Having problems with your Pontiac Sunfire ?

Oxygen sensor heater...ready Evaporative system...not ready A/C Oxygen sensor heater...ready Evaporative system...not ready A/C system refrigerant...not supported Comprehensive component...ready Secondary air system...not supported misfire... ready EGR system... Not supoprted Oxygen sensor... not ready Heater catalyst... Not supported Catalyst. I was advised by one of your technicians to try running the vehicle for a few miles. I've already driven it for at least 800 miles and still not fixed

Posted / edited by AnonymousUser on : 06-07-2020

Answers :

The only way to fix this is using a data scanner. In order for the monitors to run the air and the coolant temp sensor have to be under 160 degrees and within 10 degrees of each other on a cold start. . If one of the sensors is defective the monitors will never run.
\015\012Not suported only means your car does not have that option for that test. Its the ones that say not ready that matter.
\015\012As far as the radio goes you may have a defective radio and about the only way to know for sure is to replace it.
\015\012What we do is let the car sit for at least four hour or preferably overnight. Then we hook up our scanner before we start the car. If the sensors arnt under 160 we wait longer or we heat or ice one up to get them to within ten degrees of each other but still under 160. Having the car sit overnight the sensors should be exactly the same give or take a degree. If they are way off then one of the sensors is defective. With a infrared temp gun its easy to determine which one is faulty.
Repair Help & Product Troubleshooting for Pontiac Sunfire

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