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Automotive Repair Car Troubleshooting Topics   Car Troubleshooting   Engine Troubleshooting   Engine Fault Codes   Electrical and Wiring   Transmission Problems Car Repair Topics   Car Making Noises   Car Stereo Repair   Heating or AC Issues   Motorcycles and ATVs   Tricks of the Trade   Truck Repair Advice Site Options:      Login   Sign up here! Latest Forum Post   2006 Toyoto Camry XLE Driver Side Electric Window Trouble Hello, Looking for a little brain help ...   Tierod end change caused some kind of leak Hello so I just took my car to the nearb...   2011 Dodge Nitro OBD scanner seems to drain battery in 10-20 minutes When I bought this car in summer 2023, a... Grounding Cable, 2017 Jeep Renegade Trailhawk The Cable that connects my negative batt... Rough Idle (Found new thing) Hi everyone. First of all sorry for bad ...     equipment hey yall. im a first year engineering st...   HELP I have a 1956 1/2 ton panel truck, 69 35...   Howdy     Just wanted to s...   ABS/Tractiob/Brake Lights on But No DTCs Hello all, Recently while driving m...   Chevy strut replacement I'm trying to get a sensor of some kind ...

Search Auto Parts Search 02 sensor help needed Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Engine Troubleshooting Johndaily693 Novice Jun 14, 2014, 4:33 AM Post #1 of 3 (1438 views) 02 sensor help needed Sign In My post cat 02 sensor reading from the obd stays constant at 0.85v with small movements only is this normal? Is the figure of 0.85v normal or too high? What is the normal range? Also the feul trim shrtft12 for this sensor is 99.2% , is this figure normal or too high also this figure does not chnage much either ? What does the high voltage and high shrtft12 mean exactly and is there is a problem? My vehicle is. Lpg vehicle , rover 25 , 1.6 engine , 2003 , 52000 miles on clock. Even if you do not know much about the model or car , do the figures above look right for any vehicle? (This post was edited by Johndaily693 on Jun 14, 2014, 6:17 AM) GC User Jun 14, 2014, 7:17 AM Post #2 of 3 (1421 views) Re: 02 sensor help needed Sign In Often generic code readers substitute values for fuel trims. If the trim is excessive, it will set a rich or lean code. If the 02s is acting up, it will usually set a code as well. Dont have this vehicle here in US. Are there trouble codes stored, or are you just playing around with a code reader? ____________________________________________________ Willing to help, willing to learn... Rob nickwarner Veteran / Moderator Jun 14, 2014, 9:42 AM Post #3 of 3 (1408 views) Re: 02 sensor help needed Sign In Also your post cat 02 doesn't affect fuel trims. It is merely a catalyst monitor. If the cat is working right, it should read richer than the pre-cat as the catalyst is using up oxygen during its chemical reaction.   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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