Big RPM drop when clutching with A/C on?

[Ahsai]

Then it's likely you still have intake/vacuum leak then.

[AviSalem]

41 minutes ago, Ahsai said:

Then it's likely you still have intake/vacuum leak then.

Yep, TRA and TRA2 are at .37.

FRA is .95

FRA2 is .97

[AviSalem]

Hey Guys,

 

So I am slowly trying to get things figured out with the car when I get some free time (I have 7 month old twins). I built a DIY smoke machine I saw on YouTube, I just need a couple more barbed fittings to hold the tube into the vacuum lines. With the car in service mode, I activated the Fuel Evap Purge selection on the Durametric and heard and felt nothing from the valve under the intake plenum that goes to the TB. Could this be stuck open and causing the large evap leak P0455 and causing my issue? Is there a way to clamp off the hose and recheck the TRA values to see if they go normal with no Evap system? 

 

Thanks

[AviSalem]

Any help out there?

[AviSalem]

On 8/20/2017 at 10:17 PM, AviSalem said:

Hey Guys,

 

So I am slowly trying to get things figured out with the car when I get some free time (I have 7 month old twins). I built a DIY smoke machine I saw on YouTube, I just need a couple more barbed fittings to hold the tube into the vacuum lines. With the car in service mode, I activated the Fuel Evap Purge selection on the Durametric and heard and felt nothing from the valve under the intake plenum that goes to the TB. Could this be stuck open and causing the large evap leak P0455 and causing my issue? Is there a way to clamp off the hose and recheck the TRA values to see if they go normal with no Evap system? 

 

Thanks

@Loren @JFP in PA @Ahsai I need help guys, please! Does the durametric even operate the regeneration valve under the intake plenum or is that activation for the valve by the carbon canister?

[JFP in PA]

11 minutes ago, AviSalem said:

@Loren @JFP in PA @Ahsai I need help guys, please! Does the durametric even operate the regeneration valve under the intake plenum or is that activation for the valve by the carbon canister?

 

The problem with trying to remotely diagnose the position of the valve under the intake is that this valve can stick either open or closed, rendering the remote test useless.  Pull the valve and asses its condition (open or closed), and if closed try and bench test it with a 12V source.  These valves can sometimes be cleaned out with compressed air, but if it continues to stick in either position, can it and get a new one.