Question about Cars & Trucks
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Posted on Jan 02, 2017
SOURCE: computer error codes
this is your O2 sensor and is located after the air filter so check your air filter it may need to be replaced it is not getting the correct amount of air
the other code it is private for the ford dealer only but it may go out once you fix the air sensor
Posted on May 29, 2009
I have a 1996 ford f150 4.9 liter.The truck runs great but bad gas mileage.the only problem is i am getting codes p0401and p0402 what should i do.
Posted on Dec 18, 2009
Some 2001-2003 F-150, 2004 F-150 Heritage and 2001-2003 E-150/250 vehicles equipped with a 4.2L engine may exhibit the malfunction indicator lamp (MIL) on with diagnostic trouble codes (DTCs) P1131 and/or P1151 (system too lean bank 1 or 2). This condition may be due to leaking isolator bolts/port gaskets in the upper-to-lower intake manifold mounting area. This condition is sometimes intermittent and may not be apparent on a warmed-up engine.
Perform a self test. If DTC P1131 and/or P1151 are the only codes stored in the powertrain control module (PCM) proceed to Step 2. If any additional DTCs are present, follow normal diagnostic procedures found in the PC/ED Manual.
Remove the upper intake and replace only the port gaskets (9H486) and isolator bolt assemblies (9S479). The new isolator bolt assemblies use a rubber material that is green in color, do not install the old isolator bolt assemblies with the black rubber material. Do not replace any other intake parts or gaskets.
While the upper intake manifold is removed, check the exhaust gas recirculation (EGR) orifices that are pressed into each primary port of the lower intake manifold. If any of the orifices are plugged with soot, clean and unplug them with a pick and solvent.
PART NUMBER PART NAME
1L3Z-9H486-AA Port Gasket
3F2Z-9S479-AA Isolator Bolt
Posted on Jan 13, 2010
those two codes are for the o2 sensors. both are the upstream sensors on the front and rear banks. so they are desinagted bank 1 sensor 1 and bank 2 sensor 1. them most common cause for this is faulty o2sensors , bad gas and of a poor running engine. so if your car runs good (no misfire) and gas is ok then replace the o2sensor witch is the very most common cause.
Posted on Jan 28, 2010
Testimonial: " Help With Problem But Where Are These O2 Sensor"
If you bought an after market EGR, they normally have different size orifices with them. If the correct diameter isn't used, it can give you the same error. The H02S11 refers to the first Heated Oxygen Sensor on bank 1. It can be caused by a leaky vaccuum line at the Mass Air Flow sensor or a bad PCV valve or PCV system hose.
Occasionally it will indicate a plugged fuel injector or low fuel pressure.
Posted on Sep 24, 2010
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