Tuesday, December 27, 2011

Left bank sensor running lean?

Ok typically when there is a vacuum leak both banks will run lean or its just setting a code for the one side only.This type of code needs alot of attention to detail to diagnose properly by mnonitoring sensor inputs and such. If its really only running lean on one bank it could be a suspect lazy oxygen sensor not switching fast enough if it has alot of miles on the engine.Both sides lean could be due to a mass air flow sensor, vacuum leak or weak fuel pump. Most causes of a vacuum leak are a bad pcv valve or leak in its hose. A diagnostic check for codes with a scan tool would need to be done running both a Key On Engine Off test and Key On Engine running test be done to chek for hard faults and montioring the oxygen sensor & short term fuel trims and long term fuel trims to know exactly whats the main problem in this type of problem. if you dont have acces to a scan tool thtat can look at live data then you will need to bring it to a shop that does so they can fix it properly.

This will help.


--------
More solved error code problems:-------

Diagnostic Code

Evaporative Emissions System codes details?

http://schematicsdiagram.blogspot.com/2011/11/evaporative-emissions-system-codes.html

 

Engine Misfire codes on Chevrolet Malibu?


ABS trouble codes for all 1994-00 Acura models?

Diagnostic code P0010?

http://schematicsdiagram.blogspot.com/2011/12/diagnostic-code-p0010.html

Diagnostic Code P1396?


Code P0452?


OBD code P0172 on Buick Park Avenue?


DTC Code P0321 on Buick Park Avenue?


Error Code P0471 on 2007 Dodge Ram 3500?


P0304 Error code on Dodge Neon?


OBDII scan is receiving NO BUS CODE?


How to Clear OBD error Codes on Acura Car Models?


Diagnosis and Testing Car Components?

Diagnostic Trouble Codes list for Acura Car Models?

Part 1.

Diagnostic Trouble Codes list for Acura Car Models?

Part 2.

Diagnostic Code 43 and 71 on 1991 Toyota Pickup?


Code P0132 On Acura TL?

P0031 code on Dodge Dakota?

How to get diagnostic Code without OBD Scanner on Pre 1995 Toyota Pickup?

OBD-II Trouble Code P0300?

http://schematicsdiagram.blogspot.com/2011/12/obd-ii-trouble-code-p0300.html

No comments:

Post a Comment