IS F (2008-2014) Discussion topics related to the IS F model

New Tuner available - Tuned by Loi

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Old 05-05-22 | 06:02 AM
  #121  
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Originally Posted by Jwconeil
I have had the tune for a couple of days now, and only have driven to and from work once in traffic. Unfortunately, I noticed my tire has a slow leak after I got to work, so I have driven somewhat conservatively so far. I’m hoping my new tires arrive today for installation.

Under the curve, I’m seeing a noticeable change in how the car pulls. After finding my tire almost flat, I pumped it up and was paying more attention to it while driving. I had honestly forgotten about the tune until I started driving, and for a split second I started to question why the car was pulling so hard under partial throttle. I then remembered I installed the tune the night before.

I have tuned a couple of NA cars with lack luster results. So far, this is the first NA tune that I have had that I was taken back a little by feeling more power. I honestly didn’t have high expectations, and so far I’m pleased.

I have no clue how it feels at full throttle, I haven’t had the chance to try, but the gain in daily use is already worth it to me.

This weekend I’m going on a two day car cruise with some friends, so I’ll run it through the paces. I’ll update the thread after a week or so.

There won’t be any comparisons of drag racing that are fair, as I’m transitioning from drag radials to street tires today. I don’t have three cars right now, so it’s time for more sensible tires for a little while. I’ll post drag results, but I’m sure the 60 foot won’t be impressive.
Does the latest tune also work like the RR tune with regards to CEL's? I saw some posts in the past that it did not and that people would need to run spacers on the O2 sensors.
Old 05-05-22 | 06:15 AM
  #122  
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Originally Posted by caymandive
Does the latest tune also work like the RR tune with regards to CEL's? I saw some posts in the past that it did not and that people would need to run spacers on the O2 sensors.
I sent you a private message.
Old 05-05-22 | 06:33 AM
  #123  
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The 90 degree secondary downstream O2 spacers have a very high success rate.
The 2nd gen 2UR platform is very quick to set pending DTCs and I installed a set for a customer that would get pending codes within 5 miles. After the install we did multiple key cycles and 20mi with zero codes.
Furthermore, I was monitoring the downstream O2 voltage with my scan tool and observed a normal wavelength with the spacers.
Minor cost for a solution IMO.
Old 05-05-22 | 08:49 AM
  #124  
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Originally Posted by viprez586
The 90 degree secondary downstream O2 spacers have a very high success rate.
The 2nd gen 2UR platform is very quick to set pending DTCs and I installed a set for a customer that would get pending codes within 5 miles. After the install we did multiple key cycles and 20mi with zero codes.
Furthermore, I was monitoring the downstream O2 voltage with my scan tool and observed a normal wavelength with the spacers.
Minor cost for a solution IMO.
This is also what PPE suggested to me. They can be bought on Ebay for around $20 or less.

I've had this tune for over a month now and I am really enjoying it! My mechanic drove my car as well and said it feels faster everywhere, especially in the mid range.
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Old 05-05-22 | 11:39 AM
  #125  
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This is the style 90* o2 spacer I'm using. It came with three restrictor fittings. I'm using the smallest fitting of the three.
Old 05-05-22 | 01:38 PM
  #126  
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Originally Posted by Positron


This is the style 90* o2 spacer I'm using. It came with three restrictor fittings. I'm using the smallest fitting of the three.
Are these PPE brand? Mine came with the biggest restrictors installed. I did just recently throw a P0430 after 550 miles, which means the car isn’t seeing a big enough difference in measurement between the front and the rear. I put in the middle size to see how it does. Odd the drivers bank is fine. Now I’m thinking I should have put in the smallest one on both sides.

You throw any codes?

The current tune doesn’t resolve this issue, but it will in a couple of weeks. Let’s not dive into it on a public forum. Just know, restrictors won’t be an issue very soon once the updates are pushed out.

Last edited by Jwconeil; 05-05-22 at 01:42 PM.
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Old 05-05-22 | 02:40 PM
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Originally Posted by Jwconeil
Are these PPE brand? Mine came with the biggest restrictors installed. I did just recently throw a P0430 after 550 miles, which means the car isn’t seeing a big enough difference in measurement between the front and the rear. I put in the middle size to see how it does. Odd the drivers bank is fine. Now I’m thinking I should have put in the smallest one on both sides.
You throw any codes?
I got the 90* o2 spacers on Ebay last year. But these are the same style that PPE was previously offering with the 3 restrictor fittings. I've gotten the pending p0430 code twice so far. But I drive my ISF with obdFusion app running and its very easy to clear a code.
Old 05-05-22 | 02:50 PM
  #128  
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Seems odd to only throw P0430 and not P0420 as well (both banks instead of just one)… but it’ll be a moot point in a couple of weeks anyway.

OBDFusion makes it very easy to clear and move on.
Old 05-16-22 | 04:09 PM
  #129  
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Just saw this on IG....😎....thought I'd throw the link up here to show he's able to tune the LC now

View this post on Instagram



Last edited by MileHIFcar; 05-16-22 at 04:15 PM.
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Old 05-20-22 | 07:01 AM
  #130  
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I wanted to spend some time with the tune before making any recommendations. Ultimately, I love it. I feel like it changed the car a lot. The shifts seem faster in all use cases, even when just cruising down the street in auto. The car is more eager in all use cases. It takes less throttle to get the car moving. I’ve been driving my car for years, and have had to relearn throttle inputs because I find the car accelerating harder than it used to, even under normal driving.

Its faster at light throttle, mid throttle, and full throttle… in all RPM ranges. It shifts faster. The car feels very happy. It feels faster.

