Check Engine Light On But Car Runs Perfectly Why and What to Do

If they are good, it is probably your harness. Buy some contact cleaner & a tube of Ox-gard from any home improvement store. They can be found in the electrical ... It's been a year and a half since after he disabled the misfire codes, and my car is running fine. I have a 91oct tune as well but I almost ... Get your own TopDon Scanners Below! Great Black Friday Deals through Cyber Monday! ADPro($372): https://amzn.to/47syq4T 10%code for TopScan: ... A dead battery may not only cause the battery light on your car's front panel to turn on, but your check engine light as well. The car ... Bring it in for diagnostics as soon as possible. This isn't as urgent as a flashing light; but, driving a vehicle with an illuminated check engine light for an ... It could pop on because of something minor like a loose or faulty gas cap. It could also mean a major engine failure. Most car problems emanate from a faulty/undercharged battery or a poor electrical connection. With a faulty battery, there's bound to be low ... My check engine light came on no weird noises. No change in how it's driving. I turned it on again today to go to work and it's still on. Still no weird noises ... If the CEL isn't blinking at you it's *probably* something emissions related (loose or bad gas cap). One of my previous cars would go though a ... The check engine light comes on when the on-board computer detects a fault in engine driveability or performance, transmission control system or transmission, ...