[7158sean]

Can someone here help me please! Please check our my log file and see the WOT at 5th gear. The log file were hold at 5th gear, it almost happen every time at high gear with WOT(no kick down) then limp mode. Is there anything wrong with fuel trim of bank1 and bank2? Map0 is totaly fine, does it happened to anyone? Any help will be appreciate.

tune: 1-V5
2-DP
3-AFE DCI
4-HKS spark plug
That's all I have in my car.

Please change data file1.txt to data file1.csv thanks
The last WOT hold at 5th gear is when the limp mode occur
Procede code 10738 10722

UPLOAD ANOTHER LOG, BUT IT'S 3-17 MAP2 WITH METH
A 3RD TO 4TH GEAR PULL FROM 100-200KM. ALSO CHANGE BACK TO .CSV THANKS

[marv85]

Originally Posted by 7158sean

Can someone here help me please! Please check our my log file and see the WOT at 5th gear. The log file were hold at 5th gear, it almost happen every time at high gear with WOT(no kick down) then limp mode. Is there anything wrong with fuel trim of bank1 and bank2? Map0 is totaly fine, does it happened to anyone? Any help will be appreciate.

tune: 1-V5
2-DP
3-AFE DCI
4-HKS spark plug
That's all I have in my car.

you haven't attached anything (change the extension to txt or something random)

[Jeff@TopGearSolutions]

Post up a screen shot. BTW it's not good to load up the engine in 5th and 6th gear at WOT unless you are at high RPM. I'm not sure if those plugs are good for this car, we always recommend using OEM plugs as others seem to cause problems.

[7158sean]

Originally Posted by Jeff@topgearsolutions

Post up a screen shot. BTW it's not good to load up the engine in 5th and 6th gear at WOT unless you are at high RPM. I'm not sure if those plugs are good for this car, we always recommend using OEM plugs as others seem to cause problems.

I know it's bad to do that at 5th or 6th gear but I just want to make the limp mode happen to do the log. Even when I drive in D and I just want to pass a car without kickdown then sometimes limp mode happened.

PS: I have upload the file

[Syndicategt]

Without seeing logs or fault codes it's just a guessing game. However, I'd be willing to guess it's the LPFP or HPFP not being able to keep up with the demands of going WOT in 5th from a low RPM.

[Bme30]

Post some logs. I had a similar issue in 5th and 6th with the new maps. I was loosing fuel pressure like a fraction of a psi and the procede saved my car. With the (non-aggressive maps) I have zero issues.

[7158sean]

Originally Posted by Bme30

Post some logs. I had a similar issue in 5th and 6th with the new maps. I was loosing fuel pressure like a fraction of a psi and the procede saved my car. With the (non-aggressive maps) I have zero issues.

The log file is update, thanks.

[pinky_and_me]

That was happening to me with an earlier version of the aggressive beta maps, throwing a fuel rail pressure code, updated to the latest and it was gone.

[Bme30]

Originally Posted by 7158sean

The log file is update, thanks.

Cant view the log on my phone. Will take a look tomorrow to see how it compairs to my logs with similar issues.

[Bme30]

Originally Posted by pinky_and_me

That was happening to me with an earlier version of the aggressive beta maps, throwing a fuel rail pressure code, updated to the latest and it was gone.

I had that code plus others. But might give the new aggressive maps another try. Maybe all the kinks are finally worked out. But all the codes were fuel related.

[7158sean]

Originally Posted by Bme30

Cant view the log on my phone. Will take a look tomorrow to see how it compairs to my logs with similar issues.

You can see the log where WOT(78%) drop down to 50% then 30%, it's where limp mode start but no code was show.

the fuel trim bank1 and bank2 are very different from each other and I am not sure is it normal? when bank2 is always lower than bank1

I had fuel rail pressure code too but not every time and again Map0 is totally fine

[chiefsotos]

Same issue here when i wot in 4th gear from low rpm with the new aggressive maps.
I just keep the rev high enough and then wot to solve the problem.
But with the new maps iwas put 3 new injectors so i can't unterstand what exactly is the problem.

[Bme30]

Originally Posted by 7158sean

You can see the log where WOT(78%) drop down to 50% then 30%, it's where limp mode start but no code was show.

the fuel trim bank1 and bank2 are very different from each other and I am not sure is it normal? when bank2 is always lower than bank1

I had fuel rail pressure code too but not every time and again Map0 is totally fine

You need to post your log in a screen shot. I'm having trouble trying to view the log.
Not only that there are many more well educated people that can take a look at this and offer some input from similar issues that they have come across in the past.

