U1086 Engine Trouble Code
Meaning of U1086 engine trouble code is : U1086 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.
U1086 Possible Solution:
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.
U1086 Code Meaning :
|OBD-II Diagnostic Network (U) Trouble Code For Engine||Fuel And Air Metering||Ambient Air Temperature Sensor Circuit Low||Ignition/Distributor Engine Speed Input Circuit Malfunction||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.
U1086 OBD-II Diagnostic Network (U) Trouble Code DescriptionU1086 engine trouble code is about Ignition Coil A Primary/Secondary Circuit Malfunction.
Reason For U1086 CodeThe reason of U1086 OBD-II Engine Trouble Code is Ambient Air Temperature Sensor Circuit Low.
U1086 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.