Linear Mode
© Copyright 1995 thru 2008 - The Mustang Works™. All Rights Reserved.
MustangWorks.com is designed and hosted by Aero3 Media.
MustangWorks.com is designed and hosted by Aero3 Media.
02-23-2006, 07:38 PM
|
#1 |
|
Registered Member
Join Date: Feb 2002
Location: Jacksonville, FL
Posts: 706
|
right 02 sensor voltage 5.0!
Today (raining) my right 02 started reading richer than hell 5.0vdc (which is max) and then, winding down slowly to about 1.5 vdc at cruise (2500 rpm @ 70 mph)...
the left does the same as always, boucing btwn .2 vdc - .7vdc (I know .46 is ideal but these are factory sensors, the wideband is going in this w-end) any guesses? I'm taking it apart tomorrow...
__________________
1988 GT Convertible 331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta... One week with new motor, two speeding tickets...joy |
|
|
|
02-24-2006, 11:44 AM
|
#2 |
|
Registered Member
Join Date: Oct 2005
Location: Sabana Grande, Puerto Rico
Posts: 33
|
Re: right 02 sensor voltage 5.0!
Either the O2 went fubar (shorted thimble to heater, internal), or you have a short to power or VREF somewhere in the wiring. The O2s don't use 5vdc reference voltage, they produce their own. My 2¢.
__________________
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 
|
|
|
|
 |
|
|