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-   -   Installed OFH but... (https://www.ft86club.com/forums/showthread.php?t=94736)

ShibaYuki 09-12-2015 08:16 PM
Installed OFH but...
 
I just got a P0171, P2097 and a P219A code. And I have searched it up. It says I'm running to lean, but I can smell gas. Like I've been driving a gokart. ps: running catless headers and catless FP w/ stg2 uel oct91. So I think that's the gas smell.
I tried clearing the code with the OFT, but it came back after a while.
I wouldn't know how to check for leaks, or check if my MAF is dirty, check my o2 sensors or how to fix such things.
Any help would be greatly appreciated.

wparsons 09-13-2015 10:07 AM
Are you already running the UEL tune?

P0171 is too lean on bank 1
P2097 is too rich on bank 1
P219A is a/f ratio imbalance on bank 1

These cars only have one bank for O2 sensors, so you can ignore the bank 1 part. If this wasn't happening before the header, it's pretty safe to rule out the MAF.

Are you getting all three codes back, or just the lean code?

Did you install the header, or have a shop do it? If it was done at a shop, I'd go back and ask them to check for leaks and to make sure both O2 sensors are plugged in and in the right locations.

ShibaYuki 09-13-2015 04:32 PM
Quote:
Originally Posted by wparsons (Post 2388626)
Are you already running the UEL tune?

P0171 is too lean on bank 1
P2097 is too rich on bank 1
P219A is a/f ratio imbalance on bank 1

These cars only have one bank for O2 sensors, so you can ignore the bank 1 part. If this wasn't happening before the header, it's pretty safe to rule out the MAF.

Are you getting all three codes back, or just the lean code?

Did you install the header, or have a shop do it? If it was done at a shop, I'd go back and ask them to check for leaks and to make sure both O2 sensors are plugged in and in the right locations.
Thanks for the response. I'm on UEL stg2 91oct OFT v2.068. And it only started after I took my car to nextmod to install it for me. I'm also now getting P0137. It's saying rear O2 sensor low voltage. Is it safe to drive the car and just erase the code for a bit? As well as is it normal to smell gas on full out catless exhaust?

drewbot 09-13-2015 05:30 PM
Well the car probably is in limp mode, so it's safe to drive it to the next place provided you don't rev it high

Sent from my A0001 using Tapatalk

HeadBanger 09-13-2015 05:40 PM
The reason you smell gas is because you're catless.

ShibaYuki 09-13-2015 06:32 PM
Quote:
Originally Posted by drewbot (Post 2388901)
Well the car probably is in limp mode, so it's safe to drive it to the next place provided you don't rev it high

Sent from my A0001 using Tapatalk
The car is now in the garage and just sitting there.

I'm getting the codes back so it's either it has a leak, or O2 sensors are bad?
Would reusing the old OEM gaskets be the cause of this when I installed the OFH?

D_Thissen 09-13-2015 07:22 PM
Could be. You should use new gaskets. Are the 02 sensors plugged in correctly (black to black/grey to grey. In the right bungs)?

ShibaYuki 09-13-2015 07:42 PM
Quote:
Originally Posted by D_Thissen (Post 2388999)
Could be. You should use new gaskets. Are the 02 sensors plugged in correctly (black to black/grey to grey. In the right bungs)?
I may have to take off work tomorrow just to get this issue fixed. I also have to buy new gaskets at the dealership tomorrow. I will check if my o2 sensors are plugged in the right place. From what I saw earlier, the black is on black, and grey is on grey. I'm not sure about the bungs. I can't see them.

wparsons 09-13-2015 08:42 PM
Quote:
Originally Posted by ShibaYuki (Post 2388865)
Thanks for the response. I'm on UEL stg2 91oct OFT v2.068. And it only started after I took my car to nextmod to install it for me. I'm also now getting P0137. It's saying rear O2 sensor low voltage. Is it safe to drive the car and just erase the code for a bit? As well as is it normal to smell gas on full out catless exhaust?
It really sounds like something wasn't installed right. The rear O2 code might be because it's catless, but I thought the UEL tune came with the cat efficiency code(s) disabled by default?

