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

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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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?.

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.

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 ?

Bump

sounds like there might be something else going on

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 .