TURBHOE

iTrader: (4)

can a maf influence the trans to shift and act poorly? here is why i ask


i borrowed a maf off of a friend to test and see if my maf was bad. (irratic during boost) well the next day he tells me hey you can keep my maf i don't want it back. i was like ok? why. he proceeds to tell me that his truck started shifting better, faster, and less irratic ( as in shifts when it is suppose to). so i thought well maybe he just thinks so. well sure enough my tahoe has started to shift funny. won't go into first sometimes and takes time to down shift with part throttle. just acts really wierd. i need to swap back and see. but just wondering if this could be the case.

i do remember reading in some tuning forums that newer truck you weren't suppose to disconnect the maf cause it would default the trans to ull line pressure..?

charcold-bowtie

iTrader: (10)

I know it has an effect on the trans pressure, but not sure aobut the shifting patterns or etc....

TURBHOE

iTrader: (4)

can the pressures make for bad shifts? i notice my shift take alot longe now and he said his are alot faster. he said they weren't reealy hard but felt more precise i guess. firm but not neck snapping.

phasemaster1

iTrader: (11)

Yeah Ive read thats why it isnt good to de-screen our maf.

trever1t

iTrader: (14)

uh...I could be wrong but as far as I know the MAF measures airflow...which could cause fueling issue but I can't understand how th trans would be affected because the trans doesn't use any airflow tables....somebody explain?

TURBHOE

iTrader: (4)

yes please...

outlawz2004

iTrader: (18)

I have been running without a screen in my Maf for over four years in my 04, and took it out of my previous 1998 silverado. Also removed it in my brother in laws 98 silverado. Never had a problem.

TURBHOE

iTrader: (4)

well snake eater ran a lingenfelter cam up to 7000 rpm with stock springs all the time and nver had a issue either. i'm just asing if a maf can effect the trans.

outlawz2004

iTrader: (18)

Maybe if the MAF is no good it is causing the engine not to run right, possibly surging which could affect how it shifts and drives. I don't know. I had a foam Weapon R filter that after it got old started to release small peices of foam that caused drivability problems when it got in the MAF.

goldylux

iTrader: (1)

what can affect ur shifting patterns is the (tps) throttle positioning sensor..
if the tps is bad ur computer wont send the correct signal to the trans when to shift.. i know it first hand