Had a diagnostic test done, Codes P0304, P1131 and P1299 are telling me where the problem is. Can someone tell me what I can do to fix it. These codes tell me it's a Cylinder problem associated with Air intake and Temperature as Code P1299 is a Temperature Sensor and P1131 is also an oxygen sensor...
What type of cyl. problem, compression ,miss fire, if it is a comp. issue more than likely you have a nead gasket problem,you can check this by performing a cyl.compression test you can purchase the tool the other two issuses are simplely fixed by replacing those sensors this could very well elimate the other problem
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The codes are for a lean fuel mixture. Since more than one sensor is giving this reading, I would suspect low fuel pressure or other fuel problems. Could also be a problem with the cooling system and the coolant temp sensor or air temp sensor not telling the computer the air is cold.
All these are fuel trim codes and fuel control O2 sensor related codes, you have something that is causing this as all the sensors seldom fail. My advice here is to see a Ford dealer for the diagnostics before any parts are replaced.
Hello! #1...I need to know if the Check engine Light is on...If it is, take the vehicle to an Auto Zone or Advanced Auto (any auto parts store) and they, for free will read the code/codes...send the trouble codes to me and I'll fix your Focus...#2 tell me which engine is in the car; give me the sub model ie...SE, ZTS....etc...If there isn't a CEL tell me....Guru...Saailer
after installing the EGR he should have cleared the computer of codes. then when you run the engine, any new fault codes will show up.
but here is a tip for you. you can go to any autozone or orielys parts stores and the will read the codes for free and tell you what your problem may be. from ther you may need further diagnostics at the shop
These codes are dealer specific. Please call you local dealer and they will give you the exact meaning.
For now I think you may find the code needs to be verified. Here is my advice. Have the reading done by - Auto Zone and also Advance Auto all over again. If the codes match Take down the vin# - call the dealer and tell them the code. Ask them what it means and - -ask if your vin# brings up and recalls or service needs as issued by the factory. Some things never go out of date.
One last this - your header here says 1995 -your note says 1998. You need to sort that out as well.
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
po301 thru po306 all misfire codes cylinder 1-6 remove plugs and replace them..... set the plug gap first
i suggest u replace the wires also if they never been replaced all these misfire codes can set the others and one is for the oxygen sensor ( 02s or HO2S) CIRCUT MALFUNCTION do u know how to check wireing systems
do the tune up plugs (set gap) .052-.056 change the fuel filter also. clear the codes hows it run
this info is for 98 E-250 4.2Litre
what engine do u have 4.2L or 4.6L i know it is a v-6 by the codes