Car Had New Plugs New Fuel Filter New Egr Valve And Has A Slight Miss On Idle But Otherwise Runs Good Power Is Good! Now It Has A Service Engine Soon Light It Seems Like It Won't Idle Down Past 1400 Rpms Throttle Body Was Cleaned Well With Throttle Body Spray!! Baffled Thanks For Any Info Recieved.!!!!!!!!!!

Car Had New Plugs New Fuel Filter New Egr Valve And Has A Slight Miss On Idle But Otherwise Runs Good Power Is Good! Now It Has A Service Engine Soon Light It Seems Like It Won't Idle Down Past 1400 Rpms Throttle Body Was Cleaned Well With Throttle Body Spray!! Baffled Thanks For Any Info Recieved.!!!!!!!!!!

What kind of plugs? better be NGK Coppers!!

Get the SES codes as that will help things out ALOT

Also, tap the Throttle Position Sensor with the end of a scewdriver. if the idle changes thats your problem.

one more thing. ALWAYS post your vitals. year, make, miles, auto/man etc :)