View Full Version : P0135 and P0141

09-14-2005, 07:42 PM
So, what are the chances that it is actually anything other than the O2 censors? The code book says they are O2 censor heater failures, but looking at the manual it looks pretty much as though the O2 censor is the only thing that could go. Any ideas?

gator gt
09-14-2005, 08:00 PM
Here, check your codes here as well....


Seems to have several items to check under your P0135 listing. P0141 says to look back under P0135....

Give that a swirl.


09-14-2005, 10:38 PM
Hmmm, one of the causes is a low battery. After I cleared the codes and tried to start the car it wouldn't crank over. All I got was the dead battery click. It has been acting like it was going down lately. Time to stick it on the charger and see what happens. Thanks.

09-24-2005, 12:22 AM
Ok, for those interested here was the cause of the codes. The front O2 fault was caused by loose wires at the connector. The rear fault was actually a bad sensor.

01-13-2009, 02:49 PM
Would this work http://cgi.ebay.com/ebaymotors/ws/eBayI ... 0353595021 (http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=250353595021) for the P0141 (front O2 sensor)?

01-13-2009, 04:11 PM
yes but I would spend the coin and get the OEM O2 sensor.

01-13-2009, 04:14 PM
universal o2 that your have to solder connections, and its no-name brand. like said spend the money on a ngk or denso oem replacment

01-14-2009, 01:14 PM
I found a universal Bosch for 60 and change. I dont mind splicing the connections. E30 o2s with the OEM connectors were 160. So E30 owners would buy mustang 5.0 units and splice them in for 50.

01-14-2009, 01:24 PM
best thing to do with universals is to pull the pins out of the connectors and solder the wires to the pin. i think i pick my denso with connectors for around $68
i looked at ngk.com you can get the front o2 for $66.xx

01-14-2009, 04:11 PM
I skipped soldering and picked up some quick connectors. Just strip a little wire on both ends you want to join, insert into the connector, then crimp. Insulated connectors are a few cents at your auto parts store, and it saves a lot of time. Forget the box thing the Bosch generic O2 sensor comes with, I think it's crap.

01-14-2009, 04:17 PM
Forget the box thing the Bosch generic O2 sensor comes with, I think it's crap.

I agree. The box thing does do a nice job insulating the connections, but the quick connect is easier. So maybe do both. :)