2002 Toyota Tacoma Very rich exhaust skipping white smoke

2002 TOYOTA TACOMA
135,000 MILES • 6 CYL • 4WD • AUTOMATIC
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KF4UOU
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I originally thought I had a blown head gasket but it doesn't smell like cooland it smells like raw gas. The engine has a dead skip at low rpm's white smoke but smells like gas, skips no coolant loss. Could it be an injector flooding the cylinder with gas, could it be a bad regulator? I just dont think its a blown head gasket. Thanks in advance. William
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Nov 16, 2009 at 7:44 PM
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RASMATAZ
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Possible causes include a bad O2 sensor, excessive fuel pressure (bad fuel pressure regulator or plugged return line), leaky fuel injectors, dirty air filter or restricted air inlet, or a defective coolant sensor that prevents the engine management system from going into closed loop mode.
Nov 16, 2009 at 8:38 PM