Mass Air FLow sensors

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schug13
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Joined: Thu May 31, 2007 3:45 pm

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I know that different MAFs can be used. The question I have is how are they connected to the harness. ex: hooking a Z32 MAF to KA.


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bone_stock_240
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Car: 1995 Infiniti Q45

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I believe that you cut the connector off the stock harness, and splice in the pigtail from the Z32 maf. Don't take my word for it though. Post this question in the KA-T forum, and you will probably get better results, or you can post it in the newb question thread. People are very helpful there, and most of the people with bad attitudes stay out of that thread.

zerothread?id=249603

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480sx
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Hes right, you need either an aftermarket pigtail for the z32 Maf,(ebay, or elsewhere)or you need the actual pigtail from a 300zx. Search for z32 maf and you should find alot more information on the subject. Im sure someone here has a thread on installing upgraded mafs.

The real question that i have for you however is why do you want to upgrade your Maf? Are you turbo, or putting out alot of Hp? If your not, the stock maf is fine. You dont get any real HP gains by installing an upgraded maf. They are only needed for handling additional Hp. Your stock MAF is good till like 250 hp i think, maybe a little more. Hope this helps

schug13
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Im NA right now. but soon to be KA T.And from what I have heard many MAFs will work, anything from; eagle talon, mustang cobra, and other nissans obviously. but basically anything that is setup for higher input motors. thanks

180fan
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keep in mind that when you change over mafs, it's not a plug and play kinda deal. it'll involve some engine tuning for that new mafs signal or something to convert that air flow signal.

schug13
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so if I were thinking about getting the ecu tuned by enthalpy, then I would just have to splice the sensor and tell them which I am using and it could be tuned specifically.

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burgy240
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Correct.
schug13 wrote:so if I were thinking about getting the ecu tuned by enthalpy, then I would just have to splice the sensor and tell them which I am using and it could be tuned specifically.
depending on your HP goals your best bets are the n60 and the n62 Nissan Mafs. the n60 is a maxima etc MAf and the n62 is the Z maf. Definately don't add hp but neede if you ARE up grading HP numbers past 250. A ROM to is essential as well.

schug13
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ROM? educate me please.

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fijianrocket
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Car: 95 nissan 240sx se, 74 jeep CJ5, 76 CJ5

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n62 also comes in the infinity J30 as well. Rom tuning is a way to tune your ECU to compensate for the modifications that have been made. You either use a daughterboard to add the new tune settings or use a piggyback system to intercept and interpret the signals from the sensor modules and relay them to the ECU. The ecu has preprogrammed tunes that cannot be altered unless you have a daughterboard thus its rom tuning. Basically they are both ways to change the stock settings.(by the way ROM if im not mistaken is read only memory pertaining to computer systems- these are preprogrammed to initiate or "indulge"in functions and cannot be altered ....well in theory))Daughter boards actually give you more in terms of tuning ability - access to speed limiters ,timing, rpm limiters, fuel input- via injectors(especially since most upgrades require more fuel e.g. turbos) Mass air flow sensor (inyour case the n60 or n62) If you are lookin for serious power the piggy back limits what you can achieve. One other thing with the db is that most of them come with a USB port to hook up to your laptop. This obviously takes some skill but can be learned.


Modified by fijianrocket at 8:49 AM 6/6/2007

schug13
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understood. What companies do such a thing. Is this what enthalpy does for about five hundred?

Kyle Basbous
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Car: 240sx with sr20det red top car is set-up for drifting and time attack

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hey i have a sr20det redtop and i want to upgrade my mafs. I have a n60 purple tag mafs and i wired it up but the car wouldnt run right at all it idled at 400-500 rpm with smoke coming out the exhaust so i thought the wiring was not right but it was i checked it three times so then i got another n60 mafs and the same thing happened so i threw my original mafs for the sr20 and now i have problems boosting. it will barely boost past 5 psi but if i am in a high rpm range it will boost normally

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fijianrocket
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sticking a new maf on thee isnt just a plug and play issue. The ecu could not read the sinals that the upgraded maf was sending. Black smoke and sputtering running too rich (especially if you could smell gasoline.)Lack of air in the engine. do you have a piggy back system that you can program in the upgraded maf.

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fijianrocket
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bikirom is pretty good so is enthalpy.

schug13
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kool thanx man

Kyle Basbous
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Car: 240sx with sr20det red top car is set-up for drifting and time attack

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No, i was going to get the ecu reflashed. The tuner i talked to told me that going this way (reflashing) would be better and i didnt have to spend any money so i was cool with it. I was supposed to put the mafs in and then take the car to the tuner but this lil problem came about. Its weird cause the car used to pick up and go when i got on the gas but now there is a lot of turbo lag and it seems to hesitate when i get on the gas. Would it make a difference if i just got a n62 mafs.

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burgy240
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Kyle Basbous wrote:No, i was going to get the ecu reflashed. The tuner i talked to told me that going this way (reflashing) would be better and i didnt have to spend any money so i was cool with it. I was supposed to put the mafs in and then take the car to the tuner but this lil problem came about. Its weird cause the car used to pick up and go when i got on the gas but now there is a lot of turbo lag and it seems to hesitate when i get on the gas. Would it make a difference if i just got a n62 mafs.
No it won't you'll still need a ROM tune to make it work right. take the car to your ECU tuner and then put the MAF in after you are there.

Kyle Basbous
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Joined: Thu May 03, 2007 2:16 pm
Car: 240sx with sr20det red top car is set-up for drifting and time attack

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alright dude thanks for all the help


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