help

[Krylonking]

my rb20 is running rich and when i go to take off it bogs down anybody know what to look for

[goofynick6]

You should have an adjustable fuel regulator (Nismo makes one) and set the fuel pressure at 35psi idle, then make sure your throttle positioning sensor reads about .45 volts at idle, and then, make sure your timing is 15 degrees at 750 rpms if your car has a manual transmission.

ALso, possibly replace the o2 sensor..after all that is over, reset the ecu by unplugging your battery for 20 mins and press the brake pedal a couple times to totally drain the ecu's power.

Nick

[JonPowell]

Set fuel pressure at 43 with vacuum line removed. 35PSI is just a reference pressure assuming that your engine is pulling the correct amount for vacuum.

Easiest way to reset ECU is to unhook battery, turn key to on, headlights on and hold brake pedal for 20 seconds...then turn headlamps off, key off, and hook up battery again.