Thanks!
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Old 03-25-2008
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Anybody?
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Old 03-26-2008
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I screwed around with mine when I had it. Nothing bad happened, but the truck did get slightly faster. I think I put all the sparks at +4 or something like that...I cant really remember
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Old 03-26-2008
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Ya I might try and play with it some...I guess it really cant hurt...do you know anything about adjusting for diff. tire size?
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Old 03-26-2008
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Quote:
Originally Posted by vansnxtweek View Post
Ya I might try and play with it some...I guess it really cant hurt...do you know anything about adjusting for diff. tire size?
I never did that, but I think you just go in and change it to whatever you have...should be easy
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Old 03-27-2008
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Alright thanks for the help!
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Old 03-27-2008
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I want to know if I can adjust someting to aid in mileage. I emailed the seller of my X-cal and got nothing back for advice.

****
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Old 03-27-2008
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Woah woah dude... careful.. don't get too crazy with the Spark Advance.
It's funny.. I just got an Xcal2 and my tune..
Here's my story from earlier today:

Quote:
Weird Issue... Under hard acceleration only with the tune, I get pinging. I think.. It sounds like rattling cans under the hood.
I had 1/4 of 87 low grade, I filled it up to 3/4 with 90 octane.. so whats goin on? fuel? do i need t disconnect the battery?


Quote:
Got my tune.
I had 1/4 tank of 87 in, I filled it up to 3/4 tank with 90.. it was pinging.. I put the Spark Advance down one from 2000k-4000k, 4000k-8000k rpm and it went away.
This tune definitely made a difference, shifts are a lot more firm and responsive, acceleration is improved greatly.. even with my 31" tires.
Once I'm sure the tank is completely full of 90 octane, I'll put the timing back to the tune's default.
Everyone should get a SCT Tuner!!

I think I'm going to be getting fuel from Chevron only from now on, they have pretty good fuel IMO, good cleaners.
yeah I don't know if that helped you out at all.. lol..

Here's a thread... it kinda gets off-topic here and there.. people fighting n whatnot.. uh... have any questions just ask.. I'm learning a lot about this tuner..

http://www.explorerforum.com/forums/...d.php?t=210881
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Old 03-27-2008
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ya I have a pinging prob. also...I think I will try retarting my timing a bit to see what happens..thanks for posting that!!
Those dudes are hostile over there...
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Old 03-27-2008
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Nah, they're really nice and informative. Some people though.... as I'm sure you have a few over here.... are just... blah..

Try what I did, just retard them by One.. [in the rpm ranges you have pinging in] and see what happens.

I'll be changing it back to the performance tune's stock timing after my tank is completely full of premium.. you might wanna try the same..

Do you have msn or yahoo?
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Old 03-27-2008
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Using the x-cal2 with a laptop will allow you to see knock sensor activity.

I run at least 93 octane, have the timing jacked to the max, and run it 2% below leanest. Never have any problems. I've even tried 92 octane a few times... and noticed it pinging only once.

Rich
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Old 03-27-2008
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I mean I ran the 93 for a long time I just dont like that if I do run 87 it pings..it just doesnt seem like it should do that..but I guess it could also be the tune.
So what you are saying is take the timing advanced or retarted to the max? and Do you just mean 2% leaner?
I have tried hooking up the xcal2 to my computer but I cant get it to work...I dont know if its vista or what...I would like to hook it up though...

Storlied I dont have either of thoes but I do have aim...vansnxtweek
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Old 03-27-2008
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I have vista and have zero problems, use the latest programs.. you can get them from www.sctflash.com
when you select your tune, it Should ask you if you want to customize the options.. just down the timing in the rpm range you have pinging issues. -1 until it goes away.
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Old 03-28-2008
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"I mean I ran the 93 for a long time I just dont like that if I do run 87 it pings..it just doesnt seem like it should do that..but I guess it could also be the tune.
"

What your seeing is that the timing is too far advanced for a lower octane fuel. It's quite normal if your trying to run a high octane tune on 87 gas.

In the user adjustible settings you can make the WOT air/fuel richer or leaner. Mines at 2% under the leanest setting possible. And my timing is maxed. (using a scanguage I see 25 at WOT)

Rich
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Old 03-28-2008
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Yea I only had the tuner for about a week and then the truck was gone, so I never really got a chance to play around with it

if it pings, just change it back, only takes 2 minutes
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Old 03-28-2008
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Either change it back, or put the spark advance down.
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Old 01-28-2009
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Quote:
Originally Posted by wydopnthrtl View Post
Using the x-cal2 with a laptop will allow you to see knock sensor activity.

I run at least 93 octane, have the timing jacked to the max, and run it 2% below leanest. Never have any problems. I've even tried 92 octane a few times... and noticed it pinging only once.

Rich
What parameter do you look at to see knock sensor activity? Maybe i'm a little slow but I dont see anything that I think is knock sensor activity on mine.

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