Hello I've had these 2 codes on my daughters car now about a yr. I gave up for awhile trying to fix them but jumped back in after reading it could very likely be the vacuum pressure sensor or VPS located on firewall. Well I read how to test them that with key on you should measure with key on close to 5 volts on one prong, 2.5 volts middle prong no volts end prong which is ground. What I measured was 4.9 volts power, 4.2 volts middle prong, 0 volts ground prong. I got about these same readings even with old VPS sensor in .I will take car for a ride to see if cel light goes off but I doubt if it will. Any one else run across this problem if so what is the cure?