Check Engine giving me multiple codes
10-05-2010, 07:57 AM
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Check Engine giving me multiple codes I got my local shop to hook up a diagnostic test to my 99 Z28 because the check engine light is coming on. He said the MAF is bad, something that starts with a V?, and all four oxygen sensors are bad. Now I don't think all of these things are bad so he cleared it and i'm supposed to take it in today and get them to check it out again. I just want to know what you guys think? Could the MAF throw all of this off? Could just one O2 sensor throw all of this off? I will get the codes from him later today, just wanted to post this.
10-05-2010, 08:27 AM
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Cont'd Also, when he cleared the code it had been running for about 10 mins and it stayed off. It stayed off all the way home (about 20 mins). When I started it up again this morning the SES light came back on. I have pass emissions friday and its going to be good and hot after driving 2.5 hrs to the station back home so I'm hoping that would help but I want to fix any serious problems before I go.
10-05-2010, 08:14 PM
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Got the codes...P0102 which is the MAF sensor, P0135 P0141 and P0155 which are all o2 sensors but one...which I'm guessing means they are actually bad cause its not all four...great
10-19-2010, 09:43 PM
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An OBD2 reader should give u some results. Also u can reset the comp with it. It will just come back a little while later. When u pull it it may give u a code or a precise diagnosis according to how good ur reader is. If it just gives u a code there is a sticky somewhere here with all the codes
