We have an 05 maxima auto we bought a couple months ago with 160k miles and yesterday in town it just stopped going. Slip light and tcs light came on, and service engine light has been on for catalytic converter. The car stopped responding the gas pedal was doing nothing so we shut it off, waited a second and cranked it back. Lights went away besides ses light and ran fine for a while then did the same thing. It happens at random times but I can replicate it any time by getting on the gas a little bit. Could the catalytic converter be my problem or is it something more?