Open Flash Header Discussion

[tomaszjanczak]

Originally Posted by 2much

Mine seems to be constant since it started, a week or two ago.

Will logging exhaust data be accurate enough to determine something like a tiny pinhole leak?

I think it just depends how much the leak affects the O2 readings. It might be too small to make a difference. I logged and my data logs looked fine and I took it to a repair shop to do a smoke test to check for leaks to be 100% sure.

Originally Posted by 904FRSlow

I did clear the code. If i remember correctly, it was p2096 or somewhere around there.
I retuned because it was running like crap after I cleared the code.

I got code P2097 on the same tune you are running. At first that would indicate a leak but I didn't have any leaks because multiple smoke tests showed no leaks and data logs looked good. I emailed Shiv about this and he turned off the code in my tune since everything was looking good and there were no other codes except that one. This might be your situation too.

[904FRSlow]

Originally Posted by s2d4

That doesnt help much if you can't remember it for sure.

Do you have a K&N filter or any oil based filtet?

I do. It was p2096 actually, just googled it

[Wepeel]

Well this is interesting. I'm running OFH+OFT. I notice that when the car idles a lot, like when I leave the car running between autox runs, that the LTFT1 climbes super high - it hit as high as 18% this weekend. It quickly learns back down after I leave the autocross and start normal driving again. Fuel trims at higher loads seem unaffected, so AFR at high loads is still ok, this is only during idle.

But I believe if that fuel trim parameter becomes too positive it will results in the P2096/2097 you guys are seeing.

Fuel trims during driving are all within 6% normally and I hear no odd noises.

[Robert@Openflash]

Dear Openflash Customers,
We understand that there has been a long dreaded wait for the OFH. The west coast labor dispute occurred roughly a month ago and even today we are still dealing with the delay. We apologize for the headache and inconvenience it may have caused you. We are doing our best to try to retrieve our shipment but for the most part it is out of our hands. We have gotten the most recent update from the ports. Our first shipment of 17 will likely arrive later on this week or early next week. We have 25 more that will hopefully follow next week. And then we have another shipment of 20 to follow after that. So no matter what we will have all of your orders fulfilled. We are just waiting for our shipment to show up. We are doing everything on our end to speed up the process by prepping the boxes and labels so that as soon as the shipment shows up we can go over QC and then ship out the package to you all. Thanks again for your patience and we apologize for the delay.

Cheers and have a wonderful day.

[stugray]

Originally Posted by 2much

Well I still have this little rasp/rattle that I cant put my finger on, and unless I'm going crazy, it was NOT there for the first month or two of owning OFH.

Originally Posted by tomaszjanczak

You're not going crazy. If we're hearing the same raspy/exhaust leak sound, then mine is a random surprise every day. One day it will be really loud, the next completely quiet, like if the stock header shielding and everything was there. .

Originally Posted by 2much

Mine seems to be constant since it started, a week or two ago.

Will logging exhaust data be accurate enough to determine something like a tiny pinhole leak?

Originally Posted by JB86'd

I also have the raspy noise..it's only under about 3000 rpm and I think it's just air movement, possibly from the diameter of the overpipe being slightly smaller than the header collector size. I think it's more apparent on cold days, seems to get quieter after the car is warmed up.

I upgrade ROM to the OFT stage 1 with NO HEADER and I got the rasp as well.
I thought it was a exhaust shield or something like that getting loose.

However I believe it is just the tune and they way the system manages the HPFP. There was a thread on here all about it, cant recall enoguh key words for a search though....

[2much]

What bothers me is that I've had the same tune (oft stg 2 91) and header (ofh) installed for a while and this sound wasnt there. Nothing in the engine bay has changed since. It also seemed to be worse today.
I might end up taking it down to CSG or another local shop that is really familiar with 86's just to get a second opinion.

[JB86'd]

Originally Posted by stugray

I upgrade ROM to the OFT stage 1 with NO HEADER and I got the rasp as well.
I thought it was a exhaust shield or something like that getting loose.

However I believe it is just the tune and they way the system manages the HPFP. There was a thread on here all about it, cant recall enoguh key words for a search though....

This is something completely unrelated to what we're talking about, what you have is VVT noise, which is normal on the stage 1 tunes.

[904FRSlow]

Originally Posted by s2d4

That doesnt help much if you can't remember it for sure.

Do you have a K&N filter or any oil based filtet?

Here is some data I logged if it helps...

[2much]

OK i've logged some data, and posted to datazap. I really don't know what I am looking for.

This is about a 20 minute drive to get some lunch, it is mostly casual driving but I got some first, second, and a single third gear pull in. Did not reach redline in the third gear pull though.

Can anyone help me analyze?

http://www.datazap.me/u/cjh/first-lo...e?log=0&data=1

[Sleepless]

I had a raspy sound at 3200; turned to by a loose O2 sensor. No codes, just an annoying sound. All good now.

[s2d4]

Originally Posted by 904FRSlow

Here is some data I logged if it helps...

IAM less than 0.5 most of the time, literally lost half of your timing.

Did you put in 87 or something?
Or really low e on e85 tune?

[904FRSlow]

Originally Posted by s2d4

IAM less than 0.5 most of the time, literally lost half of your timing.

Did you put in 87 or something?
Or really low e on e85 tune?

I only put in 93. Checked the MAF sensor and its fine. My friend thinks I might have a leak on one of the heads though.

[s2d4]

Originally Posted by 904FRSlow

I only put in 93. Checked the MAF sensor and its fine. My friend thinks I might have a leak on one of the heads though.

Perhaps, get it checked out asap.

[Takumi788]

Here is the latest and greatest from Openflash for the people waiting for header shipment. Hopefully this time the port adviser is right.

Hey Josh
We understand that there has been a long dreaded wait for the OFH. The west coast labor dispute occurred roughly a month ago and even today we are still dealing with the delay. We apologize for the headache and inconvenience it may have caused you. We are doing our best to try to retrieve our shipment but for the most part it is out of our hands. We have gotten the most recent update from the ports. Our first shipment of 17 will likely arrive later on this week or early next week. We have 25 more that will hopefully follow next week. And then we have another shipment of 20 to follow after that. So no matter what we will have all of your orders fulfilled. We are just waiting for our shipment to show up. We are doing everything on our end to speed up the process by prepping the boxes and labels so that as soon as the shipment shows up we can go over QC and then ship out the package to you all. Thanks again for your patience and we apologize for the delay.

Cheers and have a wonderful day.