indygoat

Is part-throttle KR something I should be concerned with? In higher gears (mostly 5th and 6th) if I roll into the throttle I get about 5 degress of KR or so. However, if I just poke the throttle and make sure I achieve PE I dont see any KR. What is your guys' feeling on this?

I really appreciate your input on this! Thanks in advance.

jimmyblue

iTrader: (11)

This is just showing you that the speed density
side of the tune is not really right, or that you
have too much advance for a non-enriched
mid-MAP operating point. I'd more suspect the
former, look for an O2 voltage dip preceding
the knock detects to decide.

indygoat

Speed density = VE, correct? Thanks for the info, I will have my tuner take a look.

indygoat

And is part throttle KR even something that should concern me?

RedHardSupra

iTrader: (1)

are you talking about low rpm, high map, high gear moments when you get knock?

indygoat

Pretty much.

RedHardSupra

iTrader: (1)

then it's normal, you're creating a huge load on the engine and knock is a reaction of that. you're stressing the engine past it's natural limits. if you need to accelerate, downshift

ezrollin

speed density means no MAF
does it also mean Open Loop mode and no O2 sensors?
its been awhile

White.Lightning

iTrader: (53)

No. You are in closed loop with the MAF unplugged. The PCM is still receiving feedback from the 02's while in SD mode.

Andy