Question about 1995 Ford Taurus
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Posted on Jan 02, 2017
P0141 is for an open or short in the heater circuit of bank 1(passenger side) rear O2 sensor(the one after the catayltic converter). This code will set when the computer runs the heated oxygen sensor monitor which is basically a program kinda like an anitvirus scan on your home PC.
During testing, the HO2S heaters are checked for opens/shorts and excessive current draw. The code will set when current draw exceeds a maximum calibrated limit(3amps) or falls below a minimum calibrated limit(0.220 amps for NKT sensor and 0.400 amps for bosch sensor) and/or an open or short is detected.
Here are the possible causes for this:
·Short to VPWR in harness or HO2S
·Water in harness connector
·Open VPWR or GND circuit
·Low battery voltage
·Poor electrical connections from PCM to HO2S sensor
Now the reason I ask what the codes were is that may help in determining what is wrong. If the other codes you had were also O2 heater cicuit codes example P0135, P0155, P0161 then you may need to be looking at something other than the O2's themself and maybe more toward a blown fuse no. 24 (15amp) in the under hood fuse box,wiring harness problem on the voltage side since all four share this one or a bad PCM.
Posted on Mar 19, 2009
The advice that the garage gave you seems right. If any bushes were worn they would show up on the MOT Test. Try taking it to another garage to check out the Cat for your peace of mind.
Posted on Nov 28, 2008
SOURCE: FAILED EMISSIONS
possible but could be head gasket or valves , or worn rings and is by passing the pistons going straight out the end ...or maby settings are wrong ? try carb cleaner and inspect visually air-filter etc.
Posted on Aug 26, 2009
You might want to try "google images" just type in your vehicle and what your looking for. Here's an example (link) of what to look for.
Posted on Oct 25, 2009
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