ls/si newbie

Ok so I bought this 95 civic dx has a b18a1 Block an a 200 si head lots of internals hondata s300 ecu. One day car started actn up like. Can start it but as soon as u give it throttle it dies unless u mess with the tune. If I change the tune to a gsr tune an offset for the injectors it runs but acts up in the throttle. New tps,new map. All wiring to ecu is good. Ha r no clue what it is. Ty

ls/si newbie

I thought I could have been the tune but the tune didn't change while driving it so idk

StraussBuster

I had a similar issue when I first did my swap. I ended up just having to swap some connectors around. My first piece of advice would be to use this to make sure all of the required connectors are plugged into the right spots; Honda OBD1 Plug and Wire Diagram

StraussBuster

You're also gonna need an actual tune for that setup to run right. No matter what, it'll run rough and inefficiently compared to how it will with a proper dyno tune (I know from experience). Plus, it'll run lean, only using enough fuel for a normal gsr or whichever setup you equip, which will cause long term damage.

ls/si newbie

It has a dyno tune an was running great. I've checked everything. I parked to see a friend came out an it did this but like a day or 2 before I was driving an went to hit vtech an it fell on its face. Don't know if it's associated with the problem or not.an I've checked all my plugs on the harness

ls/si newbie

Now that I think of it. there is a random plug floating around the tps sn map sensor. I also didn't see a iat or icv, on my aftermarket intake I wonder if it's on the bottom of the intake and I just can't see it an it unplugged. It's gotta have one or the other right

ls/si newbie

Idk what the random plug is to it same shape as tps an map an has red wire an yellow with a brown stripe but everything else is plugged up. Just double checked