Engine bucking like crazy, only sometimes? (Page 3/3) Benn2002 APR 25, 09:02 AM quote Originally posted by cebix: In my experience this code points to a vacuum leak, not the sensor itself. I hope your wrong and I didn't just waste 60$ but it I had a vaccine leak wouldn't the light be on all the time? It was only on during the time when the car would drive itself. Then it would go back off when I restarted the car cebix APR 26, 01:32 PM quote Originally posted by Benn2002: I hope your wrong and I didn't just waste 60$ but it I had a vaccine leak wouldn't the light be on all the time? It was only on during the time when the car would drive itself. Then it would go back off when I restarted the car You know, this is just my experience, we'll se how it goes for you. Those sensors rarely go wrong - it's either their wiring or the vacuum hose that goes out.