Help with a tune for a 2008 Acura CSX Type S

Calibrations for FlashPro Manager - Use all calibrations at your own risk (dyno tuning recommended)

EFICU
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Re: Help with a tune for a 2008 Acura CSX Type S

Post by EFICU »

Moist wrote: Mon Jul 12, 2021 9:53 pm Ok no problem! So should I grab a stock unit tomorrow from Acura/Honda or should I just order the bosch you were talking about?
Check prices and availability. If the dealer can get one soon for you and it's reasonable, go for it. If not, a parts store should be able to get one the same day. I say Bosch so you can get a good quality one I know has worked well. As mentioned, we ultimately don't want some no name brand basically. Bosch should be readily available through a quality parts store.
Moist
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Re: Help with a tune for a 2008 Acura CSX Type S

Post by Moist »

Ok no problem I will confirm prices. If it isn't a great price then this is the one we are talking about just to confirm: https://www.rockauto.com/en/moreinfo.ph ... 50&pt=5132
EFICU
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Re: Help with a tune for a 2008 Acura CSX Type S

Post by EFICU »

Moist wrote: Mon Jul 12, 2021 10:13 pm Ok no problem I will confirm prices. If it isn't a great price then this is the one we are talking about just to confirm: https://www.rockauto.com/en/moreinfo.ph ... 50&pt=5132
No, you want the upstream o2 sensor. If you go Bosch, you want this one https://www.rockauto.com/en/moreinfo.ph ... 132&jsn=12
Moist
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Re: Help with a tune for a 2008 Acura CSX Type S

Post by Moist »

Awesome thanks I will keep you updated on when I get this replacement going and I will confirm the cat just to make sure its stock tomorrow when its bright out haha. Thanks again I appreciate it.
EFICU
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Re: Help with a tune for a 2008 Acura CSX Type S

Post by EFICU »

Moist wrote: Mon Jul 12, 2021 10:46 pm Awesome thanks I will keep you updated on when I get this replacement going and I will confirm the cat just to make sure its stock tomorrow when its bright out haha. Thanks again I appreciate it.
Sounds good, I'm curious to see how it acts with the new sensor.
Moist
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Re: Help with a tune for a 2008 Acura CSX Type S

Post by Moist »

EFICU wrote: Mon Jul 12, 2021 10:49 pm
Moist wrote: Mon Jul 12, 2021 10:46 pm Awesome thanks I will keep you updated on when I get this replacement going and I will confirm the cat just to make sure its stock tomorrow when its bright out haha. Thanks again I appreciate it.
Sounds good, I'm curious to see how it acts with the new sensor.

Hey EFICU,

I apologize for the length of time between the last message got a bit busy and didn't have a chance to install it until today. Otherwise I got it in easily and looks like its reading good. Here is the datalog. Also I took a look at the cat and everything looks stock! Let me know if you require anything else!

Thanks
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EFICU
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Re: Help with a tune for a 2008 Acura CSX Type S

Post by EFICU »

Moist wrote: Sun Jul 25, 2021 3:32 pm Hey EFICU,

I apologize for the length of time between the last message got a bit busy and didn't have a chance to install it until today. Otherwise I got it in easily and looks like its reading good. Here is the datalog. Also I took a look at the cat and everything looks stock! Let me know if you require anything else!

Thanks
You're back, haha. I've been wondering about your car...

Yeah it looks like it's reading properly. Which calibration are you driving on in this datalog? I am guessing this is Rev01.1, if so, let's go with the Rev02 attached. And we'll get back to the 20 minute datalogs with stop and go driving and a WOT pull in third from 2500-8600.
Moist.SD.Rev02 (0Cam)(Vtec5500)).fpcal
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Moist
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Re: Help with a tune for a 2008 Acura CSX Type S

Post by Moist »

Haha yeah sorry about that ah well Im glad its reading normally. Here is the next datalog. Tried to not stay constant so hopefully this one is good haha. Seems now it runs a bit more rich haha which is good compared to staying lean.

