94 honda civic b20 turbo 9 psi with dsm injector w/ resistor box. I street tuned it and it makes really good power, but at night when i turn the headlights on the car leans into the 18's only at 0%-to 15% throttle, under boost its dead on 12.2-11.9. I have check the thermo ground, valve cover, starter and battery. any suggestions? Never had this problem before. I had two other motors in the car running fine when i tuned them.

 

Have you checked the alternator?

 

Injector dead times.

 

This also call latency depending on the program used.

 

alt 13.7v
what is dead time is it correctable?
I used crome pro

 

Ok i just realized i did not change the Battery offset to the dsm injectors which would cuz some problems when the voltage drops from the headlights. I'll check into this tomorrow.

 

I changed the battery offset and it seemed to help. i didnt get to drive the car cuz its raining so bad but i will have to touch up the fuel table just a little. Thanks for the help.

 

Hell with rain, what about Tornado's? Be safe up there this weekend.

 

True that. Weather was nasty!

 

Thank you very much. That means alot we lost my cousin in last years tornado. No one around here thinks twice when the sirens go off any more.