TRIO

so i keep getting P1491 egr insufficient lift.

both O2 sensors are new.
Cat is new
EGR has been replace 3 times
egr ports have been clean spray poked drill bla bla bla
intakes manifold is been clean poked bla bla bla
no mods

what a my missing here? i need it fix by tomorrow am way over do on smog. i hate this car i need to sale it but i need to smog.

minilogoguy18

You should have downloaded the service manual before throwing parts at it, you need to check the EGR control solenoid valve and CVC valve next to the driver shock tower. The EGR lift valve and ports aren't the only components to the system.

TRIO

don't worry those parts had to be replace no matter what and the cvc was check i even swap with another one it works fine i check the valve next to the canister as well it works fine the evap or what ever is working good. i have the manual been having it but the book only tells me what i already know and done.

what a my missing..?