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phoreman

Quest for tuning

7 posts in this topic

A great thanks goes out to those who have helped and in advance to those that will.

Since my nosedive into the world of ECUs but more importantly the Smart Fortwo(s).

The tools that are currently being used are a little janky.... waiting for the better ones before continuing.

 

Since playing around:

1. purchased a second car 06' Smart Fortwo Passion (not running)

     1.a discovered that a seized alternator would stop the engine from starting. Sprayed down w/ a creeping agent and rocked back and forth with a pipe wrench.

     1.b catching wind of a tuner w/ promises adding half the current HP/Torque and it costing $300 it was a no brainer. There was a considerable difference in performance when the  Malone tune was applied.

      1.c thinking mechanical changes would make noticeable differences isn't that beneficial and if anything puts the car into limp mode. Adjusting the boost via the gate, straight pipped and the easiest thing of all better fuel only threw it into LIMP... ok i cranked back on the gate. 

2. knowing and using HEX editors, diving into file comparisons is where it started. Please take this advice who start... patience... know what your looking at  be for you start this method. Looking at other BIN files there are considerable differences depending on the software versions, or at least this is what it is pointing to.

3. with advice of others they advised the need of the right tools, software and misc equipment is a must, so clawing back a reset was required. As usual who really listens, I didn't and well what a mistake, or was it.

4. Played around with a bin increasing boost, rail pressure, injector rates, really anything that can be changed was changed.... Wrong idea but educational. made lots of smoke under load and at full throttle. Well it came in handy while doing 0-100KM pulls cause on the way home a ass hat in a Honda with fart can pulled out in front of me, and not a favourable distance. Going around him, he pulled up behind me not even able to see his frontend he was way up there. Seeing his windows were down... I hit full throttle, he wasn't to pleased but did back off.

5. Another tune was made by Ecu Solutions Developer in the UK. Over boost issue is gone, EGR is flat but not removed from the ECU (emulator or still plugged into the valve). Lots of torque and think its maxed out. Under load it rolls coal and pulls well but coming to stop after a hard run, you step on the throttle heavy the car stalls and throws P0088. Once the car sits for a while, it will start but will not start right away, and thats even if you clear the code right away, you have to wait. please see attached photo.

 

Thoughts, opinions, hints and etc welcome ... please

WhatsApp Image 2020-04-29 at 2.09.19 PM.jpeg

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Ok, so like many others I cannot keep to myself.

Since there are no tools yet, may as well play with what is available.

Please correct me if wrong, its a learning curve.

 

Everything I will be doing will be based on the included bin file.

 

If it isn't broke, don't fix it.. .thats what they say, how else do you expect us to learn.

addresses.txt

OEM-06-Smart.rar

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12 hours ago, Smarty450 said:

Is there a smoke map that limits IQ ?

I'm sure there is, my experience is nullx2. it is something that is being looked for.

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We  may need to develop a simple tuning application specific to the smart once we have all the tables figured out. 

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I've had a small issue with 3 addresses being a little to aggressive.

Each one was related to injection throttle and all three were scaled back.

Before the BIN would "Under load it rolls coal and pulls well but coming to stop after a hard run, you step on the throttle heavy the car stalls and throws P0088"

I have taken the care for a couple runs pushed 0 to (x)km without the system throwing code and stalling.

 

You can put the boost manually at the gate well past its potential (maybe a larger turbo, or super charger even)

 

Running the BIN below on my 06'.

800CDI Stage1 Egr_OFF VmaxOFF TprexLim_3000hpa.MOD

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Adjusted limits from stock 1750-2500hpa to 3000hpa flat you can find it at the address 16bit@71400.

The adjustment is single row by 15 and assume the variable is Engine speed (RPM).

 

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