First disconnect the battery so we don't have an activation. Next you need to take the glove box completely out. There should be two 10mm bolts on each side (4 total) that you will need to find under the dash and remove. The airbag wiring needs to be disconnected (it's yellow) and the airbag will come out.
How to remove the front bumper to a 1998 Nissan Altima?
What do you torque the head bolts on a 1998 nissan altima 2.4 l
The crankshaft sensor on the 1998 NISSAN ALTIMA is located next to the radiator side of the harmonic balancer
timing chain diagram for 1998 Nissan altima
where is the oxygen sensor in a 1998 Nissan altima 2.4gxe
hammer
Motor
1
Below
1998 Nissan Altima GXE has a timing chain. Check your model at: http://www.courtesyparts.com/watches-c-7738.html
15.9
Mine is at 260000