Infowire

So i have a check engine light for knock sensor, both o2 sensors, and something about key cycle... i replaced the knock sensor and the o2 sensor... and the CEL is still on... i cleared it with the comp.... still there but the CEL is only on when the car is running, doesn't show up when the ignition is just on.

It shows all the codes still.... is my computer confused??

haydeno

iTrader: (1)

if you didn't solve the "something about key cycle" problem, that is likely why the light is still on...

JtzMax

iTrader: (5)

What codes are you pulling?

And for the love of every noob out there - THE KS WILL NOT TRIP THE CEL!!!!!!!!

ok, end rant. lol

Infowire

its throwing all the codes i mentioned still.

ColombianMax

iTrader: (7)

How factual is this?

JtzMax

iTrader: (5)

http://boredmder.com/FSM/Nissan/Maxima/1998/ec.pdf

Pg 240 .... "MIL will not light for KS, KS has one trip detection logic" Straight from the FSM. In other words ... very factual.

NABU6

iTrader: (9)

He is not stating that the KS is lighting the Cel. More than likely the O2 sensor lit it and when it was checked, the KS code came up. He is stating that after replacing said items, the codes are still showing up.

Conrad283

iTrader: (2)

There should be a sequence to reset the ECU by driving in the manual (there was for my wife's pathfinder).

Did you install the new parts and then clear the codes right away? Drive it for a bit (according to the sequence, if there is one) and then clear the codes again.

Infowire

i cleared them right away and drove for a bit and cleared again...

JtzMax

iTrader: (5)

So, do you have a CEL lit right now? Go to AutoZone and they can clear it for you. That's the easiest way. Anothe way is to disconnect the bat, both terms. Tie (zip or wire) the Pos and Neg leads together and leave them that way for ~30 min - 1 hr. No, I'm not messing with you ... you will not hurt anything, only gripe is that you'll have to reset your radio settings. Big deal ....

If you do clear the codes and the light come back on, re-read the codes. And again ... the frickin KS will NOT trip the CEL - for the love of Pete.

Shift_Knob

you can also reset the codes with the screw on the side of the ECU. as stated in the chiltions manual. doing it this way wont make you have to reset your radio.

Infowire

yeah i know how to reset the ecu.... by using the screw is that any way different than going to autozoo ?