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Old 04-04-2003, 08:44 PM
91civhatch 91civhatch is offline
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Help with intake swap

Hi guys im converting my dx 1.5 to mpfi and i was wondering if it would be a good idea to get the si engine harness???? if i did would everything bolt right up no stripping of wires???? please help someone was telling me i need to do so much shit like cam and $hit..... any help would be really appreciated thanks.....
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Old 04-04-2003, 08:57 PM
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you dont need the cam to do the mpfi swap, but yes the wiring harness will help alot, make sure you get the injector resistor box too, its on the shock tower.
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Old 04-04-2003, 09:04 PM
91civhatch 91civhatch is offline
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resistor box is on the way also but someone was telling me the sites on the boards for the swap are wrong
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Old 04-04-2003, 09:07 PM
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try www.4thgenerationcivic.com
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Old 04-04-2003, 10:21 PM
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yeah i just did that swap, dpfi to mpfi, well i am not done yet just gotta do the ecu stuff. took me about 4 hours
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Old 04-04-2003, 11:17 PM
91civhatch 91civhatch is offline
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where did u get he info from civkiller?
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Old 04-05-2003, 06:24 AM
civickiller civickiller is offline
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i got it from the june 02 issue from scc, which is exactly with www.4thgenerationcivic.com has except it doesnt say that c2 goes to b12.

but when doing the swap, ive found that there were a few more mods needed than what said, well there were for me cause i didnt wanna hack up my stock harness. so if u dont wanna hack up your stock harness, you gotta
1. legthen the tps wires
2. legthen teh oil sensor back there, it has a cover on it, but theres 2 wires underneath it
3. then the exhaust mani o2 sensor is in the back of the engine, so u gotta run a wire from teh connector to the back of the engine.
4. then the green and yellow wire on the tranny connectors need to be lengtheh
5. the dx distributor plug doesnt match the si plug, so u either gotta get an si plug or just put a connector and just match up the wires without a plug.

thats all i can think of for now
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Old 04-05-2003, 12:14 PM
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Quote:
5. the dx distributor plug doesnt match the si plug, so u either gotta get an si plug or just put a connector and just match up the wires without a plug.
You have to get a different distributor. the DX distributor desnt have a cylinder position censor OR a crank angle sensor if im not mistaken, since the DX injection just squirts gas into the common plenum and whatever valve is open gets gas whereas MPFI relies on crank position and cylinder positoin to determine which injector to fire and when...
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Old 04-05-2003, 04:27 PM
civickiller civickiller is offline
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yeah i know, im saying the the dx plug doesnt have the room for the 2 extra wires u gotta add, and the dx plug doesnt match up with the si dist. plug. so that why i was saying u either gotta get a si dist. plug or just match the wires up and put connectors on them.

i never mentioned the 2 extra wires cause thats already in the directions for the mpfi swap.
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