M4.3 to M 4.4: Really that simple?

[erikv11]

... Actually, orange-tops are what the VS 607/608's have as default. . At least that's what's there when I've gone into them. I've had to change the values for the whites/blues. ...

OK, you've got different files than the 607rev5b I downloaded a couple years ago. Good to know this has been monkeyed with.

Not a wise "update" to the baseline file considering that no HPT/m4.4 vehicle ever shipped with orange injectors. Just as any unmodified m4.4 (non-R) HPT ECU will be set up for whites.

Anyway the take-home is check the injector values, both locations, to match what you have on the car.

[Chuck W]

OK, you've got different files than the 607rev5b I downloaded a couple years ago. Good to know this has been monkeyed with.

Not a wise "update" to the baseline file considering that no HPT/m4.4 vehicle ever shipped with orange injectors. Just as any unmodified m4.4 (non-R) HPT ECU will be set up for whites.

Anyway the take-home is check the injector values, both locations, to match what you have on the car.

I think maybe they were changed to make the orange-tops the baseline, as these files were intended to be drop-ins for the M4.3 HPT cars, which had the orange-tops standard.
I dunno, I just know the default values matched those for the or-tops on the Wiki, but I'm pretty sure I also have the "rev5b" files.

[RickHaleParker]

If you can find 0 261 203 629 which is loaded on a M 4.3 it would be a perfect match for the engine a 16T .

0 261 203 629 is the Europe 1997 - 1997 850R software and it is mapped for a B5234T4, 16T turbo and Europe emissions.
0 261 203 628 is the North America 1997 - 1997 850R software mapped for a B5234T4, 16T turbo and North America emissions.

The 628 BIN is in the Motronic Suite Bins it would be set up for a different emissions then the 629. You would need to edit the BIN or install the North American emissions equipment.

[Geevs]

HI all, sorry to bump up an old thread. I'm just getting started on M4.4 tuning for my Canadian model 1996 850R with factory M59 5-speed, 16T, white injectors and B5234T4 engine. I have confirmed my factory ECU is M4.3 using Vol-FCR.

From the M4.4 Wiki, I downloaded the 608 bins which seem like the perfect match for my car's specs. But what is the difference between rev_5b and rev_6 bins? I've also downloaded the software AC mod to apply to the bin.

My car doesn't come with a rear O2. Can this be disabled? What other diagnostic features should be disabled?

Thanks!

[Chuck W]

Use the rev_5 stuff, and yes you will need to do the "AC Mod".

I delete the rear O2 and the intake air sensors. Make sure you disable them on both banks.

Verify the injector values, as well.

[Geevs]

Thanks Chuck. OK, will use rev_5b. What's the difference between the two? I noticed the rev_6 has launch control. Is rev_6 the latest version?

How do I delete the rear O2. I don't see it under the Disable Diagnostics section.

[Chuck W]

Thanks Chuck. OK, will use rev_5b. What's the difference between the two? I noticed the rev_6 has launch control. Is rev_6 the latest version?

How do I delete the rear O2. I don't see it under the Disable Diagnostics section.

From the thread.

As I recall the rev6 was experimental and I would not recommend starting with that one. Go with rev5b; it doesn't have any perf mods, but has the mature logging routine.

The Rear O2 stuff is under "Emissions"

[Geevs]

Thanks Chuck. I found the thread you mentioned above. It's at: http://volvospeed.com/vs_forum/topic/17 ... -question/

At the bottom of the thread, Aaron says rev_5b and rev_6 are the same but rev_6 has launch control. Sorry for the noob question, but what does this do?

I'm disabling the diagnostics bits - does 0 mean on/enabled, and 1 mean off/disabled?

[erikv11]

In TunerPro, 1 is on/enabled and 0 is off/disabled.

[Geevs]

Thanks Erik.

So all the "diagnostic disables" are disabled by default? When I look at the values in both rev_5b.xdf and rev_6.xdf - they are all set to 0. Also the 3 "rear cat checK" scalars in "emissions" are also disabled by default, from what I see in both .xdf files.

That said, I guess there's nothing more I have to do aside from the AC mod and setting the injector values to white injectors. Is this correct?