OpenFlash Tablet E85 (and gasoline) Maps now available

[Shiv@Openflash]

Originally Posted by akyp

@shiv@vishnu, I have another question and hope you won't mind answering it. While comparing Stock Mapping ZA1J700G.bin to the .bin pulled from my own car, they should be the same no? Seems not:


On the left is the file from my own car, right is 'Stock Mapping ZA1J700G.bin' from your Downloads page. On the left it seems all the data is shifted up by two rows and the last two rows should belong to another table.

I am using VVT intake angle and VVT exhaust angle as examples, but there are a few more tables like that.

For this reason I feel uneasy about flashing v1.34 on my car -- I am running the v1.31 file that you sent me by email, which looks similar to the left when opened in Tuner Pro.

So is there a problem with my own file or the XDF?

Hi,
The reason you are seeing what looks to be a problem with the XDF is because you are trying to view your 700G ROM in our XFD which is meant for 01G ROM type. Even our 700G tune is actually a 01G rom type since all are tunes are based on the latest factory ROM release. It was just named with "700G" in the name so that OpenFlash manager would allow it to be loaded (it doesn't allow changes of ROM IDs for safety's sake). In the case of the 700G and 01G ROM types, the share mostly the same mad locations with the exception of (but not limited to) VVT intake and exhaust base tables (which we don't even modify btw). So don't bother trying to view your original ROM with the XDF unless your original ROM is 01G type.
Cheers,
Shiv

[Malt]

Shiv, I just got my ODB2 bluetooth reader for torque and was outside playing around with it. Some readings didn't look right on it so I plugged in the OFT. Long Term Fuel Trims were sitting at around 5.7% at idle. Is that normal? Completely stock intake with just a perrin panel filter.

[Shiv@Openflash]

Originally Posted by Malt

Shiv, I just got my ODB2 bluetooth reader for torque and was outside playing around with it. Some readings didn't look right on it so I plugged in the OFT. Long Term Fuel Trims were sitting at around 5.7% at idle. Is that normal? Completely stock intake with just a perrin panel filter.

Yes, that's certainly possible given the variance of ethanol content in E85. Keep in mind that long term fuel trims at idle don't necessarily reflect fuel trims during cruise and under load (which is more important). Also, we have not tested the E85 map on a car with stock headers. We will soon though...

[Malt]

Originally Posted by shiv@vishnu

Yes, that's certainly possible given the variance of ethanol content in E85. Keep in mind that long term fuel trims at idle don't necessarily reflect fuel trims during cruise and under load (which is more important). Also, we have not tested the E85 map on a car with stock headers. We will soon though...

I guess I should of been more clear. Borla UEL, Perrin over pipe, Perrin 3" catted front pipe, Perrin 3" resonated exhaust. Its just my intake that is stock. When I get done with some work around the house I'll take it out for a spin and see what the rates are at WOT

[Shiv@Openflash]

Originally Posted by Malt

I guess I should of been more clear. Borla UEL, Perrin over pipe, Perrin 3" catted front pipe, Perrin 3" resonated exhaust. Its just my intake that is stock. When I get done with some work around the house I'll take it out for a spin and see what the rates are at WOT

ah that makes more sense

[jeebus]

Originally Posted by shiv@vishnu

Yes, that's certainly possible given the variance of ethanol content in E85. Keep in mind that long term fuel trims at idle don't necessarily reflect fuel trims during cruise and under load (which is more important). Also, we have not tested the E85 map on a car with stock headers. We will soon though...

Now you do.

Mods: K&N filter, catless front-pipe (neither of which should affect the tune)

Prep: Drove with fuel light on as long as I could bear it. Seemed like forever. Still only took 11.2 gallons of e85 (damn you inaccurate gauge!!)

Status: After filling, drove ~1 mile very gingerly on the gas tune. Once I saw the fuel trims start to dance a bit I pulled over and flashed the e85 map. Started right up after the flash, let it idle for a minute, then drove off very slowly through some residential streets where I could keep the load, revs, and speed way down.

I watched the ST FT and LT FT very closely. They were definitely dancing around a bit for a few miles of this miserably slow driving. As the fuel trims got closer to zero, I started to increase loads a slight amount. I watched some more dancing trims but once those got closer to zero I increased loads a bit more. I ended up doing 10 miles of driving in total. I haven't fully revved out the car yet, so I can't say just how much peak power it has, however I could certainly feel a boost of torque in the midrange.

I'll give it some more time before I really dive in. The only thing I've noticed thus far is my fuel trims are jumping to around -17 on decel. Not sure if that will clear up on its own or if that's a result of my stock header's lack of flow.

[SloS14]

~50 miles on 1.34 Stg2 (Gasoline)

[1Cor10:23]

Could someone briefly explain what the "soft rev limiter feature" in 1.34 is? Thanks!

[jeebus]

Originally Posted by 1Cor10:23

Could someone briefly explain what the "soft rev limiter feature" in 1.34 is? Thanks!

Instead of it bouncing off the limiter like an angry child, it sits at redline and won't let you rev any further. This is done by pulling so much timing that the engine just can't rev.

[bakerr6]

Originally Posted by jeebus

Now you do.


I'll give it some more time before I really dive in. The only thing I've noticed thus far is my fuel trims are jumping to around -17 on decel. Not sure if that will clear up on its own or if that's a result of my stock header's lack of flow.

Some of it should be due to the variation in exhaust flow rate, but I would think that would be marginal.

To me, it would make more sense if it has to do with the different air temps, since e85 has a much higher cooling rate than regular gas.

[Shiv@Openflash]

I won't be concerned with LTFT on deccel or idle. Or even too concerned during cruise conditions either. It's LTFT under load (during open loop fuel control) that will have an effect on actual AFR.

my 2c,
Shiv

[jeebus]

Originally Posted by shiv@vishnu

I won't be concerned with LTFT on deccel or idle. Or even too concerned during cruise conditions either. It's LTFT under load (during open loop fuel control) that will have an effect on actual AFR.

my 2c,
Shiv

It seemed pretty good at load. I'll do some more tests later. What should the idle AFR be like?

[Shiv@Openflash]

Originally Posted by jeebus

It seemed pretty good at load. I'll do some more tests later. What should the idle AFR be like?

It should be mid 12s under full load.

[jeebus]

lol, so I just took a "coffee break" and did some wot pulls. Pulls hard as hell. Fuel trims were solid at 0 at wot. I did notice that decel trims are looking even worse...-25 was common. So it's running rich as hell then. Won't that throw a code eventually too?