1997 Nissan Maxima Q&A
1997 Nissan Maxima Question: check engine light/emissions failure
Took car in to get check engine light codes: P0450 Evaporator emission control system pressure sensor malfunction, P1105 MAP/BARO pressure switch solenoid valve and P1445 Evap canister purge volume control valve. Where can I purchase these without spending an arm and a leg? - wrangler122002
The Evap codes may be all related they all work together one mess ups you will get all the codes, so change the MAP sensor first, after that try to look for any Leaks in the Evap system i would start with the gas cap - sinautoscan.com
You are wasting your money if you are going to start replacing parts without diagnosing the problem first. The diagnostic codes are meant to give you a hint as to where to start looking. My thought is they are all related to one issue, and it's possible none of the parts you mention will fix the problem. - Bret Bodas
The EGR valve can become clogged with carbon, which causes the Check Engine Light to illum...
got an O2 sensor changed out, had an evap canister replacement, and had Auto-Zone check the light for codes and both they and the Tires Plus guy get the P1447 code, but the Tires Plus guy also got ...