Air Injection Solenoids and why you get a CEL
04-03-2012, 10:01 AM
#62
Cool test but where are you sampling from? I actually modified a block-off plate for this purpose but haven't had time to run the actual test. To run a really valid test for this, you would need to attach the gauge to the air pump port on the back of the head not directly to the header. Remember you could potentially have positive pressure in the actual exhaust manifold while still drawing a slight vacuum at the individual induction port. That's the whole point of the Venturi effect.
-- Ed
-- Ed
04-03-2012, 10:34 AM
#66
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Cool test but where are you sampling from? I actually modified a block-off plate for this purpose but haven't had time to run the actual test. To run a really valid test for this, you would need to attach the gauge to the air pump port on the back of the head not directly to the header. Remember you could potentially have positive pressure in the actual exhaust manifold while still drawing a slight vacuum at the individual induction port. That's the whole point of the Venturi effect.
-- Ed
-- Ed
04-03-2012, 11:43 AM
#69
04-03-2012, 03:22 PM
#71
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Cool test but where are you sampling from? I actually modified a block-off plate for this purpose but haven't had time to run the actual test. To run a really valid test for this, you would need to attach the gauge to the air pump port on the back of the head not directly to the header. Remember you could potentially have positive pressure in the actual exhaust manifold while still drawing a slight vacuum at the individual induction port. That's the whole point of the Venturi effect.
-- Ed
-- Ed
04-03-2012, 04:19 PM
#73
Doesn't look wrong.
Would be interesting to see what happens if you install the air-injection system and test above the solenoid. With a good solenoid and then a bad solenoid.
I can't see how Subaru can say it isn't smog related. CARB might be interested to look into this further.
Would be interesting to see what happens if you install the air-injection system and test above the solenoid. With a good solenoid and then a bad solenoid.
I can't see how Subaru can say it isn't smog related. CARB might be interested to look into this further.
04-03-2012, 04:35 PM
#74
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Doesn't look wrong.
Would be interesting to see what happens if you install the air-injection system and test above the solenoid. With a good solenoid and then a bad solenoid.
I
I can't see how Subaru can say it isn't smog related. CARB might be interested to look into this further.
Would be interesting to see what happens if you install the air-injection system and test above the solenoid. With a good solenoid and then a bad solenoid.
I
I can't see how Subaru can say it isn't smog related. CARB might be interested to look into this further.