I will note, my original email tune had some low rpm, low throttle input Knock feedback. It was not enough to lower KCLV. My car happily ran 24-25 KCLV on Costco 93 octane. I asked for a revision and sent a data log. Loi is a champ. He sent me a revised tune asap once I sent him a datalog. I log using OBDFusion.

That light KFV may be more my car than the tune. My O2 PPE extensions are old, and that messed with LILEVOs KFV. Regardless, it still ran a very healthy KCLV, so the ecu wasn’t worried about what it was seeing, and Loi fixed it anyway.

Im very happy with the tune. I also impressed a few people with how fast the car was on my cruise a couple weeks ago. When a stage 2 Audi TT RS can’t quite keep up with you, it’s pretty rewarding.

Last edited by Jwconeil; 05-20-22 at 07:10 AM.
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Old 05-20-22 | 09:25 AM
  #131  
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Originally Posted by Jwconeil
I wanted to spend some time with the tune before making any recommendations. Ultimately, I love it. I feel like it changed the car a lot. The shifts seem faster in all use cases, even when just cruising down the street in auto. The car is more eager in all use cases. It takes less throttle to get the car moving. I’ve been driving my car for years, and have had to relearn throttle inputs because I find the car accelerating harder than it used to, even under normal driving.

Its faster at light throttle, mid throttle, and full throttle… in all RPM ranges. It shifts faster. The car feels very happy. It feels faster.

I will note, my original email tune had some low rpm, low throttle input Knock feedback. It was not enough to lower KCLV. My car happily ran 24-25 KCLV on Costco 93 octane. I asked for a revision and sent a data log. Loi is a champ. He sent me a revised tune asap once I sent him a datalog. I log using OBDFusion.

That light KFV may be more my car than the tune. My O2 PPE extensions are old, and that messed with LILEVOs KFV. Regardless, it still ran a very healthy KCLV, so the ecu wasn’t worried about what it was seeing, and Loi fixed it anyway.

Im very happy with the tune. I also impressed a few people with how fast the car was on my cruise a couple weeks ago. When a stage 2 Audi TT RS can’t quite keep up with you, it’s pretty rewarding.

How did you notice the Knock feedback? I'll be getting the tune once he has the flash kits back in stock, and am curious what I should look out for, I'm currently using OBD fusion to monitor KCLV
Old 05-20-22 | 10:29 AM
  #132  
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Originally Posted by lakai5
How did you notice the Knock feedback? I'll be getting the tune once he has the flash kits back in stock, and am curious what I should look out for, I'm currently using OBD fusion to monitor KCLV
Monitor KFV as well. Your car sets KCLV values based on KFV (knock feedback value). -3.0 and higher is optimum. Anytime you get a new tune, it’ll jump around some as your car learns and sets its timing. Ideally, it’ll eventually settle to -3.0. Between -3.0 and -5.9, it’s less than optimum, but not a level that is dangerous. -6.0 or lower, and it’s something that needs addressed and you can get a revision… but let your car learn before jumping to conclusions.

Go ahead and set up instant data logging. Every time I’m using OBDFusion, it is data logging. I can pull my KFV from any given drive.
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Old 05-20-22 | 02:15 PM
  #133  
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Originally Posted by Jwconeil
I wanted to spend some time with the tune before making any recommendations. Ultimately, I love it. I feel like it changed the car a lot. The shifts seem faster in all use cases, even when just cruising down the street in auto. The car is more eager in all use cases. It takes less throttle to get the car moving. I’ve been driving my car for years, and have had to relearn throttle inputs because I find the car accelerating harder than it used to, even under normal driving.

Its faster at light throttle, mid throttle, and full throttle… in all RPM ranges. It shifts faster. The car feels very happy. It feels faster.
Very well put. I agree with everything you just mentioned. You explained it a lot better than I could. My ISF isn't a daily driver but I mostly drive to and from the racetrack and go frequently to a nearby incline expressway.

Just last month I went to a bracket racing event. From morning to late afternoon, my car was hitting consistent 11.7 & 11.8 ET and trapped 119 mph on all six passes. Last year during the same time in spring, I would get inconsistent times ranging from 11.7 to 12.00 with 116 to 118 mph trap speeds.
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Old 05-20-22 | 03:50 PM
  #134  
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Originally Posted by Jwconeil
I...That light KFV may be more my car than the tune. My O2 PPE extensions are old, and that messed with LILEVOs KFV.....
FWIW I have some low load knock detection (up to -6-7) on occasion with the rr tune, swapping out the header extensions solved my CEL but not the low load knocking
Old 05-20-22 | 05:02 PM
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Originally Posted by 93MSB
FWIW I have some low load knock detection (up to -6-7) on occasion with the rr tune, swapping out the header extensions solved my CEL but not the low load knocking
My tuner said some fluctuation is normal, and if it hits -6 we will do a revision. Most of the time, mine is -3.0 now. I still get some random fluctuation, but nothing that is bothering me. The car is healthy and has plenty of KCLV.

Im not an expert, but I think the KCLV is telling on a car. These cars are conservative and they pull timing if they detect knock. So KFV fluctuation isn’t the sum of all parts. Even with some fluctuation, I was running higher KCLV on 93 octane than I used to run on e30. I had 25.3 KCLV on my cruise, and we were running the cars pretty hard. It maintained that KCLV until I reset the tune with the revision. Now it’s a bit lower because I’ve been stuck in metro traffic and haven’t opened it up as much. Now I’m in the 23s. I think it will go up if I can ever find some open highway in Indy.

Last edited by Jwconeil; 05-20-22 at 05:21 PM.
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