what all can cause a motor to run rich,i bought new plugs,o2 sensor,it has a virgin ecu,no cel's.

im just trying to figure out why my car is smoking grey,the past 3 motors i have put it all smoked grey,not blue,3 different motors,one of which i am positive did not smoke.

could a faulty injector resistor box?having the timing advanced??

any ideas are gretly appreciated thanks

also the car runs good,doesnt back fire or bog or anything

 

stock fuel pump? defective fpr? how much vacuum at idle? need a little more info here

 

stock fuel pump and pressure regulator,but good point,the past 3 motors have done the same,also i think the timing may be off but i have been playuing with it for a while

 

What about the fuel filter? If it's old and dirty, it will cause a blockage that will send your fuel pressure through the roof. Check it out!

 

damn didnt even think about that one,thanks

 

especially since it hasbeen in the car with every motor you put in..

 

haha your begining to know me to well

 

lol

 

Umm...do you have a cat in the exhaust still? I'm thinking probably not.

 

b-i-ngo
b-i-ngo
b-i-ngo
and bingo was his name-o