Whats wrong my MAF!!

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GoldZenkiS14
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Joined: Fri Jan 02, 2004 8:22 am
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Ok i bought my car with no maf and the maf harness cut, my car is a 5 spd. The car starts up fine and idles ok but it has no MAF or intake so of course i got to get that on there.. so i buy a maf and harness of of an auto s14 i get the harness on today, i pluggged the maf in and the car doesnt idle and the check engine light is still on (i had the battery off for about an 1 hour so im pretty sure the ECU was reset) :( So i unplug the MAF and the car turns on , the cel is on but the car idles, turn the car off, put maf back on, and no idle?? So what can be worng with the maf? It came of an auto .. could it be that the auto have a different fuel pattern or something and the inj flow less on them? There is no intake on still i just have one small tube on the tb and then there i put the MAF with no filter or any of those emissions hoses plugged in. Could it be it wont idle because of that?? I really need to know asap i am tottally car-less and i dont think i can spend anymore time w/o a car. If anyone can help me please do so and thanks you very much!! Carlos :(


alex7542
Posts: 120
Joined: Thu Nov 20, 2003 11:00 am
Car: Racing and high horsepower

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Hey Goldzenkii dont know how your car is idiling whith the maf sensor disconected. USually the car would turn on and imeddiatly shut off. Atleast thats how it is with both of my cars a 92 240 and supra.

And the maf of the s14 automatic i dont think it would different the automatic and stick. as usually the computer difference with auto and stick is the red line. I might be wrong but to my knowledge thats how it is.and check your wireing of the sensor make sure you have all the correct wires. if not check the sensor itself open it up and check that all the metal contacts are at the correct points and making contact. That happen to my supras maf two metal pieces inside of the sensor moved and i was car less for lik 3 weeks because i didnt think to open it up.

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ftrs13
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Joined: Sat Jul 05, 2003 7:11 pm
Car: KATs

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well it depends what year it is, doesnt the computer switch sometime in the s14 model from OBDI to OBDII???

maybe you got one from a different computer than the car that you got

dbhittin
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Joined: Wed Nov 05, 2003 7:16 am

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i have an extra one from an 89 5sp

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GoldZenkiS14
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hey guys, my intake came in. I put it on and connected everything up and the car is idleing now and so far ive reved it to 5500 and its ok, stayed idleing after, so hopefulyl problem is resolved. About OBDI And OBD II my light is still on so i did ask the persion i bought it from about that hopefully his is an obdII like im pretty sure my 96 is. DBhittin maf has to be from an s14 .. thnaks for the helpCarlos

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rudeboy
Posts: 139
Joined: Tue Sep 10, 2002 2:21 pm
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a quitck note....when you go to reset the ecu, unplug the battery and hit the brakes a few times. that will release any excess enery in the system. the car will attemp to light the brake lights....thus expelling any left-overs....

sorry. had to add that


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