Codes 27, 48
Thread Starter
Race Director
Joined: Jun 2000
Posts: 13,128
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From: Oakland CA
St. Jude Donor '03
Codes 27, 48
I took my 94 LT1 into the shop the other week because it's time for the bi-annual smog inspection and the check engine light is coming on. Well, they did practically nothing the whole week they had the car with them so I picked it up this past Saturday. They did leave some printed pages regarding codes 27 and 48 though. I'm assuming that they at least scanned for codes and this is what they came up with. They had also told me over the phone that the NOX was a bit high. From what I've found Code 27 is for the EGR SOL Valve and Code 48 is for the Mass Airflow Sensor. Should I just replace the Mass Airflow Sensor and EGR Valve or is there a cheaper way to solve this problem?
Thanks!
Thanks!
