P1124 & P1126 Codes What to look for with Durametric?

[JFP in PA]

Your comments about no idle change and strong suction tells me you probably need to start with the AOS. The best diagnostics for the AOS is to used a digital manometer connected to an oil fill cap to measure the vacuum level, which should never exceed five inches of water (a relatively weak vacuum signal).

[Gelbster]

JFP's great recommendation is not expensive.
I got my slightly used ,Pyle digital Manometer "PDMM01" for $20.
https://www.amazon.com/Meters-PDMM01-Digital-Manometer-Measure/dp/B005FU5HFI
I bought a new oil filler cap.The old one was used to modify for a 1/8" tube fitting.Search for details/photo.
Hopefully you will seldom use the tool. But when you do, the information is invaluable and easy to read.
Replacing an AOS is a tedious job but if it was unnecessary ..... grr.
If you do catch an AOS failure early, there is less oil to clean out of the intake system.
Let us know how it works out and good luck !

[BFeller]

Originally Posted by JFP in PA

Your comments about no idle change and strong suction tells me you probably need to start with the AOS. The best diagnostics for the AOS is to used a digital manometer connected to an oil fill cap to measure the vacuum level, which should never exceed five inches of water (a relatively weak vacuum signal).

Thank you for the input. I had the symptoms backwards thinking no change in idle meant it was OK.