Bergen23 09-13-2015 09:02 PM
Sounds like nextmod screwed the pooch

ShibaYuki 09-13-2015 09:08 PM
Quote:
Originally Posted by D_Thissen (Post 2388999)
Could be. You should use new gaskets. Are the 02 sensors plugged in correctly (black to black/grey to grey. In the right bungs)?
Quote:
Originally Posted by wparsons (Post 2389061)
It really sounds like something wasn't installed right. The rear O2 code might be because it's catless, but I thought the UEL tune came with the cat efficiency code(s) disabled by default?
Quote:
Originally Posted by Bergen23 (Post 2389080)
Sounds like nextmod screwed the pooch
I'm not getting any of the cat efficiency code(s). Steve99 was saying it may be a leak at the o2 sensor since one of the bung didn't snug in at first. They forced the o2 sensors in one of the bungs. So now that leads me to think that where the problem lies. Leak where the o2 sensor is. Question is, I don't know which o2 sensor.
How would I know if that is where the actual leak is?
And how would I be able to fix this?

wparsons 09-13-2015 09:45 PM
Voltage too low wouldn't be from a leak, that sounds like either they plugged the O2's into the wrong plugs (swapped), or something was damaged.

ShibaYuki 09-13-2015 09:54 PM
Thanks, I'll check out the plugs right now. But I really doubt it was swapped by accident. I believe it's a leak at the o2 sensors. Or maybe it's damage. Does that mean I have to buy new sensors?

D_Thissen 09-13-2015 10:21 PM
Yup, if they were damaged or cross threaded I think the only option is to replace them.

ShibaYuki 09-14-2015 07:16 AM
Quote:
Originally Posted by D_Thissen (Post 2389148)
Yup, if they were damaged or cross threaded I think the only option is to replace them.
I'm going to conclude the problem is with a damage O2 sensor. Since all signs points to it. I'm gonna replace the O2 sensors and get new gaskets today. And get it reinstalled by another shop. Is there any shop I can go to that are reputable? I would've thought nextmod would be able to do it properly knowing their name. Not to put them down, they're a great shop and know their stuff but just made a mistake on mine.

wparsons 09-14-2015 07:20 AM
Quote:
Originally Posted by ShibaYuki (Post 2389124)
Thanks, I'll check out the plugs right now. But I really doubt it was swapped by accident. I believe it's a leak at the o2 sensors. Or maybe it's damage. Does that mean I have to buy new sensors?

Have this checked out by someone before you start throwing parts at it... and take it somewhere that'll actually look and test things before buying sensors. A pair of O2's is not going to be cheap (going to guess about $500-$600 for the pair).

A cross threaded and/or leaking O2 shouldn't show voltage too low. Cat inefficiency or too lean/rich, sure. So make sure they verify the sensors are plugged into the right plugs, and that the harness connectors are in good shape. This could be as simple as a poor connection.

Worst case, if the sensor was damaged from cross threading, the bung on the header might be too damaged to simply chase the threads again, and it might need a new bung welded on.

ShibaYuki 09-14-2015 07:30 AM
Quote:
Originally Posted by wparsons (Post 2389439)
Have this checked out by someone before you start throwing parts at it... and take it somewhere that'll actually look and test things before buying sensors. A pair of O2's is not going to be cheap (going to guess about $500-$600 for the pair).

A cross threaded and/or leaking O2 shouldn't show voltage too low. Cat inefficiency or too lean/rich, sure. So make sure they verify the sensors are plugged into the right plugs, and that the harness connectors are in good shape. This could be as simple as a poor connection.

Worst case, if the sensor was damaged from cross threading, the bung on the header might be too damaged to simply chase the threads again, and it might need a new bung welded on.
Oh God. I didn't know it was that expensive for a pair of O2 sensors. Should I take it back to nextmod and have them looked at it? Since they did do the install. And how do I go about getting a new bung for the openflashheaders? Jesus, this is giving me more problem than I thought.

steve99 09-14-2015 07:37 AM
Quote:
Originally Posted by wparsons (Post 2389439)
Have this checked out by someone before you start throwing parts at it... and take it somewhere that'll actually look and test things before buying sensors. A pair of O2's is not going to be cheap (going to guess about $500-$600 for the pair).

A cross threaded and/or leaking O2 shouldn't show voltage too low. Cat inefficiency or too lean/rich, sure. So make sure they verify the sensors are plugged into the right plugs, and that the harness connectors are in good shape. This could be as simple as a poor connection.

Worst case, if the sensor was damaged from cross threading, the bung on the header might be too damaged to simply chase the threads again, and it might need a new bung welded on.

Generally the header bungs being stainless steel are way tougher than the 02 sensor threads , so its usually the o2 sensor that comes off worse for wear.

