Hi. I have noticed that all my dashboard lights come on when I turn the ignition to on position except my engine light. I have tried three different auto shops that say they cannot communicate with the diagnostic computer. I have searched all fuses and cannot find any issue with them. I am not a mechanic and was wondering if thus could be a blown computer or maybe just a damaged relay somewhere. My fuel consumption has dropped 30 to 40 percent. I suspect that this may be a result of faulty something except I can't get any trouble codes. Thanks for anybody who may have some insight into this.
