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C1681 Engine Trouble Code

Meaning of C1681 engine trouble code is a kind of chassis trouble code and theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $240-$400 depending on the car, but that's usually the cost of parts because the labor is relatively simple.

C1681 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting
If one of these reasons for C1681 code is occuring now you should check C1681 repair processes.
Now don't ask yourself; What should you do with C1681 code ?
The solution is here :

C1681 Possible Solution:

C1681 Engine

Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.

C1681 Code Meaning :

C 1 6 8 1
OBD-II Diagnostic Chassis (C) Trouble Code For Engine Fuel And Air Metering Fuel Temperature Sensor B Circuit Range/Performance Ignition/Distributor Engine Speed Input Circuit Malfunction Crankshaft Position Sensor A Circuit Low Input

The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.

C1681 OBD-II Diagnostic Chassis (C) Trouble Code Description

C1681 engine trouble code is about Crankshaft Position Sensor A Circuit Low Input.

Main reason For C1681 Code

The reason of C1681 OBD-II Engine Trouble Code is Fuel Temperature Sensor B Circuit Range/Performance.

C1681 DTCs may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.