fault codes 2 at same time?

[epox]

Any idea why these two codes would pop up at the same time?
Doing around 60 in fifth accelerate and codes popped up was around four deg out side.
does not happen all the time.
fuel trims around1.5 and-1.5, boost just over 22 and 372 torque.
16487
17963

cheers

 

[<tuffty/>]

http://wiki.ross-tech.com/wiki/index.php/16487/P0103/000259
16487/P0103/000259 - Mass Air Flow (MAF) (G70): Signal too High

http://wiki.ross-tech.com/wiki/index.php/17963/P1555/005461
17963/P1555 - Boost Pressure Control: Upper Limit Exceeded

What map is on the car?

<tuffty/>

 

[epox]

Revo stage 1and filter,no other mods, seems strange its only 5th -6 gear, can rip the bum off it and its fine in other gears maf replaced 1500 miles ago with on from tps. just when sitting 60 ish.and both faults at one time.

cheers

 

[badger5]

both related to exceeding the maps limits so no surprise they both spaz out at same time
log 003,115,118 to look see whats occuring

5/6th is sustained load so it will sit slower accelerating which can trip a limit

 

[epox]

will do,

cheers thanks.