valve/cyl

is it the ka24de that has 3 valves. And is this motor a sohc or dohc?

the ka24de(dohc) has 16 valves, the ka24e(sohc) has 12 valves

i thinkhe ment 3 valves per cylinder that would be the 89-90 KA24E

did they have a half year in 1990 ka24e vs. ka24de ( this is what I gotts )

i don't believe so i've never seen a 90 wit the DE

the other day I went to autozone to buy a replacement turn signal bulb they also pulled two different bulbs one with the one bump on the bottom and the other with two. And the guy at the store thought there was maybe a half year aswell

At Autocheck.com I had vin decoded and this is what it said :
Vin: Jn1hs36p7lw143356
Year: 1990
Make: Nissan
Model: 240sx SE
Style/Body:2 Door Hatchback
Engine: 2.4L I-4 SFI DOHC
Country of Assembly: Japan

www.autocheck.com (http://)

Try it out-> they'll decode your vin for free... however they want you to pay for the car history but you don't gotta!