Dpfi to mpfi

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Drivetrain DIYs Anything that involves the performance of the vehicle. Thread Tools. Other obvious parts that need replacing i. The first one is the crank angle sensor wiring which is the easy part. The second one is the fuel injector wiring which is slightly more complicated.

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.

Location of ECU is under the passenger side footwell.

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.

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Dpfi to mpfi

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. The stock dpfi connector has 14 pins and the crx si connector has 8 pins so im just wondering what i should do. Sort by Oldest first Oldest first Newest first Most reactions. I have performed this swap, i'll try to explain everything the best i can. You will have some unused clips as well as the dpfi manifold had extra sensors. The tps outer two wires need to be swapped because the tps on the mpfi throttle body moves a different direction than the dpfi tps.

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Received 3 Likes on 3 Posts. Advanced Search. Send a private message to richboi. Cut the eight 8 Fuel Injector wires that go to the chassis connector. Connect the throttle cable. But first here is a diagram of how the ECU pinouts are numbered, the side you are looking at would be the female side the holes with the wires coming out of the back of it. Because if you are like me you were using black wire which all looks the same so you need to make sure you know which is which. Solder all splices and use heat shrink tubing to help support and protect the splice. You can either cut it off or tuck it away somewhere. This should only happen at three 3 locations: 1. This is because the DX TPS sensor works in the reverse of the MPFI one, so if you didn't do that your car would think it was at redline when it was suppose to be at idle. Make sure the connection is clean and secure. Find More Posts by julioboostamante.

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It had 1 dedicated fuel injector for each cylinder so 4 for a 4 cylinder. I also want to get a chipped ecu for tuning. You can remove the bracket that is already there because the injector resistor box has a bracket on it that you can put it on. 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. Location of ECU is under the passenger side footwell. Leave the injector wiring from main part of the harness intact but take all the looming and tape off so you can get at the wiring and you'll know what I mean. In the picture above is the injector resistor box. You also need to tap into the injector power and intercept it with the resistor box, then run each of the four wires coming out of the resistor box to the other injector wires. The following errors occurred with your submission. Enjoy Note: you must use your stock dpfi engine harness!! But you took your time, and did it right, so you shouldn't have to worry about this. The box transfers the high impedance current the DX has and turns it into the low impedance needed for OBD-0 injectors. Its so fuzzy I can't read it! I originally tried crimping some wire into a pin but you can't solder it because the space in the plug is too small. The last thing you really need to do is wire the Cylinder position sensor and its pretty easy.