nics #1 Does the iac valve affect the AC performance? when i turn on my AC, my idle drops and it starts vibrating. God made man....Everything else...Made in China
Bitter #2 AC idle up valve aka AC air bypass valve. on the firewall, has 2 or 3 vacuum lines and a wire harness with 2 wires. 2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E