[Kalud]

Originally Posted by 7158sean

You can see the log where WOT(78%) drop down to 50% then 30%, it's where limp mode start but no code was show.

the fuel trim bank1 and bank2 are very different from each other and I am not sure is it normal? when bank2 is always lower than bank1

I had fuel rail pressure code too but not every time and again Map0 is totally fine

Send the log again, just rename the .csv in .txt and re-attach. Its unusable in word format and a pain to re-convert in csv.

Not throwing codes immediately is normal it takes some more seconds to register, if you had left the log continue they would appear a bit later. Knowing the exact codes would be useful. You _might_ be over boosting while lugging 5th gear from 2000 rpm. Real CSV + codes thrown would help here to diagnose further.

[Kalud]

Finally decided to re-create the csv from it, not really funny but here it is:

There is some serious AFR imbalance at the beginning and some knock activity for such non-crazy boost figures. What octane number? Still, you should down-shift to at least 4th when running at 2000 rpm in 5th.

I suggest you do a full 3rd gear pull from 3000 rpm to redline going into 4th to get a full picture of how its running.

Can you also post your Map settings (User Maps -> User Adjustable Parameters)

[TurboBimmer]

Which codes do you get? I have the same problem, limp mode during WOT in 6th and I just got the HPFP and spark plugs replaced. Do you notice some kind of small, engine-induced vibrations when accelerating strongly in gears 4 to 6?

[Jeff@TopGearSolutions]

If this was a mazdaspeed 3 we would have a few more threads of blown engines. Loading up in high gears at low RPM is a ticking time bomb, luckily this motor is a lot more stout.

[TurboBimmer]

Originally Posted by Jeff@topgearsolutions

If this was a mazdaspeed 3 we would have a few more threads of blown engines. Loading up in high gears at low RPM is a ticking time bomb, luckily this motor is a lot more stout.

Common scenario: cruising on the highway at 80 mph in 6th gear. Then I want to overtake a few cars, stomp on it and I would get a limp mode at around 110-120 mph mostly. So you're saying this is normal? Although it doesn't happen in stock mapping, with less power?

[Jeff@TopGearSolutions]

Originally Posted by Autobahn335i

Common scenario: cruising on the highway at 80 mph in 6th gear. Then I want to overtake a few cars, stomp on it and I would get a limp mode at around 110-120 mph mostly. So you're saying this is normal? Although it doesn't happen in stock mapping, with less power?

Sorry for the confusion, no it doesnt sound normal necessarily but normally this car only makes about 8 PSI stock. What I was speaking about is how bad it is for the engine to load up high boost in low rpm in high gear. What happens is you create a large amount of boost and usually boost spiking. There is a strong load on the engine which in turn creates a lot heat. As the engine is lugging in that low RPM high load range the pistons can start moving horizontally in the engine. It's just really not good for an engine. Imagine going up a hill with a 10 speed bike in 10th gear, its pretty hard on your legs right?

The best way to to accelerate is in the proper gear, in most cases I would have dropped to 4th or 5th and maybe eased in about 5 psi. If I pass anyone on the highway it doesnt take much speed in this country, another 5-8 MPH is all you need which can be done with about 5 psi from any gear, instead of WOT.

In our country we can't really get up to 110-120 legally so I doubt many people can replicate it. Usually if they were to replicate those speeds they would drop down to the best gear for the most power (i.e. 3rd and 4th).

The reason I brought up the mazdaspeed 3 is because that engine is notorious for blowing on high engine load, low RPM scenario. It cant combat the excess load torque and boost. I think the rods let go if I recal correctly.

Its a lot more strenuous on an engine to perform those tasks believe it or not, compared to high HP, High RPM.

My best advice is to simply adjust driving habits, but I cant say I had a problem on my personal car but I've never done WOT in 5th or 6th unless I was already at high RPM. I would imagine if I did try, which I wont, the car would respond just like everyone elses. At stock boost levels I'm sure it can handle it.

I only do WOT above 3000 RPM and again never in 5th or 6th.

[7158sean]

octane number in Taiwan is 98, I am not sure what is it in other country!

[7158sean]

Originally Posted by Autobahn335i

Which codes do you get? I have the same problem, limp mode during WOT in 6th and I just got the HPFP and spark plugs replaced. Do you notice some kind of small, engine-induced vibrations when accelerating strongly in gears 4 to 6?

I got 10738 and 10722 but not every time

no I feel no vibrations

[Kalud]

Originally Posted by 7158sean

octane number in Taiwan is 98, I am not sure what is it in other country!

From wikipedia, Taiwan: 92 RON, 95 RON and 98 RON are widely available at gas stations in Taiwan.

98 RON is 93-94 AKI, so you should be good.