Why? are you hacking, it?
the FSM book covers this.
and what makes you think there is a maf.
there isnt
the engine is speed density EFI, and uses a MAP .(BARO SENSOR)
The free book is here, read it. the TJ
page 8w-30-8 see it?
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service
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: i need to know where my MAF/IAT sensor wires are
it's the sensor on the intake air duct come out of your air filter. the iat sensor is integrated with the maf sensor
SOURCE: 1998 jeep wrangler 4.0...trying to
The IAT on your Jeep should be located on the intake manifold, directly behind the throttle body. It will be a screw in sensor with a two wire plug.
SOURCE: i have 5 wires going
Well im not sure why you are asking this question . They are two differant systems the mas air flow and the idle air intake bolth run off a 5 volt referance voltage but are not related so to speak to each other as far as the same ref voltage the same ground as every thing else .The IAT MAP TP ECT and fuel pressure sensor are one side and the MAF EGR and the EVAP are on the other side but all on a common ground . Ex plain what you are trying to do and why you are trying to do it and mabey i can make your life a little easyer and what caused this problem
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