OBD codes

[teppichkopf]

Any idea of what needs to be checked/ replaced for codes P0113 and P0118 (Intake Air Temperature Circuit High Input / Engine Coolant Temperature Circuit High Input)?

[nipper]

well usually if the ecu tmep sensor is throwing a code, its bad (no gray in that area). I would replace that and see how the other reacts. It can be a cause and effect thing, not sure.

 

nipper

[2X2KOB]

How's it running? Might reset the codes and see if they come back. I think sometimes codes pop in response to transient conditions.

[SaltCar]

The factory service manuals have flowcharts to diagnose from trouble codes, step by step. Professional manuals like Mitchell also have them.

 

Here is a link to some troublecode information but it looks like you are past the point that they might help.

 

http://www.troublecodes.net/Subaru/

[1 Lucky Texan]

do post #3, if codes come back, do post #2 cause the air flow sensor is prolly WAY more expensive than the temp sensor. Reset the ECU after any work on the system.

 

 

Carl

[Cougar]

Any idea of what needs to be checked/ replaced for codes P0113 and P0118 (Intake Air Temperature Circuit High Input / Engine Coolant Temperature Circuit High Input)?

 

The code says it is for high circuit input so I would think this means the circuit to the sensor is probably open. I would check for a disconnected connector at the sensor possibly. It may be near the MAF area.

 

The sensor may be bad also but this could be checked with a ohmmeter.

[1 Lucky Texan]

The code says it is for high circuit input so I would think this means the circuit to the sensor is probably open. I would check for a disconnected connector at the sensor possibly. It may be near the MAF area.

 

The sensor may be bad also but this could be checked with a ohmmeter.

 

Good idea, wonder if these wires share a harness somewhere that got cut/burned or a connector or ground connection?

 

 

Carl