hole while acceleration
#1
hole while acceleration
Hi everyone,
I recently powered my 2000 1,8l Miata Turbo with megasquirt PNP2 and I enjoy it. But when I'm WOTing, around 4500/5000 RMP BIG hole appear.
My AFR gague says 11:1 or movnig around 10:1 and I've try tuning ignition and fuel management... Ignition at 8° now.
Is it becose knock sensor is working??
Anyway at 6000/7000 RMP Miata is great!
Do you have any idea?
I recently powered my 2000 1,8l Miata Turbo with megasquirt PNP2 and I enjoy it. But when I'm WOTing, around 4500/5000 RMP BIG hole appear.
My AFR gague says 11:1 or movnig around 10:1 and I've try tuning ignition and fuel management... Ignition at 8° now.
Is it becose knock sensor is working??
Anyway at 6000/7000 RMP Miata is great!
Do you have any idea?
#10
Ahah I'm a frenchy so when I said "hole in acceleration" I mean taht when I'm WOT, engine stop accelerate brutally as a stop ignition. And When I realese accelerate pedal it's ok agan. But I can rev "slowly" and take 7000rpm
I use base map in PNP2 with 8° timing an a bit more rich injection on map:
I've raise this map of 10 scale
I decrease this map of 1° everywhere
I've raise this map of 10 scale and select "folow AFR table" on general setting
I use base map in PNP2 with 8° timing an a bit more rich injection on map:
I've raise this map of 10 scale
I decrease this map of 1° everywhere
I've raise this map of 10 scale and select "folow AFR table" on general setting
#12
Sounds to me like overboost protection. If you go into the Boost Control settings of Tunerstudio you should be able to make changes to the parameters for Overboost protection, chances are it is set too low and you're hitting that threshold at WOT. Also if I recall, you want to set it to both fuel and spark cut.
#14
Sounds to me like overboost protection. If you go into the Boost Control settings of Tunerstudio you should be able to make changes to the parameters for Overboost protection, chances are it is set too low and you're hitting that threshold at WOT. Also if I recall, you want to set it to both fuel and spark cut.
Anyway thanks guys It's good ideas.
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05-18-2010 11:36 PM