Check Engine Light is back on after fuel throttle cleaning and oxygen censor replaced

Hi guys, I just posted last week that my check engine light was on and the dealer wanted to replace fuel injectors. But after the fuel throttle was cleaned and oxygen sensor was replaced the check engine light went off. However, yesterday the check engine light came back on. I am talking it back to the dealer, in a couple of days. Where can I go to get to get the error codes read so I have them before I go back to the dealer? Any ideas what might be the proplem? Around 128,000 runs fine, around 40 miles per gallon. Last time I had the oil change dealer nothing came up on the 30 point inspection. Thanks so much, you guys were a big help last tim

 

Thanks, I know that I don't. When I went to the other dealer, the checked them out and they were fine. You are correct, I am doing this to pass all the emissions test. The dealer did say I need to drive it around a while before I take it to the emission test. I will post the codes when I find out. Thanks again for your response.

 

Just went auto parts store, had the code read P301, clyinder misfire. But after it was read, check engine light went off again. I metioned before, just had the oxygen censor replaced and throttle body cleaned. Any advice or tips would be great thanks again, especially Sielerts

 

Hi Patrick,
I got the spark plugs changed at 105,144 miles. Did not mention any things about spark plugs, but they did say something about a fuel injector. I am might be afraid the fuel injector for that cylinder. Around how much should that cost to replace. Thanks.