Richard McCuistian, ASE Certified Master vehicle Technician

Technical Reviewer in ~ 6294.org

Written through 6294.org Staff writers - update on October 26th, 2021

What does the P0125 code mean and what reasons it? This overview will aid you find out more.

What go the P0125 code Mean?

Diagnostic trouble password (DTC) P0125 code represents “Insufficient Coolant Temperature because that Closed Loop Fuel Control.” It might register if the engine does no reach its typical operating temperature.

You are watching: P0125 insufficient coolant temperature for closed loop fuel control

A similar code is the P0128, i m sorry is a lesser manifestation the this exact same condition. Usually the P0125 means the engine is running an extremely cold – the P0128 method it’s running only slightly cold. However both usually have the same root cause(s).

The concern probably won’t negatively impact drivability, however you may notification decreased fuel economy and also poor heater performance.


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One possible cause of password P0125 is damaged coolant temperature sensor wiring or connection.

An engine’s operation temperature affect its performance. If the engine runs as well cold, fuel economy and even engine mechanically health will be impacted. Again, fuel economy will it is in reduced, yet secondly, sludge can form in the crankcase on one engine the runs as well cold for too long.

Let’s every remember that some codes might illuminate the MIL (Check Engine) irradiate without noticeable symptoms, and those codes have tendency to be ignored by many drivers.

The problem with the “ignore the light because I recognize what the code is” strategy is that, unless you have an energetic misfire (it flashes if a misfire is bad enough), the MIL light just knows just how to tell friend there’s a problem – it no tell girlfriend how plenty of problems the ECM/PCM has actually detected.

See more: What Is The Gcf Of 11 And 44 And 11, Use Lcm To Get Gcf Of 11 And 44

So, because that example, if you drop by the parts store or use your own scanner and you get, for example, a P0125 code and also then think “I’ll take care of the later,” when “later” ultimately arrives, you uncover you have around five or six various problems that have actually piled up behind the first one that illuminated the MIL.

Products discussed in this Guide


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Coolant Temperature Sensor
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Thermostat

Any information noted on this Website is for informational functions only and is no intended to replace consultation with a experienced mechanic. Read our full disclaimer here.


paper Under : OBD-II problem CodesTagged with : coolant-level-sensor , coolant-temperature-sensor , thermostat