E38 Hummer P.E faults!

[wag338]

Hi has any one come across a issue with p.e not being enabled. the origanal tune had the p.e delay timer @7.00 secs & throttle threshold @87%. I've moved it to 0.10 time & 40% throttle. the timer seemed to wirk as it changes straight away but it apperes to only switch at 98 kpa.Any one got any ideas/pointers!

[swingtan]

Check B0157. This sets the MAP pressure to activate PE mode and given your throttle settings, should probably be set fairly low.

Simon

[wag338]

Hey thanks for that i've check ed that it's at 55 kpa in both the origanl & moded tunes. i moved it to 40 kpa for 1 flash but no change!

[swingtan]

Post the tune......

[wag338]

i'll try to get back on after work . thanks for your info. i've found (B8060 & B8061) i might try that. i'll lower B8060 and see how i go

[izaks]

Only seen the E67 used in Hummers, but
Change B0157 to at least 75
Change B0164 to 800
Change B0156 to less than 20% at the rpm you want PE enabled
Lower B0165 to less than normal operating temp
Change B0167 to 0
Change B0169 to 1
Change B0155 to 500