Logo

B3400 Engine Trouble Code

Meaning of B3400 engine trouble code is a kind of body trouble code and B3400 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. Unfortunately, the average replacement cost is around $2,000 and you can't do it yourself unless you're an experienced mechanic.

B3400 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 B3400 code is occuring now you should check B3400 repair processes.
Now don't ask yourself; What should you do with B3400 code ?
The solution is here :

B3400 Possible Solution:

B3400 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.

B3400 Code Meaning :

B 3 4 0 0
OBD-II Diagnostic Body (B) Trouble Code For Engine Ignition System Or Misfire O2 Sensor Heater Circuit Malfunction Cold Start Injector 1 Malfunction Shift Solenoid E Performance or Stuck Off

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate.

B3400 OBD-II Diagnostic Body (B) Trouble Code Description

B3400 engine trouble code is about Shift Solenoid E Performance or Stuck Off.

Main reason For B3400 Code

The reason of B3400 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.

B3400 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.