QuestionThe vech will start and run for a few seconds, the amount of time can be extended if the you open the trotle. vech has good spark but dies as if you turned it off
Answerroverjoe,
Check the codes first. But, I think you either have a bad air meter, throttle position switch, idle air control valve or distributor. Check the codes using the following and email me back.
Diagnostic Trouble Codes - 1987
Nissan
11 Crankshaft Position Sensor
12 Air Flow Meter
13 Cylinder Head Temperature Sensor
21 Ignition Signal
22 Fuel Pump
23 Throttle Valve Switch
31 Load Signal
32 Start Signal
41 Fuel Temperature Sensor
44 System Okay
1. Verify that diagnostic mode slesctor is turned fully counterclockwise.
2. Turn ignition switch ON.
3. Make sure inspection lamps stay on. (Bulb check.)
4. Turn diagnostic mode selector fully clockwise.
5. Make sure inspection lamps display code 23 and 31.
6. Depress accelerator pedal and release.
7. Make sure inspection lamps display code 31.
8. Start engine, apply brakes and shift into "D" position.
9. Make sure inspection lamps display code 31.
10. Turn a load switch OFF-ON-OFF. (A/C switch, Headlight switch etc.)
11. Shift into "P".
12. Make sure inspection lamps display code 44. Any other code is a DTC.