upstate240sx

actually blue sockets are also on odbI sentras, nx2ks you find me a blue socket harness and it will definately be odbI, white sockets are also found in odbII cars. every blue harness ive pulled is odb1 and every white harness is odbII. thats not misinformation ive owned at least 7 nissan cars within the last year along, and have looked at the harnesses on all of them. its just a coincidence that s14s are white plug and s13s are blue plugs. theres not a different color plug for every nissan generation. its has nothing to do with generation. that change in color has everything to do with odb. the blue plugs have a different pinout then the white plug ecus. this is the same for all nissan vehicles. if they have a white plug that are odbII. if they have a blue plug they are odbI.




http://www.sr20forum.com/200sx-se-r/...ml#post2204406
http://www.sr20forum.com/200sx-se-r/...ml#post2204469
http://www.sr20forum.com/electronics...r-harness.html
http://www.sr20forum.com/wanted/2136...ml#post2114555

in all of those posts numerous people state that blue plug ecu belong to odbI ecu, and white is odb II

and as far as coils go, an odb I harnnes (blue plug) will be external coil. and an odbII harness (white plug) will be internal coil. if you look at an odbII harness there will be no wires that will allow you to plug in a power transistor or a signal wire for a coil.

the same can be said for an odbI harnnes, the pinout on the plug for the distributor will not run a internal coil distributor. odbI harnnes also have the wiring to support an external coil.

even here
#/f/tech-talk/136803...ml#post1291500

you said that s14 harnesses (white socket odb2) cannot run an external coil and you explained why.

have you seen any blue plug odbII harnesses, no. have you seen any odb II harnnes with external coil no.

and as far as the ka series engine harness is concerned a 1 wire o2 sensor vs a 3 wire heated o2 sensor can be another tell tale sign of odb1 or obd 2
nothing i said at all was mis information.