Is this MAP source ok?

[Nate355RS]

My plan is to use the P port off the throttle body and T it off into the fuel pressure solenoid and boost gauge. Then use the B port as the source for my MAP sensor.

This would probably work well for the MAP, but would this be a problem for my AFPR, fuel pressure solenoid, or boost gauge?

 

[92AWDHX40]

http://www.dsmtuners.com/forums/bolt-tech/447682-pcv-feasible-boost-source-map.html



http://www.dsmtuners.com/forums/newbie-forum/396138-speed-density-map-sensor-help.html

 

[Nate355RS]

I appreciate the links, but neither address my question.

The setup I'm talking about is identical to the pic above, except the B port would not go to the FP solenoid, but go directly to the MAP.

 

[92AWDHX40]

Im in the process of getting my map and haven't gotten to that yet
where else can you source it from, or other options?

 

[snowborder714]

I personally would not trust a throttle body source for the MAP sensor. It needs a clean, strong, dedicated signal straight from the intake manifold. You can see in this link how I installed my MAP sensor when I was running a 1g intake manifold. If you don't have a direct thread sensor like I did, you can always put a hose barb and run a very short section of vacuum line between the two. The shorter the better.
http://www.dsmlink.com/wiki/sdhose?s

 

[Nate355RS]

I kind of feel like I'm in the twilight zone.

I respect the knowledge you have, but I don't think my post is being read. What I'm talking about would give the MAP a dedicated source straight from the IM.

The FP solenoid and boost gauge would get their source completely from the TB emission port

 

[snowborder714]

I may have misread it, but as long as you have a dedicated source straight from the manifold, you'll be fine.

The solenoid getting a source from the throttle body would be ok, as it's not a crucial part. As for the boost gauge, you'd have to evaluate if it reads properly and consistently all the time to see if your source is stable enough.

I don't know if I'd trust an AFPR off the throttle body though. It's a more crucial part that needs a good source.

 

[Nate355RS]

That's what I was thinking too. The AFPR would be hooked to the fuel pressure solenoid and the solenoid would be hooked to the TB nipple and the boost gauge. I guess the real question is if the fuel pressure solenoid will work right if it's being fed from the TB.

 

[snowborder714]

As long as the port sees vacuum, you should be fine.