Question about 1998 Mercury Sable
1998 Mercury Sable. Motor Runs fine. but it has check engine light on. i have three codes. P0171 and P0136 Bank 1 Censor 2. i have P0174 system too lean bank 2.
Codes that tell you your engine is running lean can be caused by a number of things. First thing to do (and cheapest) is to get some fuel injector cleaner and run it for awhile. Dirty injectors can cause these codes. I recommend lucas brand myself but there are several different cleaners to choose from. The second thing is checking your vacuum lines. If there is a leak it can cause the engine to **** in too much air and cause the codes. Anything beyond that gets into alot of mechanical work and should be done by a certified technician
Posted on Jul 16, 2009
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Posted on Jan 02, 2017
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