My truck failed emissions. CO's were 39.49 and applicable standards are 25.00. What can I check for, new vac. Lines, plugs & wires fuel filter
have the same problem?
Thursday, June 24th, 2010 AT 3:58 PM
Could be the coolant temperature sensor or the oxygen sensor not going into closed loop mode giving fuel when not needed. To include a leaky injector or pressure regulator that will make run rich at all times.