Whats up HT i have a 92 civic si just had it turbo tuned 2 weeks ago the motor is a d16z6 with forged internals. It was tuned at 18lbs 271 hp i got the car back and have been working on making her nice again and a few tailight issues. I drove it around for a bit one day parked it for a few hours came back out and the battery acted like it was almost dead all the lights were weak. I checked fuses and relay they r good i hooked the jumper cables up and this time my fuel pump wasnt priming so this is where im stuck at now. I have searched a lil on line with no real answers. Kinda figured it was my relay until a few mi s ago. Kinda weird this happened as soon as i got everything in working order on the car. Any help would help a great deal. Thank you

 

The fuel pump is a new walboro 255 with 450cc injectors.

 

what did you touch when you got it back? was it just the tail light harness or what. Also did you test the fuel pump?

 

There was a short in my right rear tailight plug so i wired in a new plug and it works fine. Drove it around all day after that parked it, came back out later and it was acting dead half thrning half clicking. I figured it was a fuse ive had it happen before but they all look good

 

Going to pick up a test light here in a bit so i can get a better look, havnt checked the pump itself. Thanks.

 

Check all your grounds.

 

^ +1

 

I had went over the car the other day for grounds and loose connections. The car had very poor start up power the i saw that the ground from the tranny wasnt connected, bolted that back on and the car came to life but that was the only think i saw. A few days later it does this. I will double check though

 

Remove and clean all the grounds even if they look good.

 

Sounds like the battery is dead.

 

So i started messing with the car today and found a ground on the back of the motor with four wires going to it 3 of which had came disconnected and the last one was almost there i re grounded the wires and the car starts and runs like a champ, except for the bat being dead. Thanks to everyone for the help.