viper92086

iTrader: (2)

hey guys my 98 i30t is a california spec car and i was wondering what differences it has. are most of the sensors the same?

Dhione

iTrader: (2)

one thing i know for sure is that the cali ones come with 4 o2 sensors and the fed spec come with 3

allensteiner21

iTrader: (6)

^

same car except extra emission stuff to comply with your wonderful state's laws.

99BettySE

More pre-cats, more 02 sensors, more crap in the way of the knock sensor...

Most of the sensors are part-wise the same as well as I'm aware of, they might just be in different places, and more of them. If there's a different sensor for fed and cali, any parts store should carry both.

viper92086

iTrader: (2)

^ ok awesome, my main concern was if the map/baro was different and if the knock sensor was different. BTW i was looking around for o2 sensors and i only see the one on the front and theres one near the back of the motor onthe pass side. wheres the other ones?

njmaxseltd

iTrader: (19)

There are 4 O2 sensors.
One on each cylinder bank before the precats (2)
One on each cylinder bank after the precats (2)
Total 4

The intake manifold has swish valves incorporated into it.
The actuator for them (they only close when the engine is warmig up) is what gets in the way of the KS. Two screws easily removes it to get at the KS.

Snypa

iTrader: (35)

yep^^ you guys basically said it. Im still yet to change my KS on my cali.

JSutter

iTrader: (46)

Unless the OP had a typo you are all wrong. A 98 is still like the other 96-98's. A 99 cali spec is the only year with all the added emissions.