P1131 error code

Well, hello Joe.

Well, in the past I have changed the o2 sensor a lot. And I have even replace the mass air flow sensor a lot too (I was so used to replacing that I have a extra one sitting on my desk now, lol). When I read my scanner it said something like power train and then it had the code P1131. And like you said in my van repair book it doesn't even have this code written in there unless I over looked it. So just out of frustration alone I cleared the code just to see if it would come back again. I drove it to church etc and it didn't come back on, at least not yet anyway. I was told by many that it could be the intake manifold gasket needs to be replace etc. But if you and others on here don't think I should have it replaced then I won't. I know some people now that said they would do it for $500.00. Well, here is what happened: well, as some of you know I am in a wheelchair and I have this lift on here and it has been giving me some trouble here lately so I had to park my van for a week. So my van has been sitting that long. I drove it yesterday and check engine light came on as well as the ABS light came on too. The ABS light started coming on first and then the check engine light came on and it produced that error code I was telling you about. That's all that happened basically in a nut shell.

Well, I checked the brake fluid level and that is fine. It could be the other two things you said. I notice when I gently put on the brakes until I come to a complete stop the ABS light won't come on. But if I have to slam on the brakes come on it comes on (that's why they call it the ABS system I guess etc). Anyway I have a scanner but it's not one of those fancy kind. It only reads the codes and not live data. I need to get one of those kind too. Far as the check engine like goes I drove it yesterday and it didn't come on at all (smh). Glad it didn't come on but don't know why it came on last week. Far has finding any vacuum hoses loose or cracked all of that has been fixed. Now being in a wheelchair I have no idea that they are really fixed but the repair guy told me that they where etc, (most frustrating). Looks like I will have to get myself a scanner like that so that way I can really check and see for myself what is going on / have way know what is happening anyway. Any idea what is a good model of scanner I could buy?

Oh, thank you so much. And I can just afford that one too. I will have to order that ASAP. That should help a lot and yes, I plan on keeping it for a very long time. In fact my check engine light just came back on again today too.

Okay, I sure will let you know what I find out. Soon I will have the scanner on order so hopefully it shouldn't take too long to get here. In the mean time the check engine light went back off on its on again. I plan on doing a scan when the light is off and on and see what it tells me once I get the scanner. Anyway, thank you for helping me once again.

Sorry guys for such a late reply. My wheelchair frame broke so I had to get that fix. I had this guy that said he didn't know how to weld aluminum, but he could find someone that could, and he would get back to me when I would hear from his friend. But no response. So, I had to find someone who knows how to weld aluminum (tig welder). So finally, I find one and got that fixed. Far as getting my scanner goes I haven't had the chance to order that yet because of that etc. And the P1131 code has gone off and come back on since I last checked in with you guys. But anyway, that's where things stand at the moment. :-( And again sorry for such a late reply. Hope you guys had a great Labor Day weekend.

Hi,

Wow! I have never seen anything like that before. I had no idea that kind of test could be performed on a vehicle. The page in the middle that you are providing is very helpful but I don't know of anybody smart of enough to perform that test on my van, lol. And I can't reach it to perform it myself etc. Also too since the last time I wrote you guys the check engine light went back off again. Something isn't right. But I sure need to find out what. And far as the scanner goes. I plan on ordering it as soon as possible / hopefully before something else pops up. I will let you know as soon as it arrives. Surely this scanner will pen point something. Also, if someone doesn't mind could someone please tell me how many o2 sensors does a 2000 Ford e150 v6 4.2l van suppose to have. A friend of mind says it has 4 but I thought it only has 2.

Hello there. First I must say I love how you did your diagram. It was easy to follow. But I do have a question. In picture 2. The one you drew the blue circle around. Say for example if I was sitting in my van behind the steering wheel facing the front of my van the sensor labeled HO2S-11 would be on the passenger side of the van, correct? If so I have always thought that the driver's side of the van is where bank 1 was located. Also, by the way someone hooked a very low budget scanner to my van and the error code they come up with was the same p1131, but it also said it was upstream 02 sensor Bank 1. And if that is located in the where I think that is located in the photo I am going to try and upload on here. That sensor looks as though it has never been changed ever! But the one in your diagram that says HO2S-21 has been replace. I will up load the photo. In the picture where you see my hand is lol the little red arrow points to the o2 sensor (on the passenger side of the van if you are sitting in it). That looks like it has never been changed ever. HO2S-22 and HO2-12 I can't see them at all of course etc. And in the picture that doesn't include my hand in it. You can see that one has been replaced. Because it looks new and everything etc.

Hello there. well, no, the picture with my hand in it shows that it hasn't been touched. It's very old, it looks as though that thing has been there since the van was made, lol. Anyway, i am glad you brought up the scanner thing. Some said they may help me get a scanner and i was wanting to ask is this one right here a step up from the one you picked? https://tinyurl.com/3nj9f6y3 just asking is because i have never bought a scanner before etc. I want to get the best model i can for under $200.00 etc

Well as I said I have never order one of these before so. Lol It's fine by me getting the scanner you talked about. Spending less money is okay with me. Lol Well I will let you know when and if it arrives.