Cold accel enrichment
#1
Cold accel enrichment
Have problems with cold accel, it become difficult to take off, especially when uphill. Huge boging when stepping little bit faster on throttle.
On fic 750cc (long trims up to around 5%), adjusted "Sync Load Accel Comp vs. RPM enrichment" little bit reduced, to be spon on when warmed up.
Tried to add or reduce lower temp part of "Accel Enrich Base vs Engine Temp" table, but still harder or softer bogs after throttle, sometimes smell for unburn ethanol.
May i try to adjust "Async Accel vs Coolant Temp Adder (Main)" table?
96530006 ecu
On fic 750cc (long trims up to around 5%), adjusted "Sync Load Accel Comp vs. RPM enrichment" little bit reduced, to be spon on when warmed up.
Tried to add or reduce lower temp part of "Accel Enrich Base vs Engine Temp" table, but still harder or softer bogs after throttle, sometimes smell for unburn ethanol.
May i try to adjust "Async Accel vs Coolant Temp Adder (Main)" table?
96530006 ecu
Last edited by curamrdan; Sep 20, 2013 at 04:06 PM.
#2
Quick question, why such a small injector for E85? My FIC 950cc's are scaled to 622, so I can only assume that those are scaled lower than stock.
I would suggest letting the car warm up a bit more before driving. What are your other mods?
I would suggest letting the car warm up a bit more before driving. What are your other mods?
#3
Car is almost stock. I runned on stock injectors(zeroed boostcontrol) for some time before bigger 750cc get, problem was little better(but im not sure).
Want to drive car like any other, not much warming time, then 10-20sec.
Want to drive car like any other, not much warming time, then 10-20sec.
#4
I am not familiar with that computer, can you list the various options you have for adding acceleration enrichment?
most computers have a global enrichment for coolant temperature. many of them also include a special number just for coolant TPS enrich. as well.
Also make sure to include any delta TPS (rate of tps movement) adjustment for acceleration enrichment. In other words, if you are giving a significant sudden pressure drop in the intake manifold, your computer should know the difference between getting there suddenly from a large TPS increment or getting there gradually.
most computers have a global enrichment for coolant temperature. many of them also include a special number just for coolant TPS enrich. as well.
Also make sure to include any delta TPS (rate of tps movement) adjustment for acceleration enrichment. In other words, if you are giving a significant sudden pressure drop in the intake manifold, your computer should know the difference between getting there suddenly from a large TPS increment or getting there gradually.
#5
I noted two know tables which may affect enrich vs coolant(which i know). There is many TPS vs rpm tables and others TPS vs something.
Maybe i must change non colant tables too, due difference of E85 and petrol, i dont know, But i noted, on warmed engine is accel spot on(no dip in AFR, car react immediately). Therefore im asking.
Maybe i must change non colant tables too, due difference of E85 and petrol, i dont know, But i noted, on warmed engine is accel spot on(no dip in AFR, car react immediately). Therefore im asking.
#6
Tried add bit in Async Accel vs Coolant, nothing changed.
I feel progression, when i dip throttle more, larger bog happend(like no accel at all, but have accel PW spikes in logs).
Nobody have this problem with E85 ??
I feel progression, when i dip throttle more, larger bog happend(like no accel at all, but have accel PW spikes in logs).
Nobody have this problem with E85 ??
#7
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cold running with e85 is a well known issue. for the first engine start of the day, the simple solution is to wait until the needle on the temperature gauge has move a little before driving. if you need to drive immediately, this requires raising the closed loop set point to ~40C and then increasing the maf scaling vs coolant temperature table.
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