Sensors

[Scooby snigs]

Hi could anyone advise. I have recently had the aa out to my imprezza 2.0l sport 1999 due to "check engine" light flickering .the aa chap said it was recording intake air temp sensor fault , I have changed the sensor for a s/h one but the "check engine" light is still coming on intermittently. Don't want to pay dealer price for a brand new sensor if it could be a wiring breaking down .anyone help?please

[stants]

Hi could anyone advise. I have recently had the aa out to my imprezza 2.0l sport 1999 due to "check engine" light flickering .the aa chap said it was recording intake air temp sensor fault , I have changed the sensor for a s/h one but the "check engine" light is still coming on intermittently. Don't want to pay dealer price for a brand new sensor if it could be a wiring breaking down .anyone help?please

Have you reset the edu to clear the codes ?

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[Scooby snigs]

Tried to reset ecu but would.nt clear .was advised to disconnect Battery overnight then reconnect and see if fault appears again . They seemed to think that ecu was really flagging old faults . Hope that makes sense?.

[Greenmamba]

You only need to disconnect Battery for 30 minutes or so. Press the brake pedal a couple of times during that time, then reconnect Battery. All relevant codes should be cleared.

[Scooby snigs]

Hi I have had problems with intake air temp senser which I have replaced but still keep getting check engine light flashing on , not as regular and goes off within 10 second , I disconnected Battery to reset ecu. Could air filter cause this problem ?

[Scooby snigs]

Bump

[Tidgy]

sounds like there might be something else going on

[Mr B]

Sounds like misfire warning to me as repeat issue would have the money light on always, check ignition leads, plugs and coil pack and replace leads/plugs if old or suspect issue found . knock sensor is another one for intermittent blinking money light on subarus .