Stupid 02 sensors

Dragondj11 · April 6th, 2009, 02:11 PM

Hey guys I need your help again. I have finally got my car running and on the road again, after having to replace the fuel pump and filter and other parts because some dipbleep poured some crap in my tank and fouled that. Fixed the exhaust leak, Replaced the Mass Air Flow sensor, and had to replace the new car version of the distributer cap (can't think of what that is at the moment).

But now the freaking rear 02 sensors are bad. Well I am brokeand cannot replace those any time soon. Well I figured no worries, I have my X-cal3. So I hooked it up, and put in my new program to run on the premium fuel (BTW wow what a difference. She flat hauls now it is nice) and told it to turn them stupid things off. Well it says it turned them off, and the CEL went out for about 30 miles. Now it is back on telling me those two are bad. No other codes, just the two for them. Anyone have any ideas???

WLJohnson05 · April 6th, 2009, 05:06 PM

thats bc u cant turn on off the front ones i dont believe. u can turn off the codes but it will come back on bc there is actually something wrong that needs to be replaced

Onemanzu · April 6th, 2009, 05:10 PM

he said the rear ones are bad... and that he turned them off in the program.

double check that everything got saved and programmed correctly, thats my only though for now.

WLJohnson05 · April 6th, 2009, 05:13 PM

Originally Posted by Onemanzu

he said the rear ones are bad... and that he turned them off in the program.

double check that everything got saved and programmed correctly, thats my only though for now.

shit i missed that. then yea if he did it right they shouldnt be on. what code is it throwing? are you sure its the back ones throwing a code?

Dragondj11 · April 6th, 2009, 05:29 PM

Well I think I am sure. This is what they are:

P0155 Oxygen Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
P0135 Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

WLJohnson05 · April 6th, 2009, 09:56 PM

Originally Posted by Dragondj11

Well I think I am sure. This is what they are:

P0155 Oxygen Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
P0135 Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

not positive but i think those are the front sensors not the rears

ByPopularDemand · April 7th, 2009, 02:45 AM

Yeah I would assume sensor 1 is in the front, as it wold be the first one to read the oxygen

WLJohnson05 · April 7th, 2009, 02:48 AM

i think it is, cuz if he turned the back ones off in the tuner then he wouldnt be catching codes like that. ill do some google work and check back

WLJohnson05 · April 7th, 2009, 02:49 AM

wow that was an easy quickie >>>

P0155
"This code refers to the front oxygen sensor on Bank 2. The heated circuit in the oxygen sensor decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0155. See also: P0135 (Bank 1)."

Dragondj11 · April 7th, 2009, 10:25 AM

Well that makes since. I did not even think to double check the tech that did the work on what he wrote down for me. I will have to give him crap. Well that sucks, while those are on she still ain't going to run right. Guess I gotta do new ones.

Thanks all

April 6th, 2009, 02:11 PM	#1
Dragondj11 Regular 2001 V6 Mustang Join Date: May 2008 Location: Corning CA Posts: 52 iTrader: 0 reviews	Stupid 02 sensors Hey guys I need your help again. I have finally got my car running and on the road again, after having to replace the fuel pump and filter and other parts because some dipbleep poured some crap in my tank and fouled that. Fixed the exhaust leak, Replaced the Mass Air Flow sensor, and had to replace the new car version of the distributer cap (can't think of what that is at the moment). But now the freaking rear 02 sensors are bad. Well I am brokeand cannot replace those any time soon. Well I figured no worries, I have my X-cal3. So I hooked it up, and put in my new program to run on the premium fuel (BTW wow what a difference. She flat hauls now it is nice) and told it to turn them stupid things off. Well it says it turned them off, and the CEL went out for about 30 miles. Now it is back on telling me those two are bad. No other codes, just the two for them. Anyone have any ideas???

April 6th, 2009, 05:06 PM	#2
WLJohnson05 MM's Database Error 2004 Mustang V6 322.8 rwhp Join Date: Mar 2007 Location: VA Posts: 13,106 iTrader: 8 reviews	thats bc u cant turn on off the front ones i dont believe. u can turn off the codes but it will come back on bc there is actually something wrong that needs to be replaced __________________ I'm trying to get rid of this stuff, feel free to make me an offer!: Kenwood Head Unit $155 SCT Mass Air Flow Sensor $200 Tial Wastegate Springs $40 (10psi and 3.6psi)

April 6th, 2009, 05:10 PM	#3
Onemanzu ¡ʇsnq ɹo uʍop ǝpısdn Join Date: Oct 2006 Location: Looking for free hand jobs in poland springs nebraska... silly gooses Posts: 12,514 Blog Entries: 1 iTrader: 0 reviews	he said the rear ones are bad... and that he turned them off in the program. double check that everything got saved and programmed correctly, thats my only though for now. __________________ My Foz

April 7th, 2009, 02:45 AM	#7
ByPopularDemand Hardcore Enthusiast 2000 V6 Join Date: Jan 2007 Location: Albuquerque Posts: 2,670 iTrader: 0 reviews	Yeah I would assume sensor 1 is in the front, as it wold be the first one to read the oxygen __________________ 2000 V6 vert Mac LT headers, Mac O/R H-pipe, Mac CAI, ASP 25% underdrive pulley(r.i.p), SCT tune, 8.8 rear and 4.10 gears.

April 7th, 2009, 02:48 AM	#8
WLJohnson05 MM's Database Error 2004 Mustang V6 322.8 rwhp Join Date: Mar 2007 Location: VA Posts: 13,106 iTrader: 8 reviews	i think it is, cuz if he turned the back ones off in the tuner then he wouldnt be catching codes like that. ill do some google work and check back __________________ I'm trying to get rid of this stuff, feel free to make me an offer!: Kenwood Head Unit $155 SCT Mass Air Flow Sensor $200 Tial Wastegate Springs $40 (10psi and 3.6psi)

April 6th, 2009, 05:29 PM	#5
Dragondj11 Regular 2001 V6 Mustang Join Date: May 2008 Location: Corning CA Posts: 52 iTrader: 0 reviews	Well I think I am sure. This is what they are: P0155 Oxygen Sensor Heater Circuit Malfunction (Bank 2 Sensor 1) P0135 Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

April 7th, 2009, 02:49 AM	#9
WLJohnson05 MM's Database Error 2004 Mustang V6 322.8 rwhp Join Date: Mar 2007 Location: VA Posts: 13,106 iTrader: 8 reviews	wow that was an easy quickie >>> P0155 "This code refers to the front oxygen sensor on Bank 2. The heated circuit in the oxygen sensor decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0155. See also: P0135 (Bank 1)." __________________ I'm trying to get rid of this stuff, feel free to make me an offer!: Kenwood Head Unit $155 SCT Mass Air Flow Sensor $200 Tial Wastegate Springs $40 (10psi and 3.6psi)

April 7th, 2009, 10:25 AM	#10
Dragondj11 Regular 2001 V6 Mustang Join Date: May 2008 Location: Corning CA Posts: 52 iTrader: 0 reviews	Well that makes since. I did not even think to double check the tech that did the work on what he wrote down for me. I will have to give him crap. Well that sucks, while those are on she still ain't going to run right. Guess I gotta do new ones. Thanks all

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