95 Nissan Altima 4 pin electrical connector to the distributor.

SOURCE: 1996 Nissan Sentra doesn't have sparks

Hi , the car was running before ?

if was your trouble is the timing marks are off the

right position

SOURCE: No trailer right turn signal or brake light

Hey Boon,

The pinouts for a 7-way plug are as follows:
Seven wire Trailer plugs:

Horse, stock or utility trailers:
White = Ground - 1
Blue = Electric Brakes - 2
Brown = Tail and clearance lights - 3
Black = Battery, aux power - 4
Yellow = Left turn/Brake - 5
Green = Right turn Brake - 6
Orange or Purple (not both) = Auxilliary or Reverse - 7

Recreational Vehicle:
White = Ground - 1
Blue = Electric Brakes - 2
Green = Tail and clearance lights - 3
Black = Battery, aux power - 4
Red = Left turn/Brake - 5
Brown = Right turn Brake - 6
Yellow = Auxilliary or Reverse - 7

In both cases 4 is battery and 7 is reverse, aux or not used.

Double check your wiring using these lists as a reference.

Click here for my post on Trailer wiring

This should get us closer to the answer.

Best regards,
Mike

SOURCE: 1990chevy 305 tbi clicking noise at throttle body 4 pin con

yes its the nozzles pulsing

Testimonial: "Thanks."

SOURCE: i have a 98 nissan altima and i purchased a 95

you may be allright if you use all sensors and external from 95.

SOURCE: 95 grand cherokee no start, it turns over but

If you don't have a check engine light that lights up on the dash when you turn your ignition key to on, then your ecu has gone bad, internally.