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Po135 And Po141
#1
Codes 135 and 141 came up. Both relate to the o2 sensors. I had both changed with OEM sensors but the codes remain. I now also have a stumble when the car is at a stand still and idling. The stumble comes and goes. Where should i look next? PLEASE HELP!!! 2002 svt focus
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#2
Just by chance you dont not have an A/F Gauge hooked up?

David
[Image: sigfocuscanada.jpg]
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#3
NoiSeeVT,Jul 26 2007, 01:03 PM Wrote:Just by chance you dont not have an A/F Gauge hooked up?

David
[right][snapback]244908[/snapback][/right]
No, but is something i can do on my own? Where would i hock it up?
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#4
Let's start at the beginning ... your car threw codes 135 and 141 ... you diagnosed the problem as o2 sensors ... replaced them but the codes remain ... you now have a stumble that you didn't have before ... is that it?

What other mods ... what o2 sensors did you have before ... how many km ... what other repairs / replacements ... etc ... a bit more detail might help get to the bottom of this.


jamcan42,Jul 25 2007, 10:11 PM Wrote:Codes 135 and 141 came up. Both relate to the o2 sensors. I had both changed with OEM sensors but the codes remain. I now also have a stumble when the car is at a stand still and idling. The stumble comes and goes. Where should i look next? PLEASE HELP!!! 2002 svt focus
[right][snapback]244885[/snapback][/right]
2008 Fusion SEL MTX - DD1 * 2009 Fusion SEL - DD2 * 2007 Focus ZXW - R*I*P * 2004 Focus ZTW CD Silver - sold * 2004 Focus ZTW Black - sold * 2003 Focus ZTW Black - sold * 2001 Focus ZTW Gold - sold * 2000 Focus SE Wagon (ZTW option) - Black - sold * 2000 Focus SE Wagon (ZTW option) - Gold R*I*P

2003 Focus ZX5 infra-red Track Rat - R*I*P
2003 ZX5 CD Silver Track Rat - retired, but still in the driveway


New track rat: 2000 ZX3, Atlantic Blue * JRSC with lots more to come

* New Zetec crate motor - NFG - thanks Topspeed *
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#5
jamcan42,Jul 26 2007, 09:57 AM Wrote:
NoiSeeVT,Jul 26 2007, 01:03 PM Wrote:Just by chance you dont not have an A/F Gauge hooked up?

David
[right][snapback]244908[/snapback][/right]
No, but is something i can do on my own? Where would i hock it up?
[right][snapback]244913[/snapback][/right]

Im thinking, he was thinking that could have been the problem...

Are you sure both those codes have to do with 02 sensors?
[Image: ncclogo.jpg]
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#6
I found the problem!!!!Fuse # 18 in the engine bay was blow. It controls the o2 sensors heaters. Wow all that trouble for a $2.00 fuse. Thanks for the imput. I hope this helps someone else out in the future.
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