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2G MFI/MPI Relay to prime oil?

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eburg2490skillz

10+ Year Contributor
57
2
Nov 4, 2011
Eldersburg, Maryland
Hey guys, I am just about finished installing my 16g turbo and much more bolt ons on my 1996 Talon TSi AWD.

I have a question about the MFI relay. I didn't run any oil through my lines or the turbo. My friend told me that I could disconnect the fuel relay and turn the car over to get oil through the lines without anything going wrong, is this true? Also will it do the same for my water lines?

How many turns do I have to do to get the oil and/or coolant through my lines safe enough to start my car? Obviously I will plug the MFI relay back in before starting the car. I wouldn't ask on here if people around my place knew what a DSM was or could work on one (smh).

Sorry if some info was wrong, but I know there is a relay (fuse) for the fuel pump. I just need to disconnect it. Which fuse will I have to disconnect in order to put oil through all my lines without having the car starting? What is the relay called?
 
Hey guys, I am just about finished installing my 16g turbo and much more bolt ons on my 1996 Talon TSi AWD.

I have a question about the MFI relay. I didn't run any oil through my lines or the turbo. My friend told me that I could disconnect the fuel relay and turn the car over to get oil through the lines without anything going wrong, is this true? Also will it do the same for my water lines?

How many turns do I have to do to get the oil and/or coolant through my lines safe enough to start my car? Obviously I will plug the MFI relay back in before starting the car. I wouldn't ask on here if people around my place knew what a DSM was or could work on one (smh).

Sorry if some info was wrong, but I know there is a relay (fuse) for the fuel pump. I just need to disconnect it. Which fuse will I have to disconnect in order to put oil through all my lines without having the car starting? What is the relay called?

http://www.dsmtuners.com/forums/newbie-forum/271826-how-prime-turbo.html

People do it all different ways, I would suggest just pulling the 20 amp engine/MPI fuse is the fuse box under the hood. It is easier than disconnecting the MPI relay. Then turn the engine over for 10 seconds a few times and you should be fine. You don't have to do this with your coolant like you asked. Remember to check for leaks!
 
alright thanks man. i spent a few more hours searching and someone mentioned that the crank angle sensor (CAS) is the best way to do it on a 2g. i know it is located somewhere around the fire wall. by unpluging the MPI fuse, will this eliminate all spark and cut fuel? i just dont want to see an engine with 2,500 miles go. also, will it throw and codes that i have to clear or restart the ecu? and thanks i was thinking 10 cranks and wait 10 seconds around 4 to 5 times. after i get enough oil pressure, would it be a good time to look for any leaks, or should i start the car and check?
 
alright thanks man. i spent a few more hours searching and someone mentioned that the crank angle sensor (CAS) is the best way to do it on a 2g. i know it is located somewhere around the fire wall. by unpluging the MPI fuse, will this eliminate all spark and cut fuel? i just dont want to see an engine with 2,500 miles go. also, will it throw and codes that i have to clear or restart the ecu? and thanks i was thinking 10 cranks and wait 10 seconds around 4 to 5 times. after i get enough oil pressure, would it be a good time to look for any leaks, or should i start the car and check?

Like Steve said, pulling the MPI fuse will shut off the ECU so there will be no fuel/ spark. If you do unplug the CAS, it will throw a trouble code which will need cleared either by resetting the ECU or by way of a tuning device like ECMLink or just a simple OBDII scan tool. That is why I suggested just pulling the fuse so there will be no trouble codes. You should start the car to make sure both oil and coolant lines show no leaks. Obviously if you prime the turbo and oil shoots out, you need to fix it. :p
 
thanks a lot guys! i dont want anymore work than what i have to. i am doing this alone to really understand my car so i can have more "under the hood" experience in the auto world. plus a check engine light at 1500 miles on the trans, engine and clutch is just embarrassing haha
 
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