1G Speed density and PCV questions

[obx tsi]

So I have just purchased a car with speed density. It looks like the previous owner did some things that were not correct.

I am trying to fix the PCV system. Initially there was no PCV valve and that hose was run back pre turbo. The valve cover vent was run to a catch can with wire stuffed in it for baffles and then just vented under hood. My question is how can I route the PCV line and valve cover vent now to function properly. The MAP sensor is connected where PCV valve should go.

I have another 1g intake that I plan to tap for MAP sensor but didn't know how I could temporarily fix this. Thanks for any advice.

 

[agentorange313]

Post a picture if you can.

The MAP sensor should not be connected to the valve cover in any way. It should be directly connected to the intake manifold to get the best reference for vacuum or boost. I would either use the fuel pressure regulator line and T into it or another nipple on the intake manifold. Do not use the TB. Best would be a designated source only for the MAP and not T into anything,

As far as the PCV system, this link will guide you to a proper set up that best fit your needs. https://www.dsmtuners.com/threads/the-4g63t-pcv-system.366890/

Essentially you want a vacuum source to be drawing air/crank pressure from the valve cover. You can also vent to atmosphere. There are advantages and disadvantages for both set-ups discussed in the link above.

 

[Mello]

Read through this thread, The 4G63T PCV System. It examples our PVC system, & PVC systems & how they work.

 

[obx tsi]

Ok. Let me clarify that the MAP is connected at the intake manifold. That is way I'm wondering how to route PCV valve and valve cover lines. Honestly I have read through all this stuff for years. I am just looking for a simple solution that someone has actually done that works.

 

[Mello]

PVC system is one thing, speed density is a different system. What are you trying to fix PVC or speed density system?

 

[92AWDHX40]

MAP is plugged up to the MAF depending on what your using, PCV valve should be just fine. On the 7 bolt I believe it's wired in at the intake manifold. Any pics of your setup?
https://www.dsmtuners.com/threads/speed-density-question.511388/

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https://www.google.com/search?q=1g+...WKbs0KHQA-AZkQ_AUoAnoECB8QBA&biw=1366&bih=657

 

[obx tsi]

PVC system is one thing, speed density is a different system. What are you trying to fix PVC or speed density system?

Pcv system but trying to explain that the map sensor is where the pcv connects to intake manifold. So with that what would be an acceptable way to route pcv and valve cover vent.

 

[ngerk]

Take the map sensor out and hook the PCV back up correctly between the valve cover and the intake manifold. Run the catch can back to the air intake (pre turbo). Unscrew the brake booster nipple from the back of the manifold and screw THIS in place. Screw the brake booster nipple back into it and use the NPT port for the map sensor. I feel like that should be a simple solution and only requires you to buy that one part.

 

[obx tsi]

Interesting...