Calling Speed density Gurus, help with 2bar custome OS

[Steve Cooper]

Hi mate,

I was just looking through your logs, and every time it falls on its face the throttle shuts. Is that you getting off it, or is the TRC on or something?

[blownsub]

If you look further you'll see where I made longer pulls. I would run out of room on the road and coincidently have to get out of it at that time. There are only a couple of long 4th gear pulls in that log. I need an eddy brake dyno in all reality.

[CatnipG5Bandit]

One other thing, in your open loop Eq ratio , you have 10.0 . Was that a accident ? Did you mean to write 1.0 ?

I'm going to step in here and say every GTO tune I've seen has 10.0 as the open loop EQ.

[goatboy]

I'm going to step in here and say every GTO tune I've seen has 10.0 as the open loop EQ.

my gto tune shows 1.0 for open loop EQ

[Maxspeed96ct]

some set this to 1.0 in speed density , i guess i was thinking of gen 3 tuning not gen 4



Looking through the repository most gtos are 10.
It was just something that caught my eye ..

check those maf DTC's though

[blownsub]

Mine was 10.0 stock, didn't change it. Now, for the rest of the story. Changing pe vs. tps to 5% fixed the pe enable. I read a thread that talked about this table not actually coinciding with linear tps but was more about the opening area of the throttle. I remember having to do this on my 2010 Camaro with the Maggie to get it to come on, different ecu but genIV so they're similar in some respects. Also lowered the test for maf fail to 300 rpms now maf has failed. Time to really massage the main ve table. My boost afr is really rich but at least it's coming in good at 100kpa, it's now map based which I like. My afr in boost starts at 11.7 and finishes at 10.5. I'll post the last log and tune (not final by any means) shortly when I get back to my laptop. Thanks to everyone that contributed. I'm learning a lot. Hopefully I provided something about the pe enable. It appears to be something not everyone knows about.