B1974 Engine Trouble Code

Meaning of B1974 engine trouble code is a kind of body trouble code and when your car's 'B1974 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.

B1974 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 B1974 code is occuring now you should check B1974 repair processes.
Now don't ask yourself; What should you do with B1974 code ?
The solution is here :

B1974 Possible Solution:

B1974 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.

B1974 Code Meaning :

B 1 9 7 4
OBD-II Diagnostic Body (B) Trouble Code For Engine Fuel And Air Metering Injector Circuit Malfunction - Cylinders Cylinder 10 Contribution/balance Fault Timing Reference High Resolution Signal A Too Many Pulses

Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above.

B1974 OBD-II Diagnostic Body (B) Trouble Code Description

B1974 engine trouble code is about Timing Reference High Resolution Signal A Too Many Pulses.

Main reason For B1974 Code

The reason of B1974 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.

Parts or components should not be replaced with reference to only a B1974 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.