reduce engine power?

[flaco]

hey all, my truck keeps on trippin the 1516 code reduce engine power at wot 6500 rpms every time, only in 2nd to 3rd gear, will not go pass that . ive tried maxing out the last rows on the (cal airflow vs tps 1514 error) and no luck. if i lower the shift point to 6300 and shift there it wont do it, and will keep on going. ive messed with the etc tables and no luck.

my maf reads 55.50 lbs/min when it enters rep mode, which is 428.48 g/sec
and .99 g/cyl when it does it.

is there a fix for this? i have changed the maf, and throttle body and no luck

attached is a log and the tune of it. any help would be great

414
235 trick flows
250's cam
vic jr and 90 elbow
4l80 trans, 4400 converter
90mm throttle body
60# simens scaled 72

[flaco]

Anyone?

[WS6FirebirdTA00]

First of all, give more than a few hours to let someone respond. Most people are not up between 12 AM and 10 AM to respond.

Secondly, do you have any logs with a wideband? Looks like you are N/A, if so, you are commanding quite a bit of fuel. If your fueling is off, airflow calculations will also be off. I am sure there is some airflow limit you are exceeding for those codes, just don't have the time to look through it right now.

[flaco]

First of all, give more than a few hours to let someone respond. Most people are not up between 12 AM and 10 AM to respond.

Secondly, do you have any logs with a wideband? Looks like you are N/A, if so, you are commanding quite a bit of fuel. If your fueling is off, airflow calculations will also be off. I am sure there is some airflow limit you are exceeding for those codes, just don't have the time to look through it right now.

i dont have any log of the wideband, i am running with a autometer wideband on my pillar, it shows 12.5 all across when i comand 11.9.
yes this is N/A

[EC_Tune]

Take a look in the engine diagnostics section for P1514 on the airflow tab...

[WS6FirebirdTA00]

i dont have any log of the wideband, i am running with a autometer wideband on my pillar, it shows 12.5 all across when i comand 11.9.
yes this is N/A

Then that means your airflow tables are off. Log the wideband and do it correctly. This way you will be getting real airflow numbers.