Check U1994 Engine Code
When you check engine light came on code U1994 the reason should be . However your vehicle's manufacturer may have a different definition for the U1994 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.
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 $200-$300 depending on the car, but that's usually the cost of parts because the labor is relatively simple.
U1994 Possible Solution:
In-line Ford engines, along with those of most other manufacturers, begin the numbering of cylinders at the front and proceed in numerical order toward the back. In the V-engine design, Ford follows a similar design with the number one cylinder at the front left of the engine. In the V-6 configuration, cylinder 4 is at the front right of the engine and in a V-8, cylinder number 5 is in that location. Other manufacturers sometimes use an alternating pattern in the V-engines.
U1994 Code Meaning :
|OBD-II Diagnostic Network (U) Trouble Code For Engine||Fuel And Air Metering||Injector Circuit Malfunction - Cylinders||Crankshaft Position Sensor A Circuit Malfunction||Timing Reference High Resolution Signal A Too Many Pulses|
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.
U1994 OBD-II Diagnostic Network (U) Trouble Code DescriptionU1994 engine trouble code is about Timing Reference High Resolution Signal A Too Many Pulses.
Reason For U1994 CodeThe reason of U1994 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.
U1994 DTC reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be caused by the wiring to the sensor itself.