Re: pulled codes, please help
Mr. code 56....., two MAF having the same problem.....reads as if the tube has something to with it, MAF going way past its signal voltage boundaries = airflow restriction under operation (WOT in your case, or MAF > 4.5vdc)......umh....what type of ECM are you using BTW?....if driveability is ± OK, leave MAF connected. LUK
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ACRONYMS:
LUK=Let Us Know, GL=Good Luck, LMK=Let Me Know, JIC=Just In Case, BTSTDTRT=Been There Seen That Done That Repaired That and the classic... DILLIGAS=Do I Look Like I Give A S***
1986 Mustang GT w/T-Tops 
NOW: 5.0L Stock SB, X303 Cam, 700 cfm DP Holley, 289 '66 Heads, 1.7 RR, Richmond Gear 4+1 Tranny, Centerforce DF, 2.73 Gears
WIP: 3.90 Gears, LS Overhaul, Adj. LCA's & UCA's (Granatelli), T-Top weather striping and rear braces bodywork 
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