Thread: obd2 b14 to obd1 sr20

Well thank you for your help

Bump for pics added to my question. As you can see they look pretty close but are different. One of the SERs plug is a tad wider than the GAs and the other SER one has 2 rows of prongs when the GAs has one.

I would just swap pins from the SER harness to the connectors on you factory harness and you are set. Search for the FSM and find out which wire does what. There are lots of little differences between GA's and SR's in the B14's. Finding the wires will not be easy though.

Would it really be all that hard? Is there a different color code for each of the harnesses? If I picked up a ser underdash and wired that would that work? Whatelse would I have to get?

What's the fsm a wiring diagram?

So I have a Haynes manual on the b14 sentra and 200 and in the wiring diagrams it has one layout for both the sr and the ga. So shouldn't that mean the plugs should match?

They could differ through the years. Haynes is little more than a basic guide. FSM - Factory Service Manual.

Index of /FSM for your FSM needs

I did some more reading on our sister site.

You're going to need EVERYTHING from an SE-R as far as harnesses are concerned.

See the link here:
HOWTO: 1.6 GA16DE to 2.0 SR20DE/T Swap - SR20 Forum

Just dash and engine as long as its 5spd to 5spd swap. If auto swap engine bay harness as well.