I idle funny and stall at stoplights.

[paul_coplin]

my 1990 ford ranger starts up just fine before work, i can pull out with no problems, but after three stop signs, at the fourth stop it a light, the engine lurches* up and stalls out, then 1/2 mile later at the next light, it will lurch and stall again. then it is on to the bosses house just fine....
afterwork, it starts up just fine, idles for about 5 minutes, and once i put it in drive and begin to take off, it just stalls. it usually lurches at the first stop lights, when i have to slow down or after i've stopped at the light and try to accelerate. everytime it stalls, it always starts right back up. i live 1 1/2 miles from work. it happens before and after work, or after long periods of sitting. i came home from work today, after having the usual problems that i stated before, but an hour later, i drove it to my mothers house, aprox. 4 miles away, and didn't have the problem. can i get a list of possible problems and solutions? i'm a begginer.


*lurch- it jumps erradically (rpm800-2200) vroom2200, chug1200 vroom2200, chug1000 vroom2200 chug800 vroom2200 stall000


Action Part Type Cause
__________________________________________________ _______________
Inspect EGR Valve EGR Valve Sticking Open/Leaking.
Inspect Idle Air Control Valve IAC Valve Sticking or Faulty.
Inspect Mass Air Flow Sensor Damaged, Loose, or Faulty Mass Air Flow Sensor or Circuit.
Inspect Spark Plug Incorrectly Gapped or Fouled Spark Plug(s).
Inspect Throttle Position Sensor Faulty or Incorrectly Adjusted/Connected Throttle Position Sensor.
Inspect Idle Air Control Valve Damaged, Loose, or Faulty Idle Air Control Valve.
Inspect Idle Speed Actuator Damaged, Loose, or Faulty Idle Speed Actuator.
Inspect Idle Stop Solenoid Damaged, Loose, or Faulty Idle Stop Solenoid.
Inspect FreshAir Intake Hose Clogged or Damaged FreshAir Intake Hose.
Inspect Throttle Position Sensor Faulty or Incorrectly Connected Throttle Position Sensor.
Inspect Fuel Filter Clogged or Dirty Fuel Filter.
Inspect Fuel Injector Dirty or Worn Fuel Injectors.
Inspect M.A.P. Sensor Faulty M.A.P. Sensor.
Inspect EGR Valve Improperly Functioning or Faulty EGR Valve.
Inspect Fuel Injector Dirty or Worn Fuel Injectors.
Inspect Idle Air Control Valve Damaged, Loose, or Faulty Idle Air Control Valve.
Inspect Idle Speed Actuator Damaged, Loose, or Faulty Idle Speed Actuator.
Inspect Throttle Position Sensor Faulty or Incorrectly Connected Throttle Position Sensor.
Inspect Fuel Filter Clogged or Dirty Fuel Filter.
Inspect PCV Valve Plugged or Damaged PCV Valve.
Inspect Carburetor Worn, Faulty or Damaged Carburetor.
Inspect Valve Burned, Worn, or Sticking Exhaust Valves.
Inspect TimingSet Slipped TimingChain or Worn TimingGear(s).
Inspect Fuel Pump Faulty Fuel Pump.
Inspect Camshaft Camshaft Lobes Worn.
Inspect Point Set Burned, Worn or Incorrectly Set Ignition Points.
Inspect Fuel Pump Low Fuel Pressure.
Inspect Timing Set Slipped Timing Chain or Worn Timing Gear(s).
Inspect PCV Valve Clogged Emission System.
Inspect EGR Valve Improperly Functioning or Faulty EGR Valve.
Inspect Carburetor Incorrect Carburetor Adjustment.
Inspect Spark Plug Incorrectly Gapped or Fouled Spark Plug(s).
Inspect Wireset Worn, Damaged or Faulty Spark Plug Wire(s).
Inspect Head Gasket Leaking Head Gasket.
Inspect Intake Manifold Gasket Leaking, Worn, or Damaged Intake Manifold Gasket.
Inspect Air Filter Clogged or Dirty Air Filter.
Inspect Camshaft Camshaft Lobes Worn.

 

[martin]

pull the codes, How to do it can be found in the tech library.

 

[paul_coplin]

thanks!

i think i have the obd connector. thank you for your help.