ShibaYuki 09-14-2015 07:43 AM
Quote:
Originally Posted by steve99 (Post 2389446)
Generally the header bungs being stainless steel are way tougher than the 02 sensor threads , so its usually the o2 sensor that comes off worse for wear.
I'll try to get it looked at by the shop tonight and hope to find the real problem. The shop installed the headers before they closed so I couldn't contact them right after I started getting closed. And they were also closed on Sunday. I was stuck driving around with codes and erasing it at the same time.
I only drive the car on weekends as well.

steve99 09-14-2015 07:50 AM
Quote:
Originally Posted by ShibaYuki (Post 2389438)
I'm going to conclude the problem is with a damage O2 sensor. Since all signs points to it. I'm gonna replace the O2 sensors and get new gaskets today. And get it reinstalled by another shop. Is there any shop I can go to that are reputable? I would've thought nextmod would be able to do it properly knowing their name. Not to put them down, they're a great shop and know their stuff but just made a mistake on mine.
as the other guys said dont buy parts on spec, take it back to shop that did the job, o2 sensors not cheap and it might be just a leak or bad connection ect.

double check the shop did not install o2 spacers, a guy here in OZ got headers installed and the wombats at the shop installed an o2 spacer on the front primary o2 sensor.

you don't need o2 spacer or de-fouler at either of the sensors as your tuned

if you can with your oft log AFR (front 02 sensor), Commanded AFR (what ecu is asking for) and Wideband AFR (rear 02 sensor) also log rpm,ltft,engine load. do a couple of steady say 20% throttle runs up to say 4000rpm and post up logs

those guys at shop should have used NEW gaskets and cleaned up the threads on the header for o2 fittings, they definitely should not have forced 02 sensors into bungs on header.

If they used old gaskets it will leak for sure and if the 02 sensor not screwed in all the way then it wont be in exhaust flow and it will leak causing all sorts of issues.

ShibaYuki 09-14-2015 08:44 AM
I will go back today with new gaskets. So they can install that as well as check out the O2 sensors. I really hope it's just a bad connection.

ShibaYuki 09-14-2015 04:39 PM
Quote:
Originally Posted by steve99 (Post 2389451)
as the other guys said dont buy parts on spec, take it back to shop that did the job, o2 sensors not cheap and it might be just a leak or bad connection ect.

double check the shop did not install o2 spacers, a guy here in OZ got headers installed and the wombats at the shop installed an o2 spacer on the front primary o2 sensor.

you don't need o2 spacer or de-fouler at either of the sensors as your tuned

if you can with your oft log AFR (front 02 sensor), Commanded AFR (what ecu is asking for) and Wideband AFR (rear 02 sensor) also log rpm,ltft,engine load. do a couple of steady say 20% throttle runs up to say 4000rpm and post dup logs

those guys at shop should have used NEW gaskets and cleaned up the threads on the header for o2 fittings, they definitely should not have forced 02 sensors into bungs on header.

If they used old gaskets it will leak for sure and if the 02 sensor not screwed in all the way then it wont be in exhaust flow and it will leak causing all sorts of issues.
I just called them. And I asked if they can look at it and install my new gaskets. They won't be able to look at my car until Thursday. Meaning, no peace of mind.
Should I take it to a different shop or wait it out. Thursday is just pushing it since if the problem is not fixed then, I won't have a car for the weekend when I need it.

drewbot 09-14-2015 04:41 PM
Quote:
Originally Posted by ShibaYuki (Post 2389979)
I just called them. And I asked if they can look at it and install my new gaskets. They won't be able to look at my car until Thursday. Meaning, no peace of mind.
Should I take it to a different shop?
Try Ivan at iGarage if you're near Markville mall

Sent from my A0001 using Tapatalk

ShibaYuki 09-14-2015 05:52 PM
Quote:
Originally Posted by drewbot (Post 2389983)
Try Ivan at iGarage if you're near Markville mall

Sent from my A0001 using Tapatalk
Thanks for the recommendation, but I was looking for a shop around Brampton/Mississauga area. I wouldn't want to drive the car that far with these issues. =(

drewbot 09-14-2015 06:02 PM
See if Chris @ Touge Tuning is still there today

Sent from my A0001 using Tapatalk

ShibaYuki 09-14-2015 08:00 PM
Update:

I just came back from looking at the problem. It's a pretty big problem in my opinion.
So the rear o2 sensor is cross threaded. Need to replace it. The rear o2 sensor is real loose and you can take it off by hand without screwing it out.

These leads to all the codes. Running to lean, since there's an air leak at the o2 sensors and as well as a rear o2 sensor low voltage since the sensor is barely on the headers.

