U1387 Engine Code Repair
Meaning of U1387 engine trouble code is a kind of network trouble code and U1387 code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,200. Taking your car into a shop will cost you around $210 depending on the car. However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. If you know where the sensor is, you only have to unclip the old sensor and replace it with a new one. Regardless of how you approach it, you should get this fixed right away.
U1387 Fault Symptoms :
- Check engine light comes on
- Engine stalling or misfiring
- Engine performance issues
- Car not starting
If one of these reasons for U1387 code is occuring now you should check U1387 repair processes.
Now don't ask yourself; What should you do with U1387 code ?
The solution is here :
U1387 Possible Solution:
Power Steering Pressure (PSP) Switch Signal Malfunction The PCM counts the number of times vehicle speed transitions from 0 to a calibratable speed. After a calibratable number of speed transitions the PCM expects that the PSP input should have changed. This DTC is set if the transition is not detected. Vehicle towed with engine running Power steering hydraulic concern was repaired but DTC was not erased PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged Check, if possible, if vehicle was towed or power steering service was performed. Observe PSP V PID while checking wires for intermittents.
U1387 Code Meaning :
U
OBD-II Diagnostic Network (U) Trouble Code For Engine
1
Fuel And Air Metering
3
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
8
Cylinder 10 Contribution/balance Fault
7
Ignition Coil A Primary/Secondary Circuit Malfunction
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.
U1387 OBD-II Diagnostic Network (U) Trouble Code DescriptionU1387 engine trouble code is about Ignition Coil A Primary/Secondary Circuit Malfunction.Main reason For U1387 CodeThe reason of U1387 OBD-II Engine Trouble Code is Manifold Absolute Pressure/Barometric Pressure Circuit High Input. |
U1387 the main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit.