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B1894 Engine Trouble Code

Meaning of B1894 engine trouble code is : 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.

B1894 Possible Solution:

B1894 Engine

Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. In Key On, Engine Running Self-Test, this DTC indicates that the PSP input did not change state. Steering wheel must be turned during Key On, Engine Running Self-Test PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged.

B1894 Code Meaning :

B 1 8 9 4
OBD-II Diagnostic Body (B) Trouble Code For Engine Fuel And Air Metering Engine Oil Temperature Sensor Malfunction 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.

B1894 OBD-II Diagnostic Body (B) Trouble Code Description

B1894 engine trouble code is about Timing Reference High Resolution Signal A Too Many Pulses.

Reason For B1894 Code

The reason of B1894 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

B1894 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.