can an o2 sensor be bad and not have SES light?
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From: parishville NY upstate
Car: 86 IROC-Z
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.42s/posi/disc
can an o2 sensor be bad and not have SES light?
hey guys was wondering if it is possible to have a bad o2 sensor and not have the ses light be on.
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From: Dallas, TX area
Car: 91 Formula WS6 (Black, T-Tops)
Engine: 383 MiniRam (529 HP, 519 TQ - DD2K)
Transmission: Built '97 T56, Pro 5.0, CF-DF
Axle/Gears: 4.11 posi Ford 9"
Yep, it can. In fact, there is no diagnostic test for the ECM to determine if the O2 is good or not.
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