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map sensor what is it for

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Old 04-07-08, 09:44 PM
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map sensor what is it for

so yea i put a turbo 2 engine in my car and the wiring harness for it wont hook up to the map sensor but what does the map sensor do
Old 04-07-08, 09:51 PM
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it tells the ecu what the absolute manifold pressure is.

You need it.
Old 04-07-08, 10:03 PM
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does it have anything to do with spark i tryed everyting and not getting any spark or fuel its dry i have tryed everything differnt ecu wiring harness nothing works
Old 04-07-08, 10:33 PM
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check your fuses and circuit opening relay.
Old 04-07-08, 10:41 PM
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what do u mean your harness wont hook up to the map sensor . u got a f,ed up harness or u just arnt applying yourself
Old 04-07-08, 10:45 PM
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will the 318 map sensor fit on a jspec wiring harness because i still have the 326 on there and the plug is way differnt could the crank angel sensor have anything to do with spark or no fuel thru the injectors or is that map sensor
Old 04-07-08, 10:47 PM
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Is the ECU S5 or S4? Is the car S5 or S4?
Old 04-07-08, 10:50 PM
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s4 harness and s4 ecu i have two the n333 and the n340 i dont know any more jspec s4
Old 04-07-08, 10:56 PM
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Ok, if you haven't read the faq already, you need the T2 ECU, VAM,MAP sensor, and injectors. There is a plug on the harness itself that goes to the body harness, there is a body harness plug that must go to the ecu, you can use the na harness, but you need to change a couple of wires.

check your engine bay fuses, and your fuel pump fuse. Check for 12V at the injectors and for 12V at the ecu, when the ignition switch is on.

Let us know what happens and then we'll go from there.
Old 04-07-08, 11:00 PM
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yea there are 3 plugs for the inside besides the one that plugs into the ecu to bigger ones and the one to the map sensor everything else is conected
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