Hello all!

Very new to this Nissan Z stuff.....

I'm A Corvair guy and a GM guy for the most part.

I have a Corvair shop and we have a car that has been modfied to use the fuel injection system from a 280z. I normaly only deal with Carbs, 1-4 on Corvairs, so FI is almost alien to me.

Heres the problem: Car came in running very poor. Found that valves adjustments were way off and vacuum leaks all over.

All that is fixed, and engine runs better but still have a very overly rich running condition. Engine cold, or engine hot, condition persists. Replaced injectors for fear of incorrect poundage (sp) may have been used. Still no help

Now we have no running codition when motor is warmed up. Engine runs on cold start circuit and the quits when warmed up. Near as I can tell, regular injectors are not functioning. And Now at times a no start condtion when cold.

I suspect the ECU, but I dont know if there is a way to check it, or pull trouble codes?

Fuel pressure is up to 40 lbs.
Have spark, New plugs, fire at the plugs.
TPS, MAF,Throttle body, injctors, Temp/Time switch, head temp switch all new or rebuilt. Wirring is new.

Do these units require an O2 Sensor? PN ON ECU- a11-604-420. Can anyone give me info on what exactly this ECU was intened for? 1978,79,80? Stick, Auto? o2 sensor or no?

All your help is apprciated. Let me know if you want to see pix of the install.

Regards,

Marco