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p0300 random misfire and p0451

Old Mar 26, 2015 | 01:41 PM
  #11  
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Ok thanks for the information I found the info in the workshop manual (RAVE). It said the same exact thing you said. To take the Plenum chaber off, undo fuel lines, and release pressure. Taking off my coils should be easy because I already have the wires labeled. Can't wait to get working on it

Thanks for the help I'm pretty confident that your right on some of the injectors being stuck wide open.

By the way your really know ALOT about cars, I consider myself very lucky and I dare say blessed to have your help. Thanks again
 
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Old Mar 26, 2015 | 02:52 PM
  #12  
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I ditched the plastic shyt PCV and added an in line check valve type fitting (looks like a fuel filter and has a ball/valve in it that only allows flow to go one way). Been running fine since I did the rebuild 3 months ago. The old PCV was all cracked and stuck in the cover hole...
 
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Old Mar 26, 2015 | 03:04 PM
  #13  
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Originally Posted by USNAVYORDNANCE
I ditched the plastic shyt PCV and added an in line check valve type fitting (looks like a fuel filter and has a ball/valve in it that only allows flow to go one way). Been running fine since I did the rebuild 3 months ago. The old PCV was all cracked and stuck in the cover hole...
Just to be clear you added a check valve to keep the fuel in the rail to make for quicker start ups, correct?
 
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Old Mar 26, 2015 | 03:18 PM
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No. The PCV is for engine vacuum. On top of the passenger side valve cover towards the rear. There's a PCV in that tube coming out of the valve cover. Hose from it goes to the intake plenum.
 
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Old Mar 26, 2015 | 03:22 PM
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Originally Posted by USNAVYORDNANCE
No. The PCV is for engine vacuum. On top of the passenger side valve cover towards the rear. There's a PCV in that tube coming out of the valve cover. Hose from it goes to the intake plenum.
Oh ok, I'll be taking apart my plenum tomarrow so would you recommend putting a one way valve or not? If so which way? Lol
 
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Old Mar 26, 2015 | 03:23 PM
  #16  
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No, he's talking about the PCV - Positive Crankcase Ventilation, he's added a check valve to that vacuum line - between the passenger side valve cover and the plenum.

I added a clear filter to that line and ditched the oil separator thingy. It's stepped to drip oil back into the valve cover and allow air to pass but by the time anyone does anything with em they're usually shot (baked, completely closed) and not worth trying to hunt a one of a kind part down for.
 
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Old Mar 26, 2015 | 03:27 PM
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You'll feel the suction sucking towards the plenum.
 
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Old Mar 26, 2015 | 03:41 PM
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Like this right
 
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Old Mar 26, 2015 | 03:43 PM
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.....
 
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Old Mar 26, 2015 | 03:44 PM
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DSC03572.jpg Photo by ranwalk | Photobucket
 
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