Thanks
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EFICU
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Re: Help with a tune for a 2008 Acura CSX Type S

Post by EFICU »

Yep, definitely on the rich side. The injector duty cycle was way up, so it is rich. I pulled a bunch of fuel out in vtec for that. As rich as it was, it won't ready very well. So we might need to make a couple revisions here to get back on track. I don't want to pull too much out.

Take this one for a quick drive. We only need the third gear WOT pull, so you don't need to make a 20 minute datalog. Just the third gear WOT pull so we can check the AFR and we'll go from there.
Moist.SD.Rev03 (0Cam)(Vtec5500).fpcal
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Moist
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Re: Help with a tune for a 2008 Acura CSX Type S

Post by Moist »

Here is the next log I grabbed haha.

Thanks
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EFICU
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Re: Help with a tune for a 2008 Acura CSX Type S

Post by EFICU »

Sheesh, super rich. It's finally getting the fuel out, I pulled out a bunch more. We should be there on this one, at least for the 0 cam anyways. Vtec will now be at 4000. Honestly just need the WOT pull again like you've been doing. Once we get this lined out, we will go back to normal datalogs. Just trying to get you back on track quickly.
Moist.SD.Rev04 (0Cam)(Vtec4000).fpcal
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Moist
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Re: Help with a tune for a 2008 Acura CSX Type S

Post by Moist »

Wow thats crazy haha how come it ran so rich? Otherwise it looks like in this one it wasn't too bad. I apologize as I didn't realize I didnt go to the full 8600 as it seems I pulled at 8200ish.

Thanks
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EFICU
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Re: Help with a tune for a 2008 Acura CSX Type S

Post by EFICU »

Probably a combo of me adding fuel for the old sensor, and your elevation. I thought I pulled the fuel back out, but maybe I didn't on the first run today. It's just about dead on now, so we're on the right track now. Sorry to run you through that, just wanted to get things dialed before we move on without making massive swings and going the wrong way you know. You don't have any pre-filter on the intake filter do you? One of those waterproof mesh screens like a K&N or something?

What elevation are you at?

Now we're onto the 15* cam angle. Vtec will be at 4500 now. Back to the 20-30 datalogs with the third gear WOT pulls from 2500-8600. Everything will go much smoother and quicker from now on, we're through the trenches. Haha
Moist.SD.Rev05 (15Cam)(Vtec4500).fpcal
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Moist
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Re: Help with a tune for a 2008 Acura CSX Type S

Post by Moist »

Makes sense haha mostly just curious. And No idea I will confirm as I didn't look closely around there but I'm not sure if this affects anything but it looks like the intake comes with some sort of bypass in case it becomes wet. I will look and confirm though.

https://www.hybrid-racing.com/collectio ... civic-si-1

In terms of my elevation I believe I am around 859m. Now if I move between elevations will that affect the tune a bunch when driving in the future? And random question if it gets cold here like -40 here in canada how much do you think that gets affected also?

Thanks again I appreciate it I will get onto getting the logs for you soon here possibly either tonight or tomorrow!
EFICU
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Joined: Mon Feb 25, 2019 10:14 pm

Re: Help with a tune for a 2008 Acura CSX Type S

Post by EFICU »

No problem, any questions you have just ask. Yeah the intake doesn't come with the pre-filter, just wanted to make sure you didn't have one. I have seen them cause flow issues and wanted to make sure you didn't have one based on the fuel tables.

Yeah you're up there a bit, makes sense on the fuel tables. The tune should be fine when you get to a lower altitude. We run the three WOT columns in a linear fashion, so when you come down in elevation it will run off those higher columns. Once we get finished, if you want to set some time aside to make a run down to lower elevation we can always double check it. For temp, there are temp compensations as well. It should be pretty good at -40, but all cars are different. Will it be close, yes, perfect, we wouldn't know until you get there. But again, like the elevation, when the cooler temps come you can always contact me and we can look it over. Once we get it dialed at current temps, the compensations can all be modified to make it work for all temps for you.

Happy to help, in mean time, run Rev04 until you're ready to make some more datalogs. The new one is the first run on the 15* cam angle, so it will need adjustments. While Rev04 is dialed, so that would be ideal while you drive around until you're ready to make some datalogs.
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