I just don't understand, if they knew the bung was stripped, they should've just tapped/chased it and screwed it. Not forced it. Now I have to buy a new rear o2 sensor and hope to God that it'll get fixed then. They just have to chase/tap the bung. I really don't know where to get the headers welded with new bungs.

steve99 09-14-2015 08:18 PM
Quote:
Originally Posted by ShibaYuki (Post 2389979)
I just called them. And I asked if they can look at it and install my new gaskets. They won't be able to look at my car until Thursday. Meaning, no peace of mind.
Should I take it to a different shop or wait it out. Thursday is just pushing it since if the problem is not fixed then, I won't have a car for the weekend when I need it.
That a decision you will have to make.
if the original shop has stuffed o2 sensors they may pay for replacements, second shop will just charge you

Bergen23 09-14-2015 08:51 PM
I'd be getting nextmod to either fix everything with you watching, or get them to pay for all the replacement parts and repairs then take it to another shop.

ShibaYuki 09-14-2015 08:58 PM
To be honest, I don't care about the $ now. Since it's already said and done. I just want my baby running good without a headache. =(
I really wish if it was done right the first time, we wouldn't have a problem like this.

Bergen23 09-14-2015 09:20 PM
It's not about the money, it's the principle. You shouldn't be paying to fix something that you entrusted a shop to do correctly.

ShibaYuki 09-14-2015 09:27 PM
Quote:
Originally Posted by Bergen23 (Post 2390305)
It's not about the money, it's the principle. You shouldn't be paying to fix something that you entrusted a shop to do correctly.
Wish I had the balls, or the right words to say it to them. Haha. But my first priority is getting it fixed. Thanks a lot for the advice and encouragement.
If anything, would you like to come with me, and say that to them? lol.

Bergen23 09-14-2015 09:43 PM
Quote:
Originally Posted by ShibaYuki (Post 2390313)
Wish I had the balls, or the right words to say it to them. Haha. But my first priority is getting it fixed. Thanks a lot for the advice and encouragement.
If anything, would you like to come with me, and say that to them? lol.
If I wasn't working out west right now, I'd love to. Just go in there and ask them how they're going to make it right.

CwpBrz 09-14-2015 10:20 PM
Jules you're making me not want to touch my car lol.

BTW i need to hear your exhaust with the UEL now so i can film it again ;)

CwpBrz 09-14-2015 10:20 PM
double post

D_Thissen 09-14-2015 11:45 PM
Go to nextmod and show them that the O2 sensor is loose. If they aren't willing to fix it, then go see Chris @ Touge Tuning.

ShibaYuki 09-14-2015 11:48 PM
Quote:
Originally Posted by D_Thissen (Post 2390434)
Go to nextmod and show them that the O2 sensor is loose. If they aren't willing to fix it, then go see Chris @ Touge Tuning.
Will do. They said they're willing to fix it, but I gotta buy the rear o2 sensor first. And hope they fix it and not ruin the new sensor.

Bergen23 09-14-2015 11:53 PM
Quote:
Originally Posted by ShibaYuki (Post 2390437)
Will do. They said they're willing to fix it, but I gotta buy the rear o2 sensor first. And hope they fix it and not ruin the new sensor.
No, let them know that since they cocked it up, they're buying you the part.

D_Thissen 09-15-2015 01:08 AM
Quote:
Originally Posted by Bergen23 (Post 2390440)
No, let them know that since they cocked it up, they're buying you the part.
x2. You paid them for there "service" and "expertise". They screwed up. Not you.

Side note, remind me to never deal with them.

Bergen23 09-15-2015 01:20 AM
Quote:
Originally Posted by D_Thissen (Post 2390513)
x2. You paid them for there "service" and "expertise". They screwed up. Not you.

Side note, remind me to never deal with them.
Makes me glad I have tools and a workspace, along with an Internet connection for DIYs

ShibaYuki 09-17-2015 04:31 PM
Quote:
Originally Posted by steve99 (Post 2390246)
That a decision you will have to make.
if the original shop has stuffed o2 sensors they may pay for replacements, second shop will just charge you
Quote:
Originally Posted by Bergen23 (Post 2390305)
It's not about the money, it's the principle. You shouldn't be paying to fix something that you entrusted a shop to do correctly.
Quote:
Originally Posted by D_Thissen (Post 2390434)
Go to nextmod and show them that the O2 sensor is loose. If they aren't willing to fix it, then go see Chris @ Touge Tuning.
Update 2:
Just fixed it and drove around to see if I'm still having problems and I got a P0171 (lean bank 01) code again. No other codes w/ it. I have changed the gaskets, changed the rear O2 sensor and it wasn't loose at all. It was snug perfectly. Torqued it to spec. And I'm not sure why I'm still get that code. Either an air leak or the gas I'm using. I'm on Shell 91 octane ever since I got the car. Never put anything else (no crickets).
At the moment I'm reflashing back to stock and then back to stg2 UEL 91oct then drive around again and see if the code comes back.


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