OFT Dead Spot 1000-1700

[Turdinator]

Originally Posted by Wayno

I think more likely because the load limits have been removed on C series roms. This never happens on other calibrations in OTS tunes because they're limited to about 0.9g/rev with stock load limits and thus reasonable AFR and positive ign adv.

I would bet good money all the people with this issue have C series roms.

These tables aren't defined in my 700G rom using the OTS v2.xx XMLs. How would I go about getting them added in?

[steve99]

Originally Posted by Turdinator

These tables aren't defined in my 700G rom using the OTS v2.xx XMLs. How would I go about getting them added in?

go to wayno post on e85 petrol tunes link in his signiture , grab his definition for 700G rom and you will be sorted

they did not max out the load limits on the g roms so you should be fine anyway.

if you use wayno tune and good maf scaling you will be even better

[Wayno]

Originally Posted by Turdinator

These tables aren't defined in my 700G rom using the OTS v2.xx XMLs. How would I go about getting them added in?

In my thread

[Kodename47]

Originally Posted by Turdinator

These tables aren't defined in my 700G rom using the OTS v2.xx XMLs. How would I go about getting them added in?

http://www.ft86club.com/forums/showp...0&postcount=23

[Turdinator]

Originally Posted by steve99

go to wayno post on e85 petrol tunes link in his signiture , grab his definition for 700G rom and you will be sorted

they did not max out the load limits on the g roms so you should be fine anyway.

if you use wayno tune and good maf scaling you will be even better

Thank you all for the quick replies.

I don't suffer from the dead spot mentioned in this thread but after flashing back to the stock ROM recently I noticed taking off from a stop was much easier and I was looking into why when I noticed my definitions were missing the above.

[trueno86power]

Hi guys! Got the same problem...

2015 Scion FR-S - Stock tune with EcuTek P0420 removal.

Injen intake (got it for really cheap for testing, no hate here please)
OEM headers with gutted cat
Nameless FP/OP combo

If I WOT in between 1200-1800 rpm the engine really want to die out. Because of the de-cat and the intake, not-that-nice noise are going out from the exhaust and intake.

For the one who have the problem, check your MAF g/s or voltage data. Just a quick look at mine:

I'm not saying it's the problem but it could be intake resonance that make the MAF freak out from the modified snorkel/aftermarket intake. My logs must be worst because of the "great design" of the Injen intake.

EDIT: Just for fun, before I'll do the logging for the intake rescalling I've try the @Shiv@Openflash fuel map and It really soften the problem! Thanks

[Kodename47]

Originally Posted by trueno86power

If I WOT in between 1200-1800 rpm the engine really want to die out. Because of the de-cat and the intake, not-that-nice noise are going out from the exhaust and intake. .

You shouldn't really do that in any gears other than 1st, maybe 2nd. It's not ideal to labour the engine at low revs.

Seeing those MAF readings I do wonder if load limits are an issue as well as the intake.

Moral for the story, don't go WOT at low RPM

[trueno86power]

Originally Posted by Kodename47

You shouldn't really do that in any gears other than 1st, maybe 2nd. It's not ideal to labour the engine at low revs.

Seeing those MAF readings I do wonder if load limits are an issue as well as the intake.

Moral for the story, don't go WOT at low RPM

Yeah I know it's not the perfect condiion, but in some situation it could happen...

You know the kind of "oh ok got just the time to pass" you floor it in low RPM range and the car just die -_-

[churchx]

Never had problem of 'car just die' with WOT@low rpms (on still stock car). Slow acceleration - yes, but 'die'? Of course i judge only by by hearing, that engine sounds normally from 1600 and up, but never saw any problems using low rpms (starting these rpms) at least while steady cruising at whichever the gear in. 1500 has noticeably different sound in upper gears, hence i always downshift, if required to go lower, but above - seems just fine to me.

[steve99]

Originally Posted by trueno86power

Hi guys! Got the same problem...

2015 Scion FR-S - Stock tune with EcuTek P0420 removal.

Injen intake (got it for really cheap for testing, no hate here please)
OEM headers with gutted cat
Nameless FP/OP combo

If I WOT in between 1200-1800 rpm the engine really want to die out. Because of the de-cat and the intake, not-that-nice noise are going out from the exhaust and intake.

For the one who have the problem, check your MAF g/s or voltage data. Just a quick look at mine: *Photo uploding*

I'm not saying it's the problem but it could be intake resonance that make the MAF freak out from the modified snorkel/aftermarket intake. My logs must be worst because of the "great design" of the Injen intake.

If Injen intake is unscaled your likely running high LTFT (like you would with most other aftermarket intakes)

log the fuel trims and AFR when you go wot at low rpm its likely going rearly rich

once you fix the maf scaling the problem will likely go away

[trueno86power]

Originally Posted by steve99

If Injen intake is unscaled your likely running high LTFT (like you would with most other aftermarket intakes)

log the fuel trims and AFR when you go wot at low rpm its likely going rearly rich

once you fix the maf scaling the problem will likely go away

I know that I've got to recale my maf, from now my LTFT is like at -5% but I got to take cupple of other ride. But from what I see, it's "physical" air resonance that cause the maf the freak out as you can see on my log.

But well I could be wrong I'm begening to play with my ECU

[steve99]

Originally Posted by trueno86power

I know that I've got to recale my maf, from now my LTFT is like at -5% but I got to take cupple of other ride. But from what I see, it's "physical" air resonance that cause the maf the freak out as you can see on my log.

But well I could be wrong I'm begening to play with my ECU

is the injen intake the one that moves the maf sensor very close to throttle body ? , if so your likely correct its caused by resonance/turbulance

[trueno86power]

Originally Posted by steve99

is the injen intake the one that moves the maf sensor very close to throttle body ? , if so your likely correct its caused by resonance/turbulance

Exactly ! The MAF is installed right before the throttle body.



With the Fuel map modification @Shiv@Openflash proposed it's really near perfect. In 1st gear WOT at 1500-1800 it's near perfect, in 2nd it only feel like a normal engine in 2nd gear in low rpm, 3rd and 4th same thing.

[Jrdad]

@Shiv@Openflash what if you experience this flat spot on the 93 stage 2 tune?