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80,000 miles on your plugs? Posted by MI-Roger [Email] ![]() ![]() In Reply to: Codes: P1312 , P1334 , P0420...Oy, Rob in OH, Sun, 12 Dec 2010 12:51:19 Members do not see ads below this line. - Help Keep This Site Online - Signup |
A set of plugs is under $8 so I change mine every 10K to 20K miles. All your codes might be caused by bad plugs since the Trionic system used the plugs both to create the spark and to act as sensors to determine the precise moment of ignition.
With new plugs installed and codes cleared, drive the car for a while and see if they return.
With 170K miles on the odometer it would not be a waste of money to replace the O2 sensors now also, although they will cost nearly $200 for the pair.
2000lpt Sedan with 289,400 miles
posted by 98.250.156...
_______________________________________ Saabs owned: 2008 9-5 Aero Sedan, sold at 227K miles 2006 9-3SC 2.0T - Wife's daily driver 2000 Viggen Convertible - Sold May, 2022 1964 Quantum IV Formula Car - Retirement project 2000 9-5lpt Sedan, sold at 318K miles
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