Originally Posted by John32
Check the vaccum tubes going to the throttle body and intake mine was cracked and sucking air
Same here & I replaced the intake vacuum hose to the throttle body. But now my 2004 Forenza is idling too low & starts to stall if I turn on the a/c for instance. Now what? I also previously had the P2279 & P0507 codes. I thought fixing the vacuum hose would also fix the idle speed, but now it is too low. Any suggestions greatly appreciated?