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Old 05-17-2013, 09:50 AM   #26
dux10
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Quote:
Originally Posted by nmlittlebigman View Post
Your car is NOT happy. Definitely get a tune ASAP. You had some massive knock and it appears that the tune on your car has some workarounds like disabling AF learning above 1100 RPM. If I were in your shoes I would have Steve tune it. I hear nothing but good things about him.

I'd agree with the car not being happy. I know its a cruise log, and its kinda hard to tell what the map looks like from it, but with the IAM @ 0.5 and it pulling 10* is scary considering that the car was tuned for an IAM value of 1...

Send me the rom and let me take a look if you want.

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Old 05-17-2013, 09:54 AM   #27
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After ECU reset, the car starts at .5 IAM. I'll have to wait until I get home from work today, and i'll snag the ROM off my other laptop. Could the Walbro be causing this?
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Old 05-17-2013, 10:09 AM   #28
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After ECU reset, the car starts at .5 IAM. I'll have to wait until I get home from work today, and i'll snag the ROM off my other laptop. Could the Walbro be causing this?
It starts at 0.5? Most tuners set it to start at 1. That right there scares me. If he tuned it with a IAM of 0.5 and the ecu can effectively double the KCA yet he hasn't seen the car behave under those conditions. And who knows if he even anticipated those conditions...

I've never seen a walbro cause knock. I have seen it alter fueling if the stock pump couldn't keep up.

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Old 05-17-2013, 10:22 AM   #29
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It's probably too much timing at cruise or just when you step into it to climb a hill. If you want help you can pm me. But it won't always show up in learning view.
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Old 05-17-2013, 10:51 AM   #30
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Yeah, I was doing the Vishnu reset to get my IAM up.

I think the tuner put it at .5 to make sure that everything is good before allowing it to run really hard, should any issues arise? I'm not a tuner though
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Old 05-17-2013, 11:37 AM   #31
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Yeah, I was doing the Vishnu reset to get my IAM up.

I think the tuner put it at .5 to make sure that everything is good before allowing it to run really hard, should any issues arise? I'm not a tuner though

Ehhh.... Let's say I tune a car and datalog it with an IAM of 1 and have 15* @pk torque and 22* @redline with no knock after repeated abuse and I decided to leave it there. The car will never see more timing that 15-22 degrees all other conditions being the same.

Now let's say I tune a car and datalog it with an IAM of 0.5 and have 15* @pk tourque and 22* @redline with no knock after repeated abuse and I decided to leave it there. The car can then add up to 50% of the Knock Correction Advance table to that 15-22* if it feels that it can. Problem is, I never datalogged the car with more timing so its possible that the car is gonna start knocking until, at the absolute least, IAM drops back down.

50% of the KCA table could be 1 degree or it could be 4 degrees or even more depending on how the tuner set it up. An addition 4* at peak torque is a very hazardous proposition....

Not sure if any of that makes any sense or not, but I can try to break it down better if you need me to.

Steve @ Pullz-On Tuning
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Old 05-17-2013, 12:15 PM   #32
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It's very common for tuners to set the initial IAM to 1 while tuning, and then change it back to the stock 0.5 when they're done. There's nothing wrong with that practice. Now if you TUNE the car WHILE the IAM is 0.5, of course that would cause a problem, but I've never heard of a tuner being that dumb.
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Old 05-17-2013, 12:27 PM   #33
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It's very common for tuners to set the initial IAM to 1 while tuning, and then change it back to the stock 0.5 when they're done. There's nothing wrong with that practice. Now if you TUNE the car WHILE the IAM is 0.5, of course that would cause a problem, but I've never heard of a tuner being that dumb.

look at the log and then see what you think...

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Old 05-17-2013, 12:40 PM   #34
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I mean - Scott Siegel tuned it before, which was pretty renowned for a while, but hmm..
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Old 05-17-2013, 01:06 PM   #35
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Originally Posted by BeastianSTI View Post
I mean - Scott Siegel tuned it before, which was pretty renowned for a while, but hmm..

Its possible he did what eggroll said, but it should not be that much timing in spots regardless...

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Old 05-17-2013, 05:58 PM   #36
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True - i'll go download the ROM now!
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Old 05-18-2013, 10:19 AM   #37
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Never got anything from you?

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Old 05-19-2013, 02:22 PM   #38
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Sorry for being so late to get back - had issues with my laptop trying to pull the ROM.

Here is a DL to the rom:

http://s000.tinyupload.com/?file_id=...56074243675935
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Old 05-19-2013, 09:57 PM   #39
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When did the rich business start? The fuel pump could be the culprit.

