Vacuum sensor thingies on firwall

[Sjd6795]

Just curious as to what these are for? I notice I don't have any vacuum lines running to them but the sensors are still connected.

 

[95_gsx_2g]

Those are for emissions! Most Dsmers eliminate them unless you drive more then 5k miles a year.

 

[Sjd6795]

Those are for emissions! Most Dsmers eliminate them unless you drive more then 5k miles a year.

Ok cool so no worries with keeping them like they are for now?

 

[95_gsx_2g]

Yeah no worries if it's under 5k miles a year. It might throw a code if you dont have a tuning software like ecmlink to ignore emission stuff.

 

[Sjd6795]

Yeah no worries if it's under 5k miles a year. It might throw a code if you dont have a tuning software like ecmlink to ignore emission stuff.

Interesting.. I do get a code while cruising around 2k rpm mostly above 60mph. It will only stay on for a second then dissapear. Nothing saves to spending codes or stays on long enough to read. Could this be what's causing that?

 

[Kryndon]

Pontentially. Both solenoids are for the EGR system. One controls the vacuums off the EGR valve itself, and the other controls the vacuum nipples off the throttle body. As long as you leave them electrically connected, it will not store a permanent CEL code on the dash. I have it the same way, disconnected from the vacuums but connected with the plugs. Every so often I get a pending code related to the emissions but it clears itself out.

Also not sure what the 5k miles per year has to do with keeping them on.

 

[95_gsx_2g]

He answered that above a bit better then I could as for my emission solenoids been deleted for quite some time now. I could definitely see it causing a code to come and go. 5k miles or less and emissions dont matter you can straight pipe etc.