RedRocket260z Posted February 16, 2009 Share Posted February 16, 2009 I have a 260z with an lt1 that has lt4 heads, cam, and intake manifold. I have a little problem with the lights. The headlight on the driver side does not light up, it just kind of glows. The headlight on the passenger side works fine. I know it is not a bad bulb, because i already replaced it with a brand new one. The weird thing is, is that if i floor the car with the lights off, it runs great and pulls hard to 6k. If i turn the headlights on, when i floor the car, it acts really weidr, and starts to break up at like 4500 rpm and up. I looked for ground to double check everything, but could not figure out the problem. Has anyone had this problem or know what is wrong? also, does anyone know what the fuel psi should be on a lt1? Quote Link to comment Share on other sites More sharing options...
gvincent Posted February 16, 2009 Share Posted February 16, 2009 Don't know about your electrical problem. Fuel should be around 42psi, others have said 40-44psi for stock injectors Quote Link to comment Share on other sites More sharing options...
deja Posted February 17, 2009 Share Posted February 17, 2009 Sounds like you have a bad ground or +12V going to the headlight causing interference with the ignition module. Try disconnecting the headlights and turn on the switch to see if it goes away. Quote Link to comment Share on other sites More sharing options...
RedRocket260z Posted February 17, 2009 Author Share Posted February 17, 2009 does anyone know where the ground is on the car, for the headlights? Quote Link to comment Share on other sites More sharing options...
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