azzyork

my 2005 acura tl AT has been slipping so i decided to drive my other car. The other day i took my acura out for a drive and my check engine light came on. Took it to a shop and this code pops up "p0174b bank 2 system too lean". Can that be the reason my car has been slipping? please help me Scott and timtim.

BradE

Probably not.

Likely just needs an O2 sensor replaced on bank 2. The tranny is a seperate issue.

azzyork

so if that's the case, i have a o2 sensor problem and a tranny problem?

BradE

Yup.

azzyork

damnnn FML!

BradE

Try changing the trans fluid, and maybe the pressure sensors, see if that fixes the issue.

azzyork

princelybug and timtim on the forum helped me did a 3x3 ATF drain/refill. i ordered 3rd and 4th gear pressure switches http://www.acura-cl.com/forums/showthread.php?t=729149, going to try to see if that works and im also goin to change the o2 sensor. we'll see what happens. thanks bradE for the replies.

240sx acura tech

it needs a pcm update and a valve adjustment

azzyork

what is that exactly? is it expensive?

princelybug

iTrader: (16)

PCM=Powertrain Control Module

240sx acura tech

It just means it needs a software update.

240sx acura tech

It just means it needs a software update.