bored smog tech here

[twistedsymphony]

Originally Posted by Flybert

Don't take the bulb out. Just wire the oil pressure light to the check engine light.

+1 to this... "astute" techs will notice that the CEL doesn't come on when the car goes through the self test... notice when you first turn the car on all the warning lights come on... this is so you can check if the bulbs are dead. wiring up the CEL to the oil light works great because it will come on with the self test and then go off once the car is up and running.

There are things you can do to the Auto ECU to prevent it from throwing a code, I haven't done it but I've heard its not too difficult, Manaul ECUs go on eBay and the BST all day for $60...

Originally Posted by blitzsti22

not sure if the ecu was changed into a 5 spd how can i tell

not sure what years yours is but there's a nissan sticker on it with two big letters cross reference those to figure out what it is

Automatic ECUs
11 = 89-90 240sx AT (KA24E) ?
15 = 89-90 240sx AT (KA24E) Cal
25 = 91-94 240sx AT (KA24DE) ?
29 = 91-94 240sx AT (KA24DE)
HU = 95 240sx AT (KA24DE) (mfg before 10/94)
3D = 95 240sx AT (KA24DE) (mfg after 9/94)
CB = 96 240sx AT (KA24DE) Universal
NF = 97-98 240sx AT (KA24DE)
J7 = 97-98 240sx SE AT (KA24DE) (A18-H64 GA4)

Manual ECUs:
10 = 89-90 240sx MT (KA24E) ?
24 = 91-94 240sx MT (KA24DE) ?
28 = 91-94 240sx MT (KA24DE)
HT = 95 240sx MT (KA24DE) (mfg before 10/94) (A18-E07-G90)
3C = 95 240sx MT (KA24DE) (mfg after 9/94)
CA = 96 240sx SE MT (KA24DE) (A18-E27-G46)

^thats a list I've been working on, it's not complete so if you've got something else then you'll need to google about. My car has "HU" because it's an early model 95 with an AT ecu...