20 Most Recent 2003 Kia Rio - Page 2 Questions & Answers

Disconnected what line?

1st of all did your gas mileage drop? If It's an O2 sensor your gas mileage will be about half. If the car is running normally but you can't get the check engine Light off, It may be Simple. Most cars these days have an Oil Life Sensor that needs to be reset after Oil Changes. Turn your Key On , But Do not START. Pump your Accelerator to the Floor 3 Times In 10 Seconds and turn the key off. Start It up Again And See if that was it.

PLEASE ADD DIAGNOSTICS PERFORMED UP TO THIS POINT ON HOW YOU CAME TO YOUR CONCLUSION

check your maf sensor.

Usually on one end of the fuel rail. It'll have a vacuum line plugged into it.

sorry none of my code calculators will work have tried but if i had the make of the radio but even then i doubt it unless its a clarion radio which i doubt as thats asking for a 8 digit code

sounds like its normal, engine revs will tend to drop when idling and you use power items, this is due to the extra load that is put on your alternator, you could however check the connections of your battery to make sure they are clean and tight, also you could get your battery checked out for a possible cell becoming faulty and it not giving out the correct voltage (13.8v not 12v engine off) maybe it needs replacement, your local tyre & battery shop should be able to test it for you FOC

The only information I can give you is for the track rod end which is 24-34Nm so that should be a good starting point

have oil pressure done ,oil pump could be going out.