starts ok when cold,runs for 1 minute,puffs black smoke,ouits will not start when hot,changed everything on 2.9,tune up sensers,everything but o2 sensor fuel pump onrail,runs like starving for air
brand new coil,wires,new ignition module,new distributor
Then check the fuel pressure, it should be 35 to 45 lbs. Also check out the EGR valve and system. Make sure the EGR valve is closing all the way.
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