i have a 2002 ecotec and bought an RK sport intake and when i look there are 2 what look like sensors going into the stock s-tube (they are right next to each other) but there is only one hole in the new intakes s-tube.....someone help me.
There should be only 1 sensor, which is the IAT sensor going into the tubing. Check again and make sure if there is 1 or 2.
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well the second one might not be a sensor but there is something running from the fuel rail to the tube
coming from the fpr? If so Just look at the intake manifold on the drivers side right below the throttle cable there should be a little nipple pull the cover off and attach a piece of vacuum hose to it then route the other side to the front of the fuel pressure regulator. ta da!!! your done.
~Riki
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thanks a bunch.....after looking at the intake manifold i thought that might be where that hose attached but thanks for confirming it.
I have the RKSPORT intake. I had to drill a hole in the plastic tubing to connect the hose from the fuel rail. I believe this hose from the fuel rail measures the air. When I had the hose just laying there without hooking it up to the intake, I was running really rich. I would burn mad gas. So if you haven't done it already, drill a small hole and attach the hose into the plastic intake tubing
"FRIENDS DON'T LET FRIENDS DRIVE STOCK"
a piece of vaccum hose does not messure air...
its a vacuum line for the fuel pressure regulator, engine idling has high vaccum, engine at full throttle has low vaccum, and the vacumm aplied to the FPR is how it changes the fuel pressure. Although the eco is the first car I have EVER seen that takes vaccum form before the TB (where there isn't vaccum, I mean there is buts its alittle more complicated, not gonna get into that) some intakes keep it on the intake, some make you move it to the intake manifold
considering the restrictiveness of the stock intake system it doesn't surprise me that they could generate considerable vaccuum off of it.
But, as was said before just reroute it to the niple on the intake manifold.
-Chris
what if i plug the one on the factory intake, and reroute it to that nipple, NEwayz, i don't supose that will increase the fuel pressure, at least a bit, will it?
wait for it... wait for it... NOW GO!! ---> '02 LS Sport <---
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