ZCP DME flash Semi-Successful on Non-ZCP F8X

[packetpilot]

The last couple frames above show the "civic m4" seatback, in case there's any question as to authenticity. Also, not my car.

1) I updated my ECUs with E-SYS and the latest psdzdata (58.3). Still have some issues to work out now that I finally have ISTA-D (e.g. front indicators on LED headlights not working).

2) I edited my FA to include 7MA.

3) Ran swfl on the DME afterwards

4) Successfully obtained burble, BUT

5) Drivetrain malfunction: boost is practically gone, throttle command is significantly limited beyond initial acceleration from standstill.

Trying to find the wrinkle that's needed for ironing; hopeful that ISTA-D will help, but hoping to get some help from those more knowledgeable than me.

Lessons learned:
- Burble tunes that cost money may be unnecessary.
- ECU updates aren't that hurrd, don't be scurrd. (but do be if you don't have a power supply.)
- ISTA-D is a prerequisite IMHO since "Transmitter" doesn't unlock the airbag (at least for me) as it should nor can it reprogram the LED headlights.

Who else wants to take the risk (on someone else's car, of course) and flash their DME and help me track this down? (...or help me track it down via slack?)

edit: godda*n U2B tag, why is it still here if it doesn't work?

[DD88]

Sounds different than ZCP (might be the recording). Is it a real "ZCP tune" or the forced burbles that other tuners have?

[packetpilot]

Originally Posted by DD88

Sounds different than ZCP (might be the recording). Is it a real "ZCP tune" or the forced burbles that other tuners have?

Reading the post is highly recommended. :-)

[ferrarif1]

Nice work, if I have time this weekend I will experiment some more to understand the root cause of the drivetrain malfunction.

[DD88]

Originally Posted by thisisdave

Reading the post is highly recommended. :-)

I read the post as well as the "Competition Package coding" thread earlier, but I just couldn't recognize the tone/sound of the burbles, that's why I asked

[packetpilot]

Originally Posted by DD88

I read the post as well as the "Competition Package coding" thread earlier, but I just couldn't recognize the tone/sound of the burbles, that's why I asked

Got it. For clarity, it's strictly E-SYS and the latest psdzdata, so no non-BMW-sanctioned software is on the car, no aftermarket anything involved here (except my exhaust, which is an AA midpipe + Dinan rear).

[DD88]

Originally Posted by thisisdave

Got it. For clarity, it's strictly E-SYS and the latest psdzdata, so no non-BMW-sanctioned software is on the car, no aftermarket anything involved here (except my exhaust, which is an AA midpipe + Dinan rear).

OK, thanks for the clarification and nice work!

[packetpilot]

Originally Posted by DD88

OK, thanks for the clarification and nice work!

...but I'll kindly ignore the "nice work" comment until I can get the ///M back in my car. Limp mode is a drag... but the burbles make driving slowly a bit more tolerable.

[terahertz]

I can't help much until I get my PSU built, but I dug around in ISTA/D and found that if you're replacing an S55 DME, you need to perform a setting of the fuel injector flow.

I don't know if flashing the DME wipes that data out? Maybe ferrarif1 might know since it sounds like he flashed to CP and flashed back to stock.

Injection quantity compensation:
If the DME control unit has been replaced, it will also be necessary to carry out adjustment of the injectors!
Injection quantity compensation is carried out with the aid of so-called adjustment values.
The adjustment value is printed with three digits - depending on the version - on the injector body.
The adjustment values must be stored in the new control unit!
If injector quantity compensation is not carried out, the engine may run roughly or fail to start.
Read off the adjustment values and enter according to the installation location (cylinder) of the injectors:
- Connect BMW diagnosis system
- Identify vehicle
- Select ”Function selection”
- Select ”Service functions”
- Select ”Engine electronics”
- Select ”Adjustment function”
- Select ”Adjust injectors”
- Select ”Test plan”
- The adjustment value must be entered for each cylinder.

Edit: Rheingold has conflicting information on another S55 page.

Diagnosis instructions
Note!

The new solenoid-operated valve injectors no longer require injection quantity compensation.

The DME learns the adjustment value automatically. An adjustment value is not printed on the solenoid valve injector.

[Mandi90TT]

Interesting research, good luck on working it out!

[ferrarif1]

Originally Posted by terahertz

I can't help much until I get my PSU built, but I dug around in ISTA/D and found that if you're replacing an S55 DME, you need to perform a setting of the fuel injector flow.

I don't know if flashing the DME wipes that data out? Maybe ferrarif1 might know since it sounds like he flashed to CP and flashed back to stock.

Injection quantity compensation:
If the DME control unit has been replaced, it will also be necessary to carry out adjustment of the injectors!
Injection quantity compensation is carried out with the aid of so-called adjustment values.
The adjustment value is printed with three digits - depending on the version - on the injector body.
The adjustment values must be stored in the new control unit!
If injector quantity compensation is not carried out, the engine may run roughly or fail to start.
Read off the adjustment values and enter according to the installation location (cylinder) of the injectors:
- Connect BMW diagnosis system
- Identify vehicle
- Select ”Function selection”
- Select ”Service functions”
- Select ”Engine electronics”
- Select ”Adjustment function”
- Select ”Adjust injectors”
- Select ”Test plan”
- The adjustment value must be entered for each cylinder.

