Noob needs help with MAF.

d_Ryan · January 30th, 2011, 11:16 PM

Ok, so this is my first post on modded mustangs, so bare with any of my idiocy. I've tried to search but im kind of coming up baffled. I have an 86' GT which used to have a MAF conversion done. But as of right now there is no harness. I've been told that it is hurting performance. As of right now, is my car just using Speed density? What do i need to get the maf working. Do i need a new computer??? Sorry, for making a whole post but i seem to be coming up short. Here is a picture of the MAF and the "computer?". BTW, its on an AEM intake and im running 24lb. injectors.

ryanw · January 30th, 2011, 11:55 PM

Originally Posted by d_Ryan

I have an 86' GT which used to have a MAF conversion done. But as of right now there is no harness. I've been told that it is hurting performance. As of right now, is my car just using Speed density? . BTW, its on an AEM intake and im running 24lb. injectors.

you said used to have the mass air harness ? why was it disconected and removed ?

AdderMk2 · January 31st, 2011, 03:20 AM

the picture you posted of the computer does not show the catch code, so we cannot tell if it is a SD or MAF ECM.

A MAF car will not run in a "SD mode" by simply unplugging the maf. So if your car has a MAF ECM in it, and runs like sit... its because the maf needs to be... i say again... NEEDS to be plugged in.

d_Ryan · January 31st, 2011, 10:54 AM

Before i bought it (just recently), it had a maf conversion, but the seller wanted to take it off. He, i guess took off the harness, but forgot the maf? I definatley wouldnt say it runs like shit. It still runs 14s in the 1/4, and runs perfectly smooth, but it does have a little trouble idling consistently. So how do i know if the ECM is SD of MAF? Like, which catch codes should i be looking for??

AdderMk2 · January 31st, 2011, 04:23 PM

the white sticker on the end of the computer will tell us alot. we need to know what code is on it. Should be a letter number letter like X#X

d_Ryan · January 31st, 2011, 07:48 PM

Originally Posted by AdderMk2

the white sticker on the end of the computer will tell us alot. we need to know what code is on it. Should be a letter number letter like X#X

ryanw · January 31st, 2011, 08:07 PM

I think thats your stock SD ecm. not sure though

AdderMk2 · January 31st, 2011, 10:33 PM

yup yup E6SF is a 1986 year produced piece. stock.

the 24# injectors are currently a root cause of your car running shitty

ryanw · January 31st, 2011, 11:12 PM

So id put the 19lb injectors on, or finish the mass air conversion. And with the mass air make sure your maf is calibrated to the 24lb

January 30th, 2011, 11:16 PM	#1
d_Ryan Newbie Join Date: Oct 2010 Posts: 3 iTrader: 0 reviews	Noob needs help with MAF. Ok, so this is my first post on modded mustangs, so bare with any of my idiocy. I've tried to search but im kind of coming up baffled. I have an 86' GT which used to have a MAF conversion done. But as of right now there is no harness. I've been told that it is hurting performance. As of right now, is my car just using Speed density? What do i need to get the maf working. Do i need a new computer??? Sorry, for making a whole post but i seem to be coming up short. Here is a picture of the MAF and the "computer?". BTW, its on an AEM intake and im running 24lb. injectors.

January 31st, 2011, 03:20 AM	#3
AdderMk2 Banned Join Date: Aug 2007 Location: al-Ahhmadi, Kuwait Posts: 991 iTrader: 0 reviews	the picture you posted of the computer does not show the catch code, so we cannot tell if it is a SD or MAF ECM. A MAF car will not run in a "SD mode" by simply unplugging the maf. So if your car has a MAF ECM in it, and runs like sit... its because the maf needs to be... i say again... NEEDS to be plugged in. __________________ [URL="http://providence.craigslist.org/cto/2148862880.html"]1994 Cobra For Sale[/URL] [SIGPIC][/SIGPIC] [QUOTE=Timm10221]Its only a 10 inch Tach that sits right in the center of the dash with LED lights and a Spinner bezel that has dimonds and gold plating.. And when you hit 4500 plus is sounds off (AAHHH SHITT) :cool:[/QUOTE]

January 31st, 2011, 10:54 AM	#4
d_Ryan Newbie Join Date: Oct 2010 Posts: 3 iTrader: 0 reviews	Before i bought it (just recently), it had a maf conversion, but the seller wanted to take it off. He, i guess took off the harness, but forgot the maf? I definatley wouldnt say it runs like shit. It still runs 14s in the 1/4, and runs perfectly smooth, but it does have a little trouble idling consistently. So how do i know if the ECM is SD of MAF? Like, which catch codes should i be looking for?? __________________ 1986 Mustang GT Hatch: Hurst STS 5-Speed. 3.73 gears. MSD Coil and Cap. JBA headers.Full suspension, Global West subframe connectors.Aluminum Radiator, Driveshaft, and Flywheel. Fidanza Clutch.70mm TB. AEM intake.

January 31st, 2011, 04:23 PM	#5
AdderMk2 Banned Join Date: Aug 2007 Location: al-Ahhmadi, Kuwait Posts: 991 iTrader: 0 reviews	the white sticker on the end of the computer will tell us alot. we need to know what code is on it. Should be a letter number letter like X#X __________________ [URL="http://providence.craigslist.org/cto/2148862880.html"]1994 Cobra For Sale[/URL] [SIGPIC][/SIGPIC] [QUOTE=Timm10221]Its only a 10 inch Tach that sits right in the center of the dash with LED lights and a Spinner bezel that has dimonds and gold plating.. And when you hit 4500 plus is sounds off (AAHHH SHITT) :cool:[/QUOTE]

January 31st, 2011, 08:07 PM	#7
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	I think thats your stock SD ecm. not sure though __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

January 31st, 2011, 10:33 PM	#8
AdderMk2 Banned Join Date: Aug 2007 Location: al-Ahhmadi, Kuwait Posts: 991 iTrader: 0 reviews	yup yup E6SF is a 1986 year produced piece. stock. the 24# injectors are currently a root cause of your car running shitty __________________ [URL="http://providence.craigslist.org/cto/2148862880.html"]1994 Cobra For Sale[/URL] [SIGPIC][/SIGPIC] [QUOTE=Timm10221]Its only a 10 inch Tach that sits right in the center of the dash with LED lights and a Spinner bezel that has dimonds and gold plating.. And when you hit 4500 plus is sounds off (AAHHH SHITT) :cool:[/QUOTE]

January 31st, 2011, 11:12 PM	#9
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	So id put the 19lb injectors on, or finish the mass air conversion. And with the mass air make sure your maf is calibrated to the 24lb __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

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