P0132 Code Thrown

[Jake]

Originally Posted by cardude007617

well that mpg change can be because of weather or just slightly different driving habits.
so what controls or reads the O2 sensor? just the pcm or is there something in between. i ask because I am wondering if something got focked up from shorting the **** out of the sensor with that pigtail (my pigtail for the record ).

Well thats what SpruceGaGt said in Coupes thread that frying those wires shorted out his sensor, but at the same time if it was a serious problem with the sensor wouldn't that make the light stay on constantly instead of going on and off? Idk there is multiple things it could be but my friends dad is going to lend us the Tech 2 this weekend and we are going to for sure find the problem if it takes us all day because it is driving me nuts.

[Jake]

We hooked the Tech 2 to it again last weekend and once again there was nothing out of the ordinary. We checked each injector as well and nothing. No misfires either. We changed the plugs and wires as well that day and the plugs werent erally that dirty so its obvious the car isnt actually running rich but for some reason the Pcm thinks it is. My friends dad says he is 99% sure the problem either lies within the Pcm or the 02 sensor itself. I have never heard any complaints about Mark from Mp Racings tune jobs so I am going to rule out the pcm for now and change the 02 sensor early next week. Pretty much everything else has been checked/tested so it is one of those 2 things we think.

[Jake]

Well after further investigetion I have found this. The car will only kick the light on when the car is at 2100-2200 RPM's or more for 30 seconds (AKA highway driving) My a/f ratio gauge starts to read rich at this time until I let off the gas and it goes back to normal. I've tested it numerous times and that is the only time the light will come on. Everytime it was on the scanner we only tested it at idle or going slow so that could be why we never found anything. Hopefully this weekend I wil lget the Tech 2 again and I will see whats going on at WOT. Or at least whe nthe car exceeds 2200 RPM's.

[lone_wolf025]

Originally Posted by Jake

Well after further investigetion I have found this. The car will only kick the light on when the car is at 2100-2200 RPM's or more for 30 seconds (AKA highway driving) My a/f ratio gauge starts to read rich at this time until I let off the gas and it goes back to normal. I've tested it numerous times and that is the only time the light will come on. Everytime it was on the scanner we only tested it at idle or going slow so that could be why we never found anything. Hopefully this weekend I wil lget the Tech 2 again and I will see whats going on at WOT. Or at least whe nthe car exceeds 2200 RPM's.

I noticed a while back that on continuous long highway trips (two stop and starts) I get the same code flagged, but once I do "city" driving it goes away. Keep us posted...I'm leaning towards O2 sensor.

[Jake]

Originally Posted by lone_wolf025

I noticed a while back that on continuous long highway trips (two stop and starts) I get the same code flagged, but once I do "city" driving it goes away. Keep us posted...I'm leaning towards O2 sensor.

Same exact thing mine is doing. Goes away after a little city driving. Maybe my problem isn't related to my mods then I will have to pull out the 02 sensor and check it out.

[lone_wolf025]

Originally Posted by Jake

Same exact thing mine is doing. Goes away after a little city driving. Maybe my problem isn't related to my mods then I will have to pull out the 02 sensor and check it out.

Considering we have close to the same mods I'm not too surprised. How many miles are you on? With the original sensor too right?

[Jake]

Originally Posted by lone_wolf025

Considering we have close to the same mods I'm not too surprised. How many miles are you on? With the original sensor too right?

I just broke 52k yesterday on the original sensor yes. I am thinking running the car all winter + without a tuned pcm for a while it was running really rich and maybe just jacked up the sensor. Although my spark plugs didn't show much sign of running rich.

[lone_wolf025]

Originally Posted by Jake

I just broke 52k yesterday on the original sensor yes. I am thinking running the car all winter + without a tuned pcm for a while it was running really rich and maybe just jacked up the sensor. Although my spark plugs didn't show much sign of running rich.

I mentioned the matter to a mechanic and he seemed to think the sensor was bad. Apparently most O2 sensors are only rated for 50k miles he said and I've got near the same mileage. Gonna hit 54k pretty soon.

[Jake]

Originally Posted by lone_wolf025

I mentioned the matter to a mechanic and he seemed to think the sensor was bad. Apparently most O2 sensors are only rated for 50k miles he said and I've got near the same mileage. Gonna hit 54k pretty soon.

Hmm, I thought they were good for like 100k+ miles. I will for sure pull the 02 sensor this weekend or maybe tomorrow and check it out.

[lone_wolf025]

Originally Posted by Jake

Hmm, I thought they were good for like 100k+ miles. I will for sure pull the 02 sensor this weekend or maybe tomorrow and check it out.

That's what I thought too...technically any emissions related component is supposed to work for 8yrs/100k miles...but if a mechanic is telling me that many fail after 50k I'm inclined to believe him...but I'll ask my reg mechanic the same thing.

[Jake]

Bump for another question. Are 02 sensors year specific? I am thinking about going to get one from the junkyard to test if that will make the code go away, if it does I guess that means it is the front 02, which I am still leaning towards big time, just haven't had the time to fix it completely nor have I had the motivation to because only in the past week the light has been on for like 4-5 days. Before that, has only come on a handful of times in the past couple months.

[lone_wolf025]

Originally Posted by Jake

Bump for another question. Are 02 sensors year specific? I am thinking about going to get one from the junkyard to test if that will make the code go away, if it does I guess that means it is the front 02, which I am still leaning towards big time, just haven't had the time to fix it completely nor have I had the motivation to because only in the past week the light has been on for like 4-5 days. Before that, has only come on a handful of times in the past couple months.

Probably is the sensor...at this point you've checked most everything else so it wouldn't surprise me that much. Sensor and/or wiring to it. Keep us posted.

[Jake]

Originally Posted by lone_wolf025

Probably is the sensor...at this point you've checked most everything else so it wouldn't surprise me that much. Sensor and/or wiring to it. Keep us posted.

We were going to check it out tonight and put on my polished front valve cover but before we began I found something else interesting, a little group of wires below the front header were touching on the header since last year when I installed them I am guessing, and melted it away to almost bare wire. Am glad I saw this now, mainly the wires going to the starter were touching, so I zip tied them out of the way and covered a lot of them in some nice heat wrap stuff. But after I fixed that I didn't get a chance to look at it or do my valve cover . We did however briefly inspect the wiring of the sensor and that appeared to be ok, so I am sure it is the sensor itself as well.

[roadie]

so what was it?