hi all , just wondering how easy it is to replace the 2 port boost solenoid on my 02 wrx ? is it a simple swap ? or does it need mapping again or anything ?

 

Its easy enough to do ,but you will need a tweak to your map/remap to gain the best out of it from a decent mapper.

 

its an easy job just 2 bolts and 2 vac lines but why would you want to change just for a 2 port? its common to change it for a 3 port but will need mapping straight away.

 

just had it mapped on standard 2 port and got good results , so thought if i get another 2 port it might not need mapping ?

 

whats wrong with the one you have already?

 

Ive got a 2 port coming off my car soon. Fully functioning. ( i'm having a 3 port and a few other bits then remap)

 

Unless it's died in the mean time it seems like change for change sake You arent going to gain anything.

 

Dave,

As said last night mate. Get shot of that Bailey’s DV12 and take it from there.

Swap it out for a OE recirc DV but maybe worth getting it on the rollers or getting mapper to check the AFR’s once changed.

Steve

 

Swapping back to a recirculating DV shouldn't need the map looking at... VTA DVs just make it run rich for a moment once you go back on throttle as it has lost some metered air - going back to recirculating should just re-address that issue.

 

Newbies should be made to repeat this and write it out 100 times!

 

To be honest it would be safe to check afr readings with recirc on.
Depends how its been mapped by the mapper.

Dave, you got a copy of your map you can post with the afr readings at the time of the map?

I recall a ****ty vta will make it run lean more tan anything?

If I'm wrong I'm wrong. But I'd get it checked after.

Steve

 

VTA would make it run rich as it's lost metered air and therefore the ECU will inject more fuel than it needs to when you get back on the throttle. VTAs are designed for MAF-less setups really where you want to get rid of the unwanted pressure ASAP

 

i have a copy steve yeah , ill post it tommorrow did you get a telling off for being late

 

 

Vta's tend to make cars run rich due to the metered air being vented,if your car was mapped with a recirc then you add a vta,it can require a map tweak,but if it was mapped with a vta fitted,a map tweak is not always needed when going back to a recirc.

 

i think it was mapped with recirc ? i had a vta on it when it went in and asked for a recirc to be fitted but they could of fitted it after the mapping was carried out ?