As the tittle says my ls vtec turbo civic, is starting tired. The other day I tried to made a pull but it bog at WOT. Can a bad battery affect the injector battery offset when the alternator is working properly?

I left it alone, until I bought a new battery. The car is tuned and running super fine before. This car stay sometimes 2 months sit in the garage normally until I remember to warm it or use in a weekend.

 

Sounds like your offsets weren't tuned right. If the car sits, then it's cheap insurance to buy a battery tender. BUT, even then, the battery still jas a cycle life.

 

While on the battery topic... Stay away from Vato Zone and O'reilly's batteries. Worst F*** batteries ever!

 

You aren't lying there

 

Yeah they are trash. Mine always go bad right after the warranty expires. How convenient.