Okay when i start up my car in the morning it turns over just fine everyething is cool. after I turn the car on instead of idleing like at 1,500rpm's to warm up maybe 2,000rpm's it stays at 1,000 then goes up slooooooooly like its actually warming up. Then it idles lower and lower until it sputters out can someone help me this is getting me annoyed and im stumped. HELP!