no, 2500 and 7000rpm...

 

As I said before, if you default values for enable/disable ARE NOT 2500/7000 then the XML is wrong and you should NOT continue..

 

My stock values are 2000 and 7000 (i.e 80 and 224). I change the disable value to 7500 to avoid the jump in IPW at 7000. What I am asking is if the problem taenaive is seeing (describen in the link on post #205) an isolated case or a real problem with lean spool disable. I have the correct definitions but have not tried them yet because I found this info while reading the whole thread. Please take a look at the link to see what I am talking about. I PM taenaive and he told me he disable it: Here is what he wrote me:

Quote by taenaive
"Yes, Don't disable it. if u sandwich the values to the same RPM, you can get the IPW half-W problem at certain load( high load).
If you really want to disable it. make sure all the values are below 500 rpm. Then, you can truly disable it. MY car is currently enabled. I like the fact that it adds more fuel on my top gears when needed. It helps to fight detonations with more load. I think that those values are used by other routines that we haven't discovered yet."
End of taenaive Quote.

 

the link talked about changing the antilag enable/disable by accident...

ive never seen the behaviour he talks about. but I agree dont make the values the same, but as close as possible in an unused rpm range.

i think mine is set to 1500-1531... but whatever u feel comfortable with...

 

The lean spool set points (enable and disable) only work when the car is in open loop (or WOT) right? If I set a low rpm value (like 1500 rpm) and the car is in closed loop then the lean spool is not really working. Is this correct?

 

There is also a load threshold for lean spool. Just set the start and stop to 2500 rpm, and you're good to go.

 

Is using both values at 2500 the same as setting them both to 1500? or even both at 500 rpm There are people that are even doing two separate but very close numbers like start at 1500 and stop at 1531. Any advantage to doing that?

 

That is also how I have mine setup, but I have them set even lower and totally in a range it would never drive. I have them set at 1250/1250, but this half IPW thing is something I havent ever seen nor have heard of prior.

Lean spool has some value, its just for what you can use it for its really very minute in use.

 

Okay, I just worke up from old school dead now I see that lean spool enable and diable is just 2 addrs? When I was active, I remember there were 3 addrs to mess with one start from 2500 rpm and middle 4500 rpm and high 7000 rpm. What happened to 4500rpm? That was where I discovered injector IPW halving. Is this just wrong addr now? It definitley did something odd.

 

some early XML had incorrect addresses for leanspool, some have "Antilag enable/disable" which is also wrong.

either way there are only 2 addresses to worry about now, and the defaults should be 2500 and 7000.

 

I know they are mislabled but they are not wrong. If you change that 4531 rpm to other points. you will see the shift and different behavior of lean spool.

 

That maybe true - but how do you know you aren't affecting some other part of the fuel system by changing that variable.

The lean spool routine isn't simple, its very complicated and at the moment I dont have time to work out exactly how it works.

So until someone does I suggest that people just stick with the tried and tested information at hand.

 

Question..

If I add the lean spool enable/disable params. to my rom and decide after logging I don't like the results, can I simply flash back to the previous rom and be back to where I was before disabling the lean spool?

 

The 4531 rpm is a misrepresentation of the value. Its without a doubt an AFR value. IIRC, its the lean spool clip afr (go no leaner than this value during lean spool).

 

Anyone?