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Posted on Feb 18, 2010
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Check engine went on, code came out as po125 - 1999 GMC Sonoma

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  • Expert 193 Answers
  • Posted on Feb 18, 2010
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Joined: Feb 13, 2010
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Insufficient coolant temperature. Probably a bad thermostat, unless you are experiencing near zero temperatures in your town. If that's the case, chances are the light will go out when the weather warms up.

5 Related Answers

Anonymous

  • 2 Answers
  • Posted on Jan 20, 2009

SOURCE: oxygen sensor 2000 galant

The first sensor closest to the exhaust manifold is for the air to fuel ratio. The second one if it has one will be further downstream and checks to see if exhaust is plugged.

Is your car running right especially at idle????

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Anonymous

  • 4 Answers
  • Posted on May 05, 2009

SOURCE: oxygen sensor 2000 galant

Try replacing the gas tank cover. Seriously. If that does not work, it could be the clutch sensor.

Anonymous

  • 40 Answers
  • Posted on Jun 01, 2009

SOURCE: Mitsubuishi Montero sport 1999 problem code

P0173 Fuel Trim Malfunction Bank #2

Jonah Oneal

  • 14092 Answers
  • Posted on Apr 25, 2010

SOURCE: i have check engine light code po125---p1139

PO125 INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP CONDITIONS.POSSIBLE CAUSES - LOW COOLANT LEVEL - STUCK OPEN THERMOSTAT OR FAULTY ENGINE COOLANT TEMPERATURE SENSOR. DID NOT SEE CODE P1139.

roniecon

Ronny Bennett Sr.

  • 6988 Answers
  • Posted on Jul 06, 2010

SOURCE: 2003 toyota corolla please help me with this code po125

Did you bleed the coolant system?This needs to be done,and it should be fine,but you will have to have the code erased too.

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Related Questions:

0helpful
1answer

Code po125
code po125 refers to insufficient coolant temperature for closed loop fuel control causes ---wiring--cooling system---coolant thermostat--ECT sensor ---ECM. Check the level in the radiator. take it to a specialist mechanic for your car
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May 25, 2013 • 2001 Ford Focus
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My 1998 pontiac firebird service engine light came on and my OBD11 scanner produced 2 trouble codes PO125 ( insufficient coolant temperature for closed loop fuel control.the 3800V6 engine over heating and...
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P0125 is the OBD-II generic code for the engine computer, or Engine Control Module (ECM), not detecting enough heat in the cooling system before the fuel management system can take control. The ECM has a predetermined value after you start your vehicle to expect a certain coolant temperature

P0125 OBD II Trouble Code Insufficient Coolant Temperature for Closed Loop...

ecm runs the engine cooling fans

3800V6 engine over heating and heater produces cold air
try these

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try a new radiator cap

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2000 camry locate sensor for code po125
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My Ford Taurus Failed the inspection, we have replaced 1 oxygen sensor, but the reading still failed. Went to the Autozone & & did a reading came up with two codes P0430 & P0125, is this to...
PO125 means the ECM sees the engine is too cold to go into closed loop and runs rich for too long.
PO430 means the ECM doesn't like what it sees coming out the exhaust.
I would check the thermostat and make sure the engine is getting up to 195-200 degrees after 5 or 10 min of drive time, and if it is then check the temp sensor for the ECM to make sure it is reading the engine temp correctly.
Fixing the code 125 should take care of the code 430.
Read full answer
Jun 24, 2012 • 2001 Ford Taurus
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2003 toyota corolla please help me with this code po125
Did you bleed the coolant system?This needs to be done,and it should be fine,but you will have to have the code erased too.
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Jul 06, 2010 • 2004 GMC Envoy
5helpful
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I have check engine light code po125---p1139 toyota 4runner v6
PO125 INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP CONDITIONS.POSSIBLE CAUSES - LOW COOLANT LEVEL - STUCK OPEN THERMOSTAT OR FAULTY ENGINE COOLANT TEMPERATURE SENSOR. DID NOT SEE CODE P1139.
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Apr 25, 2010 • 1999 Toyota 4Runner
2helpful
3answers

Shows trouble code PO125 coolant temp. to low. replaced thermostat.no change still shows same code after driving 35 miles.
I would have the OBD II scanner clear the codes. Then if the code still pops up, I would have the coolant temperature sensor looked at.
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Oct 07, 2009 • 2002 Mercury Mountaineer
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Code 4617112 on 1994 Honda Accord
these codes make no sense , who gave you these codes,should be like a po125 or po300 something like that with po then a #. good luck.
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Oct 05, 2009 • 2004 Honda Accord
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Mitsubuishi Montero sport 1999 problem code
P0173 Fuel Trim Malfunction Bank #2
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May 31, 2009 • 1999 Mitsubishi Montero Sport
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98 ford ranger xl 2.5
401 might have been caused by 125. The exhaust gas recirc is likely to be inefficient or not working until the engine is at working temperature. PO125 is the engine not reaching operating temperature.

Clearly the fault(s) are intermittent or borderline. The engine might not be warming up correctly or there might be a sensor or wiring fault.

Make a start by checking the thermostat...
Read full answer
Dec 30, 2017 • 1998 Ford Ranger SuperCab
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