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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 03-07-2010, 08:47 PM
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Please Help

i need some explantion of codes



P1188
Fuel Control (Bank 1 Sensor 1)

andP0170 Fuel Trim Malfunction (Bank 1)

need help on understanding so can be fixed
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#2 (permalink) Old 03-07-2010, 09:44 PM
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Quote:
Originally Posted by bimmerteen View Post
i need some explantion of codes



P1188
Fuel Control (Bank 1 Sensor 1)

andP0170 Fuel Trim Malfunction (Bank 1)

need help on understanding so can be fixed
Pre- Cat o2 Sensors.......Everything I've searched came up pre-cat o2 sensors,

Before you replace them, make sure your car is well tuned, plugs, air & fuel filters are all up to date........check the MAF Sensor Boot for cracks & vacuum leaks, also clean the MAF Sensor......with a Mass Air Sensor cleaner sold @ most auto parts stores......



OBD Codes - bimmerfest - BMW Forums



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#3 (permalink) Old 03-12-2010, 09:01 PM
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so my car has 2 o2 sensors?
anywya to test them?
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#4 (permalink) Old 03-13-2010, 02:50 AM
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Originally Posted by bimmerteen View Post
so my car has 2 o2 sensors?
anywya to test them?
when one fails the other one follows shortly this happen to me on my vw jetta i changed one and a month mater the othe one went out on me if its bank one sensor one then its the one that comes from the engine to the muffler/cat
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#5 (permalink) Old 03-13-2010, 09:52 AM
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okay thanks
so jus replace both at once
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