replace 2 port boost solenoid
18 January 2012, 11:33 PM
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replace 2 port boost solenoid
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 ?
18 January 2012, 11:46 PM
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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.
19 January 2012, 07:57 AM
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You arent going to gain anything.
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19 January 2012, 08:40 AM
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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
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
19 January 2012, 08:50 AM
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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.
19 January 2012, 09:46 PM
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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
19 January 2012, 10:13 PM
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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
19 January 2012, 10:38 PM
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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
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
i have a copy steve yeah , ill post it tommorrow
did you get a telling off for being late 
21 January 2012, 02:17 PM
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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
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
21 January 2012, 08:33 PM
#15
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.
21 January 2012, 11:47 PM
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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 ?
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