I did not try a full flash of the DME which could wipe these values but I expect the injector value to be stored in protected memory so a dealer flash wold not inadvertently wipe values. Honestly, I don't know how BMW stores the injector values in the DME.

I swapped a SWFL file with the ZCP one. This is the same change that thisisdave made.

[packetpilot]

Originally Posted by ferrarif1

I did not try a full flash of the DME which could wipe these values but I expect the injector value to be stored in protected memory so a dealer flash wold not inadvertently wipe values. Honestly, I don't know how BMW stores the injector values in the DME.

I swapped a SWFL file with the ZCP one. This is the same change that thisisdave made.

Indeed it's what I did. swfl back to non-ZCP map removed the malfunction.

Injector value recon is a good place to start. Still getting Rheingold set up and ready for first execution; perhaps I can read the values from that application, but I worry I'll need ISTA-P (as opposed to -D) to reprogram the values if necessary.

Another thought is whether the TAL-Processing options of set ECU to coding mode and/or set ECU to programming mode will make a difference here... perhaps ensuring both are unchecked is the safe bet coming from a normal map to a ZCP map.

[ferrarif1]

After changing the VO to include 7FA and 7MN with a build date of 0316 then swapping the SWFL to ZCP and connecting ISTA/P, ISTA/P complains the wrong DME is in the car and wants to REMOVE it:

[terahertz]

Originally Posted by ferrarif1

After changing the VO to include 7FA and 7MN with a build date of 0316 then swapping the SWFL to ZCP and connecting ISTA/P, ISTA/P complains the wrong DME is in the car and wants to REMOVE it:

Interesting that it complains about the VO, when you already changed the VO. Wonder what's missing. Would Rheingold version matter? Maybe it doesn't know about the CP?

[ferrarif1]

Originally Posted by terahertz

Interesting that it complains about the VO, when you already changed the VO. Wonder what's missing. Would Rheingold version matter? Maybe it doesn't know about the CP?

Using the latest ISTA/P 3.58 and PSDZDATA 58.3. SW definitely knows about CP as 7MA and 7MN are listed in the VO summary with the correct description on the summary page before you get this error.

[packetpilot]

Rheingold is in action, airbag and window initialization and headlights are back in order.

DME error for me is as follows:

[terahertz]

Fault description The diagnosis monitors enabling of a data status via SWT enabling code.

Malfunction monitoring conditions

The fault is detected when a data status to be enabled has been programmed.

Condition for fault identification Voltage precondition

- None

Temperature condition

- None

Time condition

- None

Other preconditions

- Control unit in after-run

Terminal status

- Terminal 15



Condition for fault memory entry The fault is entered immediately.

Action in service - Enabled DME data with enabling code

- Reprogram DME enabling code

- Program DME correct data without enabling requirement

Fault effect and breakdown warning - Output limit through enabling not being provided

Driver information Engine warning light

Check Control message: None

Service instruction - none

What is SWT? Is that the same as an FSC code?

[terahertz]

Aww man. It looks like it might be FSC code enabled.

SWT = FSC code

http://www.e90post.com/forums/attach...8&d=1275791839

[packetpilot]

Originally Posted by terahertz

Aww man. It looks like it might be FSC code enabled.

SWT = FSC code

http://www.e90post.com/forums/attach...8&d=1275791839

Well then, I wonder how much a "zcp dme retrofit" would cost from a BMW dealership if there was no shop time at all involved other than loading an FSC code...

maybe I do need to figure out how to harness some HPC cores for brute-forcing after all...

[te37]

I wish I had something informative to say, but if you eliminated the drivetrain malfunction would this coding also give you the slight hp bump?

[ferrarif1]

Originally Posted by thisisdave

Well then, I wonder how much a "zcp dme retrofit" would cost from a BMW dealership if there was no shop time at all involved other than loading an FSC code...

maybe I do need to figure out how to harness some HPC cores for brute-forcing after all...

We may need to pull in shawnsheridan

I can enable retrofits in ISTA/P with FSC codes but there is no "retrofit ZCP DME" choice.

Sounds like one of my weekend projects is to learn about FSC

[packetpilot]

Originally Posted by ferrarif1

We may need to pull in shawnsheridan

I can enable retrofits in ISTA/P with FSC codes but there is no "retrofit ZCP DME" choice.

Sounds like one of my weekend projects is to learn about FSC

Still trying to get my hands on ISTA/P, but I'm wondering if I already have the "ingredients" with a full psdzdata directory and ISTA/D...

Originally Posted by te37

I wish I had something informative to say, but if you eliminated the drivetrain malfunction would this coding also give you the slight hp bump?

Yes.