Draco
April 11th, 2006, 04:36 PM
Hi guys,
I'm trying to tune my vortech'd C5 (wideband equipped) and having a problem with PE mode lag. It's an SD tune but relies on the PE tables above 105 KPA. It seems that for the first 1/4 to 1/2 second after I go WOT, the mix is way leaner then commanded (i.e. 14:1 indicated, when 12.5:1 is commanded). It then immediately tracks the command AFR like it should by the time 1/2 second has passed. i have the PE delay completely bypassed.
Do I need to change my PE mode ramp rate settings? right now I have the ramp-in rate setting ( B3644 ) at the stock .006250 - which way would I adjust this to get enrichment going quicker?
What about the Commanded fuel step size? it's set to 1 right now, maybe going bigger will help?
Could someone please explain how B3643 and B3644 work?
I really dont want to trial and error this while in boost so any help is appreciated :).
I'm trying to tune my vortech'd C5 (wideband equipped) and having a problem with PE mode lag. It's an SD tune but relies on the PE tables above 105 KPA. It seems that for the first 1/4 to 1/2 second after I go WOT, the mix is way leaner then commanded (i.e. 14:1 indicated, when 12.5:1 is commanded). It then immediately tracks the command AFR like it should by the time 1/2 second has passed. i have the PE delay completely bypassed.
Do I need to change my PE mode ramp rate settings? right now I have the ramp-in rate setting ( B3644 ) at the stock .006250 - which way would I adjust this to get enrichment going quicker?
What about the Commanded fuel step size? it's set to 1 right now, maybe going bigger will help?
Could someone please explain how B3643 and B3644 work?
I really dont want to trial and error this while in boost so any help is appreciated :).