Roh92cp
Well-Known Member
- Joined
- Jun 27, 2015
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- Fort Kent Maine
- First Name
- Shawn
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- OW GTPP Whipple
Your in good hands with Ken then, but I would agree at this point sounds like you have an air leak. Check the following for leaks that could cause unmetered air. You can check all this yourself with little to no tools needed.
1. Throttle body oval O ring should be in place in the groove, but while you have it off check the bypass operation by pushing it open and letting it close from the inside. You will see the bypass opening and blade once the throttle body is off.
2. Make sure all the silicone couplers are sealed, don't over tighten the clamps as they can crush the plastic elbow. You should be able to see when they squish around and seal on the elbow.
3. Make sure the inlet for the DS valve cover hose is not leaking. You will see this on the bottom of the plastic inlet elbow, it has a push in fitting into a rubber grommet if distorted or pushed out of place by improper placement like to short of a hose it can leak air.
4. Make sure the MAF is oriented properly, meaning it's pointing the right direction. The red locking tab should be facing down. Also make sure it's not leaking, if it's over tightened it can crush or crack and cause air leakage.
5. Check and make sure pass side valve cover to SC vac port is not leaking. If you have a oil catch can make sure it's also not leaking air.
6. Check the drivers side vac ports are connected properly and not leaking. Top one should be blocked and the bottom 2 should be connected one to the brake booster and other to the EVAP soleniod. Refer to picture above step 138.
7. Check to make sure the bypass hose is connected to the bypass (you can see this with throttle body off) you should check to see the hose connected to the nipple on the black bypass diaphragm, and has a clamp or zip tie on it. Make sure the other end of the hose is connected to the manifold port and not leaking.
1. Throttle body oval O ring should be in place in the groove, but while you have it off check the bypass operation by pushing it open and letting it close from the inside. You will see the bypass opening and blade once the throttle body is off.
2. Make sure all the silicone couplers are sealed, don't over tighten the clamps as they can crush the plastic elbow. You should be able to see when they squish around and seal on the elbow.
3. Make sure the inlet for the DS valve cover hose is not leaking. You will see this on the bottom of the plastic inlet elbow, it has a push in fitting into a rubber grommet if distorted or pushed out of place by improper placement like to short of a hose it can leak air.
4. Make sure the MAF is oriented properly, meaning it's pointing the right direction. The red locking tab should be facing down. Also make sure it's not leaking, if it's over tightened it can crush or crack and cause air leakage.
5. Check and make sure pass side valve cover to SC vac port is not leaking. If you have a oil catch can make sure it's also not leaking air.
6. Check the drivers side vac ports are connected properly and not leaking. Top one should be blocked and the bottom 2 should be connected one to the brake booster and other to the EVAP soleniod. Refer to picture above step 138.
7. Check to make sure the bypass hose is connected to the bypass (you can see this with throttle body off) you should check to see the hose connected to the nipple on the black bypass diaphragm, and has a clamp or zip tie on it. Make sure the other end of the hose is connected to the manifold port and not leaking.
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