miguelc

Hi everyone the truck is a 08 chevy , a 427, 60 lbs injectors, procharger, long tubes (?? model).

when I mash the throttle bellow 2500 rpm ti puff( goes really lean) , it doenst hapend if you move the throotle slowly

then... when your floor it it has some delay to go in PE


I tried activating ve when yo look at the throttle, going rally high on new ve and then on MAf...it doesnt work... or maibe I dindnt try it the right way.

here are 2 logs and my tune file.... it odne in beta because de 4l80 swap


I really apreciatte any pointer

Coban

iTrader: (14)

Did you change your enrichment rate? Lower is less delay I believe....

You might post up your tune file and we can give you some pointers. I'll have to wait till I get home from work to look at it...

Atomic

iTrader: (42)

No, faster enrichment rate is a bigger number. Try 1.00 which would make it go straight into PE.

Post your hpt file. Also post your scanner cfg file.

miguelc

thanks guys

there is a prob lem I cnat upload the calibration cause timer is over .. when I try.. and it says that cfg files are no valid

miguelc

enrich rate was 2... is there any tabel that delays PE below 2000 rpm ...I got the RMp to 500 and it keeps doing the same

Atomic

iTrader: (42)

Yes. DELAY RPM in the power enrich tab under engine fuel controls.

dc_justin

iTrader: (13)

Doesn't sound like a PE issue (going lean when mashing). Sounds more like a fuel dynamics/transient throttle situation. Does HPTuners have the transient fuel for the E38?

Atomic

iTrader: (42)

not sure exactly what you are asking, but this is the transient fuel tab on an 08 5.3. His being a 427, may be different.

miguelc

As Atomic posted, its all options we have to modify transient fuel on HPT.


thansk for your hlep guys

Atomic

iTrader: (42)

did you mean 327 (5.3) and the "4" was a typo in 427?....or do you really have an LS7 under there?