Question about 1997 Lincoln Town Car

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Check engine light on i am getting codes of p0125,1131,1151 car sat for a couple of years

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DTC P0125 - Insufficient Coolant Temperature For Closed Loop Fuel Control

This means that the engine coolant temperature (ECT) sensor indicates that the engine has not reached the required temperature level to enter closed-loop operation within a specified amount of time after starting the engine.

Symptoms: You will likely not notice any drivability problems.
Causes: A code P0125 may mean that one or more of the following has happened:
* Insufficient warm up time
* Low engine coolant level
* Leaking or stuck open thermostat
* Faulty coolant temperature sensor

Possible Solutions: The simplest thing to do is to reset the code and see if it comes back.

If the code comes back, the problem is likely going to be the result of the above causes (faulty thermostat, faulty ECT sensor, or a low coolant level).


DTC P1130, P1131, P1132, - HO2S11 lack of switching, Bank 1
DTC P1150, P1151, P1152, - HO2S21 lack of switching, Bank 2

Check into this Bulletin...
TSB 05-22-6 ISSUE:
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.

SERVICE PROCEDURE:
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

Even tho it says just to replace these parts id also be tempted to change the lower intake gaskets as well while your in there.


Hope help with this info; tell us news.

Posted on Jul 18, 2010

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Posted on Jan 02, 2017

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chuck943
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SOURCE: check engine light is on, giving me p0125 obd code

Insufficient Coolant Temperature For Closed Loop Fuel Control. Bad thermostat most likely.

Posted on Apr 22, 2009

  • 67 Answers

SOURCE: 2003 ford taurus what to do to fix,have codes 1131 and 1151.

error codes 1131 and 1151 say : Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean - Bank No. 1 (1131) and 2 (1151).

a lot of causes are possible:

* Short to VPWR in the harness or HO2S
* Water in the harness connector
* Open/shorted HO2S circuit
* Corrosion or poor mating terminals and wiring
* Damaged HO2S
* Damaged PCM
* Excessive fuel pressure
* Leaking/contaminated fuel injectors
* Leaking fuel pressure regulator
* Low fuel pressure or running out of fuel
* Vapor recovery system
* Air leaks after the MAF
* Vacuum Leaks
* Improperly seated engine oil dipstick
* Leaking gasket
* Stuck EGR valve
* Leaking diaphragm or EVR
* Oil overfill
* Cam Timing
* Cylinder compression
* Exhaust leaks before or near the HO2S(s)

the idle up and down is because the electronics ist stuck in a try to compensate, overcompensate, reset cycle

Posted on May 29, 2009

  • 12 Answers

SOURCE: engine r.p.m. go up and down in idle

air hose leak.

Posted on May 30, 2009

  • 110 Answers

SOURCE: have code 1131 1151 how do i fix it

problem in upstream ox sensors, check for vacume leak before replacing sensors

Posted on May 11, 2010

  • 5537 Answers

SOURCE: check engine light comes on

Both of those Codes are for the upstream O2 sensors on both sides of the engine. The code is saying the engine is running lean. It is also saying the O2s' are not switching. Check the connections with the motor off.

Then it is necessary to test the O2's for operating range. Check with Autozone or Oreillys for your specs or they may test them for you if you take them off and bring them in.

Assuming that the engine is truly running lean, check for loose Vacuum hoses and for leaks on the Intake manifold. Using a water spray bottle or choke cleaner that is safe for plastics and rubber, lightly spray around seams and any Solenoid with a Vacuum line. Do this with the engine running and if you affect the RPM, service the part that is leaking.

Posted on Feb 05, 2011

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