03-16-2014, 07:55 PM | #1 |
old school chevy rodder
Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012
Location: Oregon
Posts: 5,588
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Dang glad I had a competent tuner install my headers and cam...CEL ALERT
SO first of all I picked all the parts myself being a old hot rodder, I went with the top of the line TSP cam and ended up with 491 h.p. and 448 ft lbs torque on a stock ls3 with the CAI induction and Stainless power headers with cats for $712 from Maryland speed( I polished them too).
Mr. Wong personally test drove my car, and made great gains for my car and the cam is a rockin rollin Beast! I have a link to his website with his facebook that shows my idle somewhat and a dyno run in his many videos..... It actually sounds a lot better that the video really and when it opens up my dual mode whoooo weeee its a Monster and note the h.p. on my car just goes to the sky man I am glad I picked that cam! https://www.facebook.com/pages/Wongs...g/115667950915 That's me I am Mark, I try to help out when I can people on here though I may not be the most knowledgeable with these new fangled machines being as I am just a old hot rodder from before computers ate the world and catalytic converters started farting everywhere. I did know enough to do a bunch of home work and had Driven Racing oil in it for the break in( then dumped), and still have it in there for a couple hundred more miles before I dump it again and go to driven LS30 and would like to thank those on here who have helped me to find info through their experience!!! Thank you!!! I did have him do the one four shift disable and the rear two o2 sensor disable and ditch most torque management, and he remapped fuel tables and well a bunch of stuff on his HP tuning software to make it a Awesome ride!!! This dyno chart was on a mustang dyno SAE and It shows that I chose the cam the guy from TSP says kick butt and yup he is right! I have a 2013 with dual mode and electric power steering to help out make power and I can hear a slight whistle out my exhaust almost like I have a blower sound at real low speed it flows so well. And BTW people do move away on the freeway or stare on the street if I open it up its almost too loud and sneaky quiet both, I would have to say this build went perfect so far....( of course bought things for the rear end now like a LPW diff cover. bmr trailing arms, bushings etc I am getting on it ASAP to protect it! The reason I wanted to do this post was not to brag as I love my car, but to share this: When riding home on the freeway I experienced a CEL the check engine light came on after 40 miles of driving and I thought WTF!!!! It was going like a raped ape on steroids, so I got the codes read about twenty miles later at a auto parts store and it was delayed responses from the front two o2 sensors OMG I thought what have I got myself into. So I went home and called mr.Wong and he said well bring it back here I will have to disable the front o2s and see whats going on. SO I thought hell this is not good, I did know the fronts had to do some important stuff like AFR stuff, so I took it back and he logged onto it while talking with another mechanic with some race car uniform who was visiting and talking about a GTO he wanted to barrow the smoke tester to check the intake on it before he worked on a ZR1...and in like one minute he was done with my car after logging into with his computer. But I figured I was o.k to go and would worry about it later, and so I have thought until today he might have disabled my front o2's as maybe my AFR was so mapped it did not need them? SO I read up on catalytic converters all over the net on sites and worried and finally emailed him thinking maybe I do need a tuning adjustment because I was worried he turned off my front o2's? Well it turns out he did not, and I had never read on here about front o2's throwing codes only the rears and this is his email response to my worries: The front sensors are enabled. They are working as they should be and the car is running in closed loop as it should be. The only codes that were disabled were the codes that has to do with the PCM way of seeing sensor response. If the sensor doesn't act like it thinks it should then it sets the DTC. With the added DTC for model year 13 and up, the sensitivity was cranked way up. With the headers and where the sensors are located, the sensors will NEVER going to give the PCM the same signal it expected when it was stock. The engine should run just fine with the way its set up, and it will run in closed loop just as it did before the mods. Don't read too much into the internet BS, as there are LOTS of it in there. Thomas Wong Wong's Performance Engineering 9305 NE HWY 99 Vancouver WA 98665 Who knew they had turned up the sensor sensitivity on 13 and up Camaros for the front o2's? not me that's for sure, and that they added DTC diagnostic trouble codes to the computer, and let alone that this guy could alter my car in like one minute while talking with another guy and being on a lap top......WTF....... I am amazed and no wonder it is so friggin awesome!!! I know he charged less than the competition near by but that he was a electrical engineer for twenty years yes, but that he was such a g.m. guru he knew things I never even heard of on here...WOW I am impressed more now. And for all of you whose cars may have this problem what he just said in his email in a couple sentences is the answer to something I have never even heard of being a problem here before....front o2 codes on a header install. So here is the word from stainless works I found about them: Will your Stainless Works Headers throw a check engine light (CEL)? This is a very common question that we get asked when someone wants to install long tube headers on their vehicle. Before we go into the full explanation, we can definitely say that not every car is exactly the same. Some people will throw a CEL with our headers, and some people will not. The CEL can come on for two main reasons when you're dealing with any kind of long tube header and high flow cats/offroad lead pipes. The first reason is the rear o2 sensors will throw a cat efficiency code. Basically because the high flow cats flow a lot better than the factory cats, the o2 sensor is sensing more emissions than before and they will freak out. The way you fix that issue is you tune out the rear o2s. There are hand held programmers that can do this for you or you can contact your local tuner or contact Stainless Works for a recommendation. This cat efficiency code is most common. The second reason a CEL will come on is because of the front o2 sensors. The front o2 sensors are meant to reach a certain temperature reading in a certain amount of time. If it doesn't reach that temperature, then it will throw a code. The o2 sensor bung is located in the collector of the long tube header. This usually means the location is pushed farther away than where the o2 bung is from the factory. From the extra flow of the long tube, and the new location of the o2 bung, it does not heat up as fast or as much as factory manifolds/lead pipes. This code will definitely require a custom tune to help change the reading from the computer. With this said, we would like to re-iterate that not every vehicle is the same. Some may install the full system and never have a code thrown.. We hope this is true for everyone, but I would not count on it 100%. If you're thinking about doing long tubes headers, you are most likely throwing around the idea of a tune as well. If not, you should definitely consider it. The long tubes and tune go hand in hand and will maximize the most power and efficiency out of your vehicle. Stainless Works Catback Exhaust Systems do not effect the check engine light and they will not affect your local emissions testing. Well thank god I found this guy who could tune!!! What what do you all think? I am glad to share this info and hope it helps some out! I think I will go for a drive
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2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop
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03-16-2014, 08:07 PM | #2 |
Drives: IBM 2SS Join Date: Jan 2011
Location: San Antonio, TX
Posts: 858
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good story and congrats, but the real question is did you struggle getting out of that sand?
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03-16-2014, 08:50 PM | #3 |
old school chevy rodder
Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012
Location: Oregon
Posts: 5,588
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actually yes I had traction control on and it kept going on and off and on and off...lol funny story my wife actually went behind and pushed..........rofl, and no I did not take the TC off and shoot a roster tail at her. Just could not resist the picture.
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2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop
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03-16-2014, 09:03 PM | #4 |
Drives: 02 Z06, 95 Trans Am, 2012 ZL1 Join Date: Mar 2012
Location: Southeast
Posts: 1,838
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Yep when you install headers you're going to have to turn off the P015B and the P015D codes. And like you said its a about a 30 sec fix.
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Bryan 2018 ZL1 M6
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