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Originally Posted by 0xDEAD
(Post 7327582)
Get an auto Bryan :)
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So someone said the evo 1-3's used the 2G MAF in them. Does anyone know of the MAF scaling/MAF size that ECU used by any chance??
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Would you expect it to be different? Otherwise why wouldn't you just use the maf size from an Eclipse rom?
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Originally Posted by the_mork
(Post 7328574)
Would you expect it to be different? Otherwise why wouldn't you just use the maf size from an Eclipse rom?
MAF size isn't as much of my concern as is the scaling. Ideally, if someone was to install a 2G MAF inline with their evo8 MAF on their evo, and had a way to log the 2G maf, it could be mapped out perfectly. Trouble is....no one is going to go thru the trouble lol. Can you even see the MAF size and scaling in the 2G roms??? I haven't seen a DSMlink v3 ECU setup yet so I dont know what parameters are visible to the general public. |
Originally Posted by wreckleford
(Post 7326538)
This is the thread, but I didn't explain it as well as I thought. When I get home I can post it up. |
Originally Posted by Jack_of_Trades
(Post 7328726)
MAF size isn't as much of my concern as is the scaling. Ideally, if someone was to install a 2G MAF inline with their evo8 MAF on their evo, and had a way to log the 2G maf, it could be mapped out perfectly. Trouble is....no one is going to go thru the trouble lol. Can you even see the MAF size and scaling in the 2G roms??? I haven't seen a DSMlink v3 ECU setup yet so I dont know what parameters are visible to the general public.
http://www.dsmtuners.com/forums/tuni...shing-faq.html Download the 2055011 ROM and DEF. All the MAF Scaling, Smoothing, Adder, etc, have been found. The DSMLink 95 ECU and DSM 98 and 99 Flashable ECUs are totally different programming wise. Use maps from the 98/99 they are similar to the EVOs. Edit: The end of post #1, I have how to install a EVO MAF in a 2G ECU. You could do the opposite for a 2G MAF in a EVO ECU |
Originally Posted by Jack_of_Trades
(Post 7328900)
any luck with this?
It would be good if someone smarter than me could find the MAF adder for an 8 ROM so we wouldn't have to copensate in the MAF scaling table. |
Originally Posted by Ceddy
(Post 7328907)
Check out ->
http://www.dsmtuners.com/forums/tuni...shing-faq.html Download the 2055011 ROM and DEF. All the MAF Scaling, Smoothing, Adder, etc, have been found. The DSMLink 95 ECU and DSM 98 and 99 Flashable ECUs are totally different programming wise. Use maps from the 98/99 they are similar to the EVOs. Edit: The end of post #1, I have how to install a EVO MAF in a 2G ECU. You could do the opposite for a 2G MAF in a EVO ECU The funny thing is, the Evo scaling you have there (I assume it is from a V or IV) is different to the VIII scaling, but they use the same MAF. I am not sure if your 2G scaling is the same as what I have, but the adder and MAF size are the same. |
Originally Posted by Jack_of_Trades
(Post 7323206)
Yeah I actually had a friend give me his alldata password and I just figured it out before you posted. I gotta work on the MAF size/scaling for this 2G maf though. The second I give it gas it suffocates and dies.
Originally Posted by evonut270
(Post 7323589)
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Originally Posted by Evo_Kid
(Post 7330036)
Beat me to it
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Nice, they finally have the DSM flashable ECUs working.
Now, maybe I can sell my 99 GST ECU that I kept when I used DSMLink on my DSM. I'm pretty sure I still have it here in a box somewhere. Edit: Yep, still have my ECU...MD359402 |
This should be a DIRECT correlation from the 2G maf readings. This is how the ECU works (same as how it works for the boost control adder really):
The actual value the ECU uses is bigger than the table will allow, so we incorporate an 'adder' that simply gets added to the base number. So with the 2G MAF scaling, you take the number in the table and then add 64 to it. This gives you the value the ECU gives a crap about. Its the same thing for the Evo8 MAF scaling only it adds 140 to each value in the table. So I took the 2G maf scaling and added 64 to each to get the values the ECU 'wants' to see. Then I subtracted 140 from these values. So now when the ECU implements its adder of 140, it will get the same results as if we were able to change the MAF ADDER from 140 to 64 ourselves. Also, the MAF SIZE needs to be updated from 357.5 to 286.0 http://dsm-ezine.com/evom/2g_maf_sca..._maf_adder.bmp You can also try changing the Airflow/baro comensation tables and the MAF filtering. |
Originally Posted by Jack_of_Trades
(Post 7330380)
This should be a DIRECT correlation from the 2G maf readings. This is how the ECU works (same as how it works for the boost control adder really):
The actual value the ECU uses is bigger than the table will allow, so we incorporate an 'adder' that simplay gets added to the base number. So with the 2G MAF scaling, you take the number in the table and then add 64 to it. This gives you the value the ECU gives a crap about. Its the same thing for the Evo8 MAF scaling only it adds 140 to each value in the table. So I took the 2G maf scaling and added 64 to each to get the values the ECU 'wants' to see. Then I subtracted 140 from these values. So now when the ECU implements its adder of 140, it will get the same results as if we were able to change the MAF ADDER from 140 to 64 ourselves. Also, the MAF SIZE needs to be updated from 357.5 to 286.0 http://dsm-ezine.com/evom/2g_maf_sca..._maf_adder.bmp You can also try changing the Airflow/baro comensation tables and the MAF filtering. Yes, that's the same as I did. |
One thing you should be aware of:
The load limit and injector pulse width limit are directly related to MAF size, so with the 2G MAF, the load at which the limit comes in is reduced. For the 2G MAF, the load limit ends up being about 310 instead of 380 with an Evo8 MAF. If you are running a reasonably decent setup, you will hit the load limit quite easily. Fortunately John Banks has shown on here how to remove the limits. |
How do you remove the limits? Aside from putting in an extremely long timer value.
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