Re: Check engine light update... - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Re: Check engine light update...
Posted by Dean [Email] (more from Dean) on Tue, 7 Jun 2005 12:22:40
In Reply to: Check engine light update..., Clay McNeely [Profile/Gallery]
, Tue, 7 Jun 2005 12:05:36
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Check plugs, missfires can create this code, plugs may be fouled and tracking.
Check VAC line to FPR, if busted/off, will be rich on part throttle and lean on boost.
Check VAC line to MAP, if leaking can also throw off mixture.
The above problems can cause the amount of adjustment needed to maintain O2 sensor norms and trigger this CEL.
Also check that the O2 sensor heater circuits are ok. Wires damaged? Connectors ok. Check fuse 38 for O2 sensor heaters.
Check for VAC leak via evap control system solenoid valve hose.
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