Dpfi to mpfi

Four 4 fuel injector plugs — dpfi to mpfi can use the ones from the harness that was on your OBD1 engine harness. Tiny screwdriver one that comes in an eyeglasses repair kit available at your local Walgreens, etc. DO NOT use cheap crimp-on wire connectors for making any of the connections.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Bolt-on after bolt-on with limited pay-off, something is wrong with the equation. That something would be the DPFI system. Luckily, there is light at the end of the tunnel for DX owners.

Dpfi to mpfi

Thread Tools. Made this to show people how simple and non confusing this can be if done with a good right right up.. I know there are a few out there that are really good but hear is another one hope this helps some people out!!!! Enjoy Note: you must use your stock dpfi engine harness!! View Public Profile. View iTrader Profile. Re: diy dpfi-mpfi swap made easy!!! Send a private message to jlk Find More Posts by jlk EDIT: I forgot to add this to the diagram I drew when you connect the positive wires for the injectors to a15 you do not cut it you splice in to it by stripping back some insolation on the wire.. Send a private message to Elviejoracing.

Try and get all the OEM connectors you can get and solder at all connections and heatshrink. So now to the good news. CRX Tech Pages.

You've stumbled upon a great horsepower swap if you've got a base model Civic or CRX. If you are not mechanically able, I wouldn't suggest doing this swap but it is pretty straight forward once you read over how it is done. You are going from 2 injectors that is almost like simple carbeuration to 4 injectors which is like 4 injectors. Now this swap is great if you want to spend little money and gain some hidden horsepower. The engine wiring harness will make wiring so much easier if you get the complete harness.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. The previous owner put installed D15B7 engine and 5spd transmission from a 5th gen DX but, didn't swap to mpfi, leaving the old std dpfi setup and its pm9 ecu. I have reed many dpfi to mpfi swap forums but should i get the obd0 4th gen Si parts will they even work with this engine? Sort by Oldest first Oldest first Newest first Most reactions. Much more support for obd1 than obd0. Call and ask. Good luck getting a good junk yard dizzy.

Dpfi to mpfi

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For a better experience, please enable JavaScript in your browser before proceeding. Sorry just wanna get it all figured out before I dive into it Now the final step in the wiring is to connect the correct wires to ECU. It had 1 dedicated fuel injector for each cylinder so 4 for a 4 cylinder. The wires in these connectors are in the same location on each side of the connector in order to provide continuity from the engine to the ECU. I am stuck on this one. Next you'll want to mount the injector resistor box on the screw on the driver side shock tower that the harness clip is fastened to. You will find it easier to do most of the changes to the engine wiring harness with the engine out of the car. From the parts store: Various color wire A coolant hose with a degree bend, like the one on the Si. Heres how to do it step by step JavaScript is disabled. Find More Posts by grandtheftauto. Just tape this connector back to the engine harness and leave it. Trending Topics. The CPS detects when cylinder 1 is at top dead center to help with proper fuel injector timing.

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Incorporate them into the harness, or just tape them to the harness, all the way up to where the distributor connector comes out of the harness. Find More Posts by k20rex. Once you are done pin this into C2's now empty spot. The time now is AM. Connect the blue wire from injector 3 to the red wire that went to the primary injector. Find More Posts by jdmboyef9. I am stuck on this one. Don't connect any wires yet, first screw on the manifold tightly, tightening the bolts just like a header, tightening the inside bolts first, and alternating moving out. You can do this in comfort outside of the car. Same procedure, just add the extra wires for the 4 wire o2 and the vtec pressure, and solenoid. Now solder and heatshrink on a length of wire long enough to reach into the engine bay all the way to about 1ft after the fire wall. This should only happen at three 3 locations: 1. Explore Our Forums.