2.9 Idle problems

[Supabeast05]

I have a 86 ranger 2.9 and haveing problem with the idle. It has new fuel filter fuel pump, New Fuel pressure regulator, new O2 sensor. Its just a random miss. anyone have any ideas im stumped

 

[low_five]

http://www.therangerstation.com/tech_library/OBD_I.html


try that and see if its giving you any codes.

 

[IMenriched]

+10 on getting codes.
check for vacuum leaks... get it running...take a spray an of carb cleaner...systematically spray hoses and connections if RPM picks up..focus in that area

 

[ranger]

try replaceing the spark plugs and wires