what are these plugs?
04-01-2009, 08:43 PM
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what are these plugs?
I'm trying find out what these random plugs are that sit near the firewall behind the intake manifold. The one with 2 studs in it is tied to the firewall down by the cycling valve. the yellow one i have no idea. the three stud one looks like it could travel by the oil fill tube toward the o2 sensor, which by the way has been cut totally free. I will post a separate topic on that shortly.
04-01-2009, 11:01 PM
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yes i still run CV. ugh. this thing is a mess. the PO lost more stuff than i care to think of and im suprised the engine still runs.
btw, boost is perfect on the car. it will overboost up to 19,20 psi, then settle back down to 16 and run like a scalded dog. i didnt see any loose connections on the CV when i performed head gasket change.
btw, boost is perfect on the car. it will overboost up to 19,20 psi, then settle back down to 16 and run like a scalded dog. i didnt see any loose connections on the CV when i performed head gasket change.
04-01-2009, 11:39 PM
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The yellowish one is for the cycling valve and the lower left black one is for the o2 sensor. Where does the other go? Doesn't show up too well in the pic.
04-02-2009, 01:57 PM
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the top round with three male studs falls off behind the engine just to the driver's side. from what i can tell, it stays inside the firewall, but i have no idea where i goes down there. ive seen a wire move on the oil cooler when i tug really hard on this plug. it could be just rubbing on it, or it could be the same line.
correction to earlier post: i am NOT running with a CV. i dont understand this now. the banjo bolt runs straight to the WG, which is single port. how does the computer control boost pressure without a CV or any apparent manual or electronic boost controller added on?
correction to earlier post: i am NOT running with a CV. i dont understand this now. the banjo bolt runs straight to the WG, which is single port. how does the computer control boost pressure without a CV or any apparent manual or electronic boost controller added on?
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04-02-2009, 05:55 PM
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... how does the computer control boost pressure without a CV or any apparent manual or electronic boost controller added on?
04-02-2009, 06:00 PM
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04-03-2009, 04:50 PM
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running authothority stage II chips with k27 turbo and MAF. Im pretty sure the WG is aftermarket single port. its got a bright red head on it. so i guess the WG is just popping off around 16psi, then?
the o2 sensor was completely cut from the system. i spliced in an oem last night and now AFR readings are pretty consistent and at 14.7 cruising. before the install they would run the gammut from 11-16 and really like sitting on 12. idle was always around 14.7 though. This should definately help gas mileage.
the o2 sensor was completely cut from the system. i spliced in an oem last night and now AFR readings are pretty consistent and at 14.7 cruising. before the install they would run the gammut from 11-16 and really like sitting on 12. idle was always around 14.7 though. This should definately help gas mileage.