jkstanglime

i got a 1987 5.0 it starts then dies. i have spark on the plugs . there is fuel coming from the fuel pump . i have put on a fuel pressure regulator and it still will not keep running. am at wits end any help would be good.

mustnglvr

Check fuel filter and fuel pressure.

mattdel

idle air control valve<---- guaranteed

84 Turbo stang

+1 idle air. if not. TPS. if not, MAP sensor.

jkstanglime

i have replaced the fuel filter and it has good fuel pressure. how will the icv make this happen.

mattdel

The air bypass valve solenoid is used to control engine idle speed and is operated by the EEC-IV control module. This valve allows air to pass around the throttle plates to control, cold engine fast idle, no touch start, dashpot, over temperature idle boost and engine idle load correction.

jkstanglime

thanks for the info . i will have to get one tuesday . i will get back on here afterwards and let you know how it goes.

5.0stanger

Typically, if you unplug your IAC, your car will stall. If it is unplugged, and then you start it will start then stall. To test this, use part open throttle(by foot or throttle adjuster) to hold the rpms up and start it. If it runs, you may have an issue with your IAC