Question about Cars & Trucks
I've replaced both o2 sensors and the map sensor now engine code p0141 came on. not sure what to do know
This code is for the heater circuit of the O2 sensor bank #1 sensor #2. Since you've already replaced the sensor and it didn't take care of your problem you will have to look at your fuses and replace any that are blown. The fuse that supplies power to the O2 sensor heater or may be blown. Also check your wiring and make sure that the harness isn't broken or or the insulation melted.
Posted on Jan 19, 2013
Depending on the make model and year, code 141 is for a problem with the heater circuit for the O2 sensor bank one sensor two. Sensor two is after the catalytic converter.
The problem could be the sensor or the source of power for the heater circuit.
Posted on Jan 19, 2013
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
1- check there is spark come from spark wires
2- check the fire timing by looking for every wire in the right place
3- check there is injector signl
4- check for any vacuom leak
5- try to clean the MAF by brake and parts cleaner
6- try to reset all the code and see what will come after that
Posted on Mar 14, 2009
The OBD II code for P0400 is Exhaust Gas Recirculation Flow Malfunction.
I'm sure the only thing you have left is you may have to replace the EGR valve or check for any leak from the vaccum lines going to to EGR valve.
Posted on Jun 01, 2009
A code P0135 may mean that one or more of the following has happened:
= O2 Heater element resistance is high
= Internal short or open in the heater element = O2 heater circuit wiring high resistance = open or short to ground in the wire harness.
What to do; = Repair short or open or high resistance in wiring harness or harness connectors.
= Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)
A code P0141 may mean that one or more of the following has happened:
Same as above: mentioned in P0135.
What do do is the same as above, so i am leaning towards and faulty wire harness since you have replaced both O2 sensors. Make sure the wire harness has no break in it or crushed connection clips. The other thing to look for is a bad fuse that is used to heat up the O2 sensor. It may not say O2 sensor on it, it may piggy back off something else so check all the fuse and make sure the O2 has a good ground and not corroded. Good luck and hope this helps.
Posted on Jun 25, 2009
SOURCE: 2003 VW Golf - O2 Sensor?
Honestly it is not very expensive to replace, but it is not extremely important. What it does is measure the oxygen/fuel level coming out of the engine. This tells the computer that the engine is either using the right air/fuel mixture or allows the computer to change the mixture slightly to allow the car to run properly. You could pull the sensor out and clean the terminal as it usually has alot of carbon build up due to its location, but this is normally a temporary fix. I hope this helps you with your problem.
Posted on Jul 23, 2009
It is probably the sensor before the cat. if it has a heater. The heater circuit going bad is a common problem, it does not affect the way the car runs after it warms up, it is an emission device to heat the O2 sensor up quicker than the hot exhaust gas would. It should be replaced because it will keep your check engine light on and you would not be able to pass an emission test.
Posted on Oct 12, 2009
Tips for a great answer:
Jan 19, 2013 | 1999 Honda Accord
Sep 27, 2012 | 2001 Ford Taurus
Apr 13, 2012 | 2003 Pontiac Montana
Aug 25, 2011 | Hyundai Tiburon Cars & Trucks
Aug 03, 2011 | Honda Accord Cars & Trucks
May 11, 2011 | 2000 Nissan Maxima
Jan 31, 2011 | Chevrolet Suburban 1500 Cars & Trucks
Jan 14, 2011 | Ford Mustang Cars & Trucks
Jun 25, 2009 | 2003 Honda Accord
Oct 13, 2008 | 1996 Pontiac Grand Am
144 people viewed this question
Usually answered in minutes!