OK, stupid fuel question.....Going lean

J

Jsup

Member
OK,

I know I'm going out on a limb here but I am going to throw out something stupid.

The Condition:

At light throttle I get popping through the exhaust indicating a lean condition. That condition is strictly on the passenger side of the vehicle

Each valve cover has a provision for a PCV. I re used the stock equipment. One side goes from the valve cover to the manifold, that is the drivers side.

The passenger side goes from the valve cover to the Throttle Body Base.

Now, the PCV is located in the drivers side cover. Is it possible the PCV should be in the PASSENGER side cover.

The fitting that is currently on the PASSENGER SIDE is just a 90 Degree fitting that accepts the hose and is from the stock motor. There is no check valve in there, it is wide open.

COULD IT BE that the PCV needs to be on the RIGHT side cover in order to cut down the air going to the passenger side throttle body? Could the placement of the PCV on the drivers side, restricting the airflow to the intake, make the passenger side run lean by allowing TOO MUCH air to the intake?

Just wondering.

I know, it's a long shot, but what do you think?
 
since the pvc has almost no real effect on the engines basic function,
(remember the Chevy small block engines had road draft tubes long before they had PVCs)
and the pvc is simply used to significantly reduce emissions and slightly lower the crank case pressure due to high pressure gases seeping past the rings,
the obvious test is to remove and plug one or both hoses connected to the intake or throttle body and see what if anything changes.
(and it most likely will change because your basically now running a self installed vacuum leak)
btw you CAN,T RUN AN OPEN LINE TO THE VALVE COVER WITH A 90 DEGREE OPEN ADAPTER YOU NEED A TRUE PVC, that closes at idle

READ

http://en.wikipedia.org/wiki/PCV_valve

pcv_function.gif
 
The open 90* elbow is on one valve cover and the PCV is on the other. Are you saying that I should have 2 PCVs?
 
"The open 90* elbow is on one valve cover and the PCV is on the other. Are you saying that I should have 2 PCVs?"

no IM suggesting you remove the open 90 degree elbow totally


standard vacuum connections
VenturiVacuum01.jpg


manifold to power brake booster
manifold to distrib vacuum advance
pvc to carb or air cleaner assembly
 
grumpyvette said:
"The open 90* elbow is on one valve cover and the PCV is on the other. Are you saying that I should have 2 PCVs?"

no IM suggesting you remove the open 90 degree elbow totally


standard vacuum connections

manifold to power brake booster
manifold to distrib vacuum advance
pvc to carb or air cleaner assembly
Click to expand...

WILL TRY! THANKS
 
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