2003 Chevrolet TrailBlazer "causes rich fuel mixture" Questions

...is picking from the rear O2 sensor is off. This can be caused by many things in the engine, rich fuel mixture, lean fuel mixture. A high-end scan tool needs to be hooked up and a diagnosis

On a 04 trailblazer ..what cause the smell of rotten eggs? An overly rich fuel mixture or poor fuel quality..

...rich fuel mixture on the right side. It may be caused by a fuel injector not closing fully. Dirt particles can do this. Adding Gum out may help. The other engine codes, 306 and 340 is for missfire ...

...fuel rich mixture and in all probability you are fuel flooding your engine. The black vortec box on top of your engine should not have had "gunk" in it. Possibility is that your air filter is ...

...sensor. P0125 is for coolant temperature being too low, P0128 is for coolant temperature not rising fast enough at start up, these could be a bad thermostat. P0172 is for a rich fuel mixture

...fuel pressure is good, Have you completed a total tune up? and that means everything from cap and rotor to wires and plugs? if not? Do so... Then buy lucas injector cleaner and pour in tank, and for ...

...rich fuel mixture; if you can obtain a scan tool that is capable of displaying live engine data you can check for these possible causes: 1) Low MAP reading; this can be due to a fault in the MAP ...

...RICH FUEL MIXTURE.CAUSE BY WEAK SPARK IGNITION, FAULTY MAP SENSOR CHECK MAP SENSOR VACUUM HOSE AND ELECTRICAL CONNECTOR BECAUSE BAD MAP SENSOR WILL CAUSE RICH FUEL MIXTURE CHECK THE VACUUM LINE GOING ...

...rich fuel mixture bank one and 175 is for the fuel mixture too rich on bank two. Code 143 is for a rich mixture for sensor number 3. All of the codes could be connected to a leaking injector or other ...

...causes to find out if in fact it was the plug and wires causing this code you most clear code and check if the same code returns then you go the next step. (JOSH) There is something you can do if ...