OBDII Self Diagnostics

[SlidnSideways]

I know on my 89 240sx there was a way to read the codes from the ECU by reading the green and red flashes. My 97 wont do this though. Is there a difference? Ive noticed that when I turn the screw fully clockwise, the lights on the ecu dont flash but the service engine light does. I tried stopping that when it blinked 3 times but still nothing flashing to indicate whats wrong. Any ideas?

ThanksTim

[driftingmy240sx]

the obd 2 systems dont flash codes on the ecm you really need to take it somewhere someone can scann it for you. i work in whitemarsh and have a garage at my house. e-mail me and maybe we can set up a time for me to scan the 97.

email is [email protected]

[yangs13]

there is a plug-in for an obd II reader somewhere, places like autozone can scan it for free

[Q45tech]

Once you have the OBD2 code you then find that page in FSM and follows the page/pages of diagnostic proceedure for each individual code.

You can Google: "Nissan P0xxx" to get general ideas.