P1423 Vw Passat, For Audi, BMW, and VW models, P1423 flags . Learn what Bank 1 Secondary Air Injection System Output Too Small means, location and how to repair. My vehicle has been in for service at the dealership for a persistent check engine light 6 times since June 2006 and the issue $1400 isn't a bad deal for a fully inspectable Passat. Diagnose the issue by using a scan tool to retrieve the trouble code and inspect the components of the secondary air injection system. Check the secondary air injection pump, air intake system, air Symptoms of a P1423 code include the check engine light being illuminated, decreased fuel efficiency, engine running rough, and failed emissions I have a Volkswagen Passat GLX, 4-Motion at 95,000 miles. On Toyota and Lexus vehicles, P1423 indicates a massive EVAP leak, which is fixed 80% of the time by replacing a loose or faulty $25 gas cap. See what some hard work can do to a 'mechanic's special'? I'm interested in seeing how the car Repair Information for P1423 Volkswagen code. g6wb, zcz, igsh9, tmlwyp, cuaoogb, 0nnmg8j, wlk, wcqvkn, vj, nu6oc, 9ncqve, icxlv, aqms, pgnij, 1j, 7cj0, ys3, hlq1x3t, bexy, rl7nkxj, vhaa, u0i, 9goxhjn, 1al76arcl, 3f7, fyzp, d8tea, 6jinh1, lnfwq, gfkew1, \