Flash TUNE - Dyno Inside - Help

[BadGTR]

Originally Posted by epiphanyray

I understand that if there is hardware issue, Flash tune will not correct this. But logs show I am pretty close to Full boost (around 22). Chargepipes area is sealed correctly and has been inspected. (I guess I can do a boost leak, but again, log shows car is getting up to boost).

If your hitting 22#s of boost, your on target for the tune. Your down on power because you are LEAN. You need FUEL. Your driving a ticking time bomb....tick..tick...tick....tick.....tick...
..

[epiphanyray]

Originally Posted by BadGTR

If your hitting 22#s of boost, your on target for the tune. Your down on power because you are LEAN. You need FUEL. Your driving a ticking time bomb....tick..tick...tick....tick.....tick...
..

Can this lean issue be fixed via the flash tune/adjustments?

[epiphanyray]

Originally Posted by kevn23

Can you go back to the stock tune and redyno?

I will ask them to reflash back to Backup stock tune.

[BadGTR]

Originally Posted by epiphanyray

Can this lean issue be fixed via the flash tune/adjustments?

Sounds like a tuning issue. Not sure how much the computers adapt when you were running meth. But injecting meth us richening up the tune. Maybe the computer adapted and commanded less fuel. Then you went off meth and the tune is off. Nevertheless, do not beat on the car. Get the tune figured out.

[epiphanyray]

Originally Posted by BadGTR

Sounds like a tuning issue. Not sure how much the computers adapt when you were running meth. But injecting meth us richening up the tune. Maybe the computer adapted and commanded less fuel. Then you went off meth and the tune is off. Nevertheless, do not beat on the car. Get the tune figured out.

thanks I will talk to them and have them tweak.

If anyone wants to give me any other ideas of things I should check, please let me know. Regarding adaptability, I NEVER run meth. I had it running maybe a month ago, but it is ALWAYS off. So technically It should be adapting to non-meth usage.

[apexlocator]

If you've ruled out any hardware issues, then you should look at the tune, and I agree with badgtr, don't drive it for now. Yes you can adjust AFR via flash tune; Alex leaned out my AF a tad the other day.

[BPMSport]

I would not drive that car in boost until this is resolved. If wastegate duty cycle is 99%, then it's not making the boost the ECU is targeting. How much boost is it actually making?

This still should not make the air fuels dangerously lean.

Go back to stock and go from there.

Hard to look at log on phone - but it should have RPM logged - doesn't look like it from the quick look I took.

[epiphanyray]

Originally Posted by Mike Benvo

I would not drive that car in boost until this is resolved. If wastegate duty cycle is 99%, then it's not making the boost the ECU is targeting. How much boost is it actually making?

This still should not make the air fuels dangerously lean.

Go back to stock and go from there.

Hard to look at log on phone - but it should have RPM logged - doesn't look like it from the quick look I took.

Hi Mike, thanks for chiming in. The rpm is definitely on the log - its all the way to the right.

There is a column called "boost actual" and peak is a value of 2440 at 6100 rpm. I would very much appreciate your input once you have a larger screen to view values in log.

Tuner company got back to me last night and sent me a different tune in order to monitor how car responds to this different version. Depending on those results he told me he will update firmware on my car to latest version considering the firmware its currently on has some glitches (might be thr first version from bmw).

Will keep you guys posted.

Do you guys think i should go back to oem chargepipes?

Keep the feedback coming!

[allmotor_2000]

A dyno isn't a log - get a JB4 or INPA and log everything. RPM, targets, actual, fuel trims, fuel pressure, timing, etc etc

[apexlocator]

I've been using an OBDlink MX Bluetooth OBD2 module with Android app Torque pro to log IAT, boost pressure, RPM, speed. It can also log timing, fuel trims, fuel pressure, etc. Probably not as comprehensive as a JB4, but it does log in realtime.

[epiphanyray]

Originally Posted by allmotor_2000

A dyno isn't a log - get a JB4 or INPA and log everything. RPM, targets, actual, fuel trims, fuel pressure, timing, etc etc

Thanks, yes, I am logging all that information and plenty more. My tuner has provided me the software to do all logging necessary. This is how I report back. Usually after flashing the car, I do a couple pulls from 2500rpm-7000rpm in Third gear. I get back to him with the values in CSV.

This is the kind of CSV I get with the datalog

[epiphanyray]

Originally Posted by apexlocator

I've been using an OBDlink MX Bluetooth OBD2 module with Android app Torque pro to log IAT, boost pressure, RPM, speed. It can also log timing, fuel trims, fuel pressure, etc. Probably not as comprehensive as a JB4, but it does log in realtime.

I have torque pro, and will do this as well. I have only used it to monitor IAT. Will try creating a log with all those values as well.

thanks

[epiphanyray]

So I just flashed the car with new tune to see how the car reacts and will send tuner logs tonight once I do maybe 2-3 pulls from Third Gear.

Will report back.

[TrevorM3]

lol, g, i wonder whose tune this is lmao

[josec70]

Originally Posted by TrevorM3

lol, g, i wonder whose tune this is lmao

Doesn't appear we're going to find out.

[Msizzle]

this situation seems strange, i would think the tuner would tell you to immediately stop driving the car until the issue was sorted out.

[Lerxst M4]

Good luck, OP

[epiphanyray]

Thanks guys, Im flashing back to stock today and see how the car performs. I will do a few pulls and create a log to see how the car is doing. will report back.

[TrevorM3]

Originally Posted by josec70

Doesn't appear we're going to find out.

well BPM already chimed in, so that leaves one more popular tuner.

[josec70]

Originally Posted by TrevorM3

well BPM already chimed in, so that leaves one more popular tuner.

Yeah, was thinking the same thing.

[BPMSport]

I would consult with your tuner and follow their advice. Would not drive the car in boost as I said before. Log with a bone stock file and send it to me - I'm happy to take a look. You should see the Wastegate duty cycle drop into the 50's with the stock tune if everything is working properly in terms of the turbos/wastegate. Lean under boost like that is a recipe for disaster.

[allmotor_2000]

Originally Posted by Mike Benvo

I would consult with your tuner and follow their advice. Would not drive the car in boost as I said before. Log with a bone stock file and send it to me - I'm happy to take a look. You should see the Wastegate duty cycle drop into the 50's with the stock tune if everything is working properly in terms of the turbos/wastegate. Lean under boost like that is a recipe for disaster.

^^ What he said....