A very big mistake the PCM values will be altered and it will keep trying to correct it till it burns out the PCM all the systems run by voltage values and you will be stressing out the PCM till faliure just because you can buy it doesn't mean you can do it they will sell you anything that you are willing to buy and doomsday is evident here stop now or electrical specialist later a$100.an hour oh boy is it worth it plus multiple pcms I don't think so
Better leave it alone and take to shop to do. You may incurr more cost if you damage ECU.
SOURCE: Ford Focus ST 2006 wiring diagrams & workshop info
can you check with parts department at ford and see if thy can
otherwisw check with autozone
SOURCE: 2008 ranger 3.0
the IAT is not controlled, it simply provides information to the PCM about the temperature of the air entering the engine, this is required to inject the correct amount of fuel, air density is affected by air temperature.
Save your money, the chip is a ohm resistor at Radio Shack for under $2.00. It splices in to you IAT wire harness located at the intake tube between the air filter housing and throttle body.
Problem with this system is, that you can not adjust anything and have to run a constant 91 octane just to make sure you do not have a Detonation. The ECM will catch the Detonation from the knock sensor and compensate for it by retarding the timing which in turn lose of HP till next start up.
If you like and don't mind the check engine light on once and awhile, you can do the same by just disconnecting the IAT wire harness which give the ECM a 0 resistance thinking it's -20 out side and turn the timing up and lengths the injector pules.
When i was running a Nitro in the Toy before i sold it, i had installed a 10K ohm Potentiometer which you can buy at radio shack for under $5.00 i believe, I just spliced it in to the IAC wire harness so if i wanted to play with the Nitro I'ld turn the resistor up making the engine think it's 185 degrees F and would ****** the timing so i would not hurt the engine. But if i wanted to get more timing i would just turn the knob to drop the resistance to get more time since the engine thinks it's -20 out side.
Hope this helps. Keep me posted if you need more info. Best thing is to do a dyno tune and you can change everything right down to the Shift points.
SOURCE: 2004 F250 5.4L 6 pin
Hi,
Most of the models have the similar wiring. Check the one i have for 01 F250 and let me know :-
http://www.allfordmustangs.com/forums/attachments/v6-talk/24292d1172198458-need-wiring-diagram-maf-iat-6-pin-connector-2001maf.gif
Let me know,if needed further assistance.
Hope i helped you.
Thanks for using ' Fixya ' and have a nice day!!
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