Usually a fuel pump change won't cause this, BUT you were professionally tuned before you got it. The tuner could have easily been compensating for a drop in fuel pressure from the insufficient pump by jacking up the MAF scaling. Now that the fuel pressure problem has been fixed with the new pump, that MAF scaling adjustment would now be making you run too rich.
Just looked at the OP's rom and egroll hit the nail on the head. I compared the OP's maf scaling to my own scaling on a 70mm APS intake that's utilized by several cars and they were identical (+/-1%) to the OP's- until ~3.3v at which point the OP's scaling just keeps increasing. By 4v its 10% higher and by 4.5v its nearly 25% higher than my scaling.



Numbers displayed is percent.

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Old 05-20-2013, 01:03 AM   #40
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Hah - interesting. I wonder how hard it would be to just adjust the scaling for the new fp
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Old 05-20-2013, 01:28 AM   #41
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Datalog wideband in conjunction with romraider and tune. If u want I can send you your rom with my maf scaling to get you close?

The problem is, all the load scalings for the timing maps and OL fueling will be skewed. They'd all have to be reduced on the high end but it would be a bit of a guessing game as to how much.

Steve @ Pullz-On Tuning

Last edited by dux10; 05-20-2013 at 01:38 AM.
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Old 05-20-2013, 12:16 PM   #42
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I need a special connector for that to the laptop right? Aux to usb?
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Old 05-20-2013, 01:04 PM   #43
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Quote:
Originally Posted by BeastianSTI View Post
I need a special connector for that to the laptop right? Aux to usb?
I don't know if you have the LC-1 or an AEM 30-4100 but I hope this helps: http://www.evoxforums.com/forums/showthread.php?t=21747
You can generally get what you need from radio shack. Once you have made the connection to you laptop with either a db-9 or usb then you can select it as an external sensor in romraider and log.

And another link on how to: http://forums.nasioc.com/forums/show....php?t=2079034
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Old 05-20-2013, 02:21 PM   #44
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Quote:
Originally Posted by nmlittlebigman View Post
I don't know if you have the LC-1 or an AEM 30-4100 but I hope this helps: http://www.evoxforums.com/forums/showthread.php?t=21747
You can generally get what you need from radio shack. Once you have made the connection to you laptop with either a db-9 or usb then you can select it as an external sensor in romraider and log.

And another link on how to: http://forums.nasioc.com/forums/show....php?t=2079034
I have the Innovate LC-1 wideband
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Old 05-21-2013, 10:13 AM   #45
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Not sure what you need with the Innovate to log as most of my customers have a UEGO. lol

Breeze through the product documentaion that comes with the unit and it should say

Steve @ Pullz-On Tuning
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Old 05-21-2013, 10:21 AM   #46
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The LC-1 has a 1/8" headphone style plug that carries the serial data. With the LC-1 you should have received a 1/8" to DB9 cable, then you just need a DB9 to USB adapter to get it into your computer. Like this one:
Amazon.com: Keyspan by Tripp Lite USA-19HS Hi-Speed USB Serial Adapter, PC, MAC, supports Cisco Break Sequence: ElectronicsAmazon.com: Keyspan by Tripp Lite USA-19HS Hi-Speed USB Serial Adapter, PC, MAC, supports Cisco Break Sequence: Electronics
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Old 06-03-2013, 05:31 PM   #47
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I've ordered the cable, and am waiting for it to get here!
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Old 06-04-2013, 09:42 AM   #48
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So who tuned your car in the Tampa area anyway?
I think I already have an idea

/Drunkmann
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Old 06-04-2013, 10:43 AM   #49
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Quote:
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I mean - Scott Siegel tuned it before, which was pretty renowned for a while, but hmm..
Apparently this guy tuned it. I have learned to completely ignore peoples names. There are very few well known tuners that have absolutely 0 bad rep. **** happens and that is life. Visconti , phat botti, etc etc. I have heard nothing but good things from people tuned by them, but I have also fixed their tunes on people who had a bad time with them. It can be a roll of the dice depending on when you go and meet your tuner. If hes super busy, you may not get the experience you want.
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Old 06-04-2013, 12:16 PM   #50
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Apparently this guy tuned it. I have learned to completely ignore peoples names. There are very few well known tuners that have absolutely 0 bad rep. **** happens and that is life. Visconti , phat botti, etc etc. I have heard nothing but good things from people tuned by them, but I have also fixed their tunes on people who had a bad time with them. It can be a roll of the dice depending on when you go and meet your tuner. If hes super busy, you may not get the experience you want.

I agree 100% with this. You'd be surprised how many hack jobs some of the big names do. Does it work? Sometimes, but its not the right way to do it and can cause many problems. The biggest thing is using the OL fueling table to tune boost and use the stock maf scaling. Some don't even touch AVCS or do so poorly. Others don't tune tip-in at all. It really is crapshoot as to what you could end up with. Sad part is, the customer rarely knows better/different unless they can compare it to another tuner...

Scott was known to be the one of the best until he got too busy to keep doing it. He was well known in the south east.

Steve @ Pullz-On Tuning
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