Hey everyone. Name is James. I just got a 1990 Integra 4 door special edition. Car was an auto car was swapped by last owner. I put my b18a1 out of my hatch that i rebuilt 2000 miles ago (with all oem parts) in it and now the only thing other then the sunroof not working is when i have the car in the ACC position and have the headlights on the tail lights/driving lights work fine. When i turn the car on the headlights work but the tail/driving lights go off.

Everyone i have talked to has told me to join here. Need help with it bad.

Thanks!

 

I would check grounds, the park light circuit is a 12V+ constant, [hot at all times].

The cars ign. circuit is a 12V+ switched, [hot in run and start].

The only thing common between the two circuits is the ground so that is most likely where the problem is.

Head lights and park lights are on the same main fuse, fuse 33 - 50A, [hot at all times] in engine bay fuse box.

Fuse 11 - 15A in under dash fuse box is the park light fuse, test it for power when engine is running, [park/head lights on].

Question... is it just the park lights, [running lights] that go out when engine running or do you also lose the dash lights? 94