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Old 02-22-2015, 12:46 PM   #1
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P2195 and P2197

So I was driving along today and suddenly my car started to idle rough. It felt and sounded like it was cammed.

I was running my Bama 93R at the time then switched back to the stock tune immediately to see if it was just a tune issue. It continued to idle rough on the stock tune too.

After a few miles the CEL came on. Pulled the codes and got P2195 and P2197. O2 sensor signal biased/stuck lean (bank 1, sensor 1) and O2 sensor signal biased/stuck lean (bank 2, sensor 1). In other words, the sensors on the headers. I have a completely stock exhaust aside from the axlebacks, which wouldn't cause this.

Weird...
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Old 02-22-2015, 04:50 PM   #2
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Now I don't know if this is true or not, I'm basing this on what I was told from my Ford service advisor.

He told me the problems with aftermarket tunes are things like this. They tend to make settings lean to get all the power it can....once again I'm not saying it's true , it's just what I was told.
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Old 02-22-2015, 04:52 PM   #3
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Quote:
Originally Posted by VIG View Post
So I was driving along today and suddenly my car started to idle rough. It felt and sounded like it was cammed.

I was running my Bama 93R at the time then switched back to the stock tune immediately to see if it was just a tune issue. It continued to idle rough on the stock tune too.

After a few miles the CEL came on. Pulled the codes and got P2195 and P2197. O2 sensor signal biased/stuck lean (bank 1, sensor 1) and O2 sensor signal biased/stuck lean (bank 2, sensor 1). In other words, the sensors on the headers. I have a completely stock exhaust aside from the axlebacks, which wouldn't cause this.

Weird...
Could be as simple as bad and gummed up sensors. Might want to pull them and take a look

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Old 02-22-2015, 05:52 PM   #4
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Quote:
Originally Posted by Socal Stangman View Post
Now I don't know if this is true or not, I'm basing this on what I was told from my Ford service advisor.

He told me the problems with aftermarket tunes are things like this. They tend to make settings lean to get all the power it can....once again I'm not saying it's true , it's just what I was told.

Yeah, I was thinking that too, but in theory it should go back to normal when I put the stock tune back on.


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Could be as simple as bad and gummed up sensors. Might want to pull them and take a look

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Yeah, you're probably right. I'm going to email Bama and see what they say.
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Old 02-23-2015, 09:14 AM   #5
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Originally Posted by VIG View Post
So I was driving along today and suddenly my car started to idle rough. It felt and sounded like it was cammed.

I was running my Bama 93R at the time then switched back to the stock tune immediately to see if it was just a tune issue. It continued to idle rough on the stock tune too.

After a few miles the CEL came on. Pulled the codes and got P2195 and P2197. O2 sensor signal biased/stuck lean (bank 1, sensor 1) and O2 sensor signal biased/stuck lean (bank 2, sensor 1). In other words, the sensors on the headers. I have a completely stock exhaust aside from the axlebacks, which wouldn't cause this.

Weird...
Quote:
Originally Posted by natestang07 View Post
Could be as simple as bad and gummed up sensors. Might want to pull them and take a look

Hey VIG - Sorry about the scare here! It sounds like that this could definitely be in regards to the sensors as the code is typically in relation to them malfunctioning. Shoot the Bama Team a call and they're happy to troubleshoot this with you! They've tuned your setup many times over and I'm positive that this is something small that they'll be able to work through quickly. I just want to go on record here in regards to the leaning out comment and Bama absolutely does not do this! My Bullitt along with our shop GT were test beds for their new V2 Tunes and if you're not running them right now I highly recommend that you take a look into them! The only reason why my car isn't on camera below is because I'm camera shy! Plus Green just doesn't look great in our studio!


VIG Let me know how you make out and if you have any other questions!
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Old 02-23-2015, 11:01 PM   #6
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So Bama got back to me, promptly as usual.

The more I drove it the more it felt like a vacuum leak, so during lunch, I went out to my car and disconnect and reconnected every vacuum hose I could find. Started the car back up and idles smooth and AFR is back to normal.

I don't know which hose it was, but it doesn't matter to me because it seems to be fixed now.
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