[Z06] check engine light and stinger
Thread Starter
Burning Brakes
Joined: Oct 2000
Posts: 876
Likes: 23
From: Prescott Valley, AZ
check engine light and stinger
Had my check engine light come on out of nowhere yesterday. Codes were lean fuel system on banks one and two. I put a Halltech Stinger on a week ago and I suspect it is the culprit. I cleared the codes and tightened the clamps on the stinger. We'll see what happens.
What is interesting is the codes were history codes. Can a check engine be triggered by a history code?
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What is interesting is the codes were history codes. Can a check engine be triggered by a history code?
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Drifting
Joined: Aug 2000
Posts: 1,394
Likes: 31
From: Waco TX
Re: check engine light and stinger (mmorse)
My Z did the same thing right after I put on the Blackwing and the Borla Stingers. It happened about 4 or 5 times, then it stopped happening. When I had her dyno tuned a few months ago, I was running lean in the lower RPMs. After tuning, no more problems. The check engine light will stay on for a certain number of engine cycles after it is triggered. I just reset the codes each time and didn't worry about it.
[Modified by gasman29, 4:34 PM 6/11/2004]
[Modified by gasman29, 4:34 PM 6/11/2004]
Thread Starter
Burning Brakes
Joined: Oct 2000
Posts: 876
Likes: 23
From: Prescott Valley, AZ
Re: check engine light and stinger (gasman29)
Well the light came on again. This is twice now in 2 days. I cleared the codes. Same ones as before. Took off the stinger and checked for cracks. I found nothing so I tightened all the clamps a little more and put it back on. I really don't want to go back to stock because the car is definitely more responsive with the stinger.
I put a Vortex on my '01 and never had any issues with it. I had it on and off many times over the period I owned that car and never threw a code.
I leave the stinger on a little longer and see what happens. You say if I just keep clearing the codes, it will eventually stop?
mark
I put a Vortex on my '01 and never had any issues with it. I had it on and off many times over the period I owned that car and never threw a code.
I leave the stinger on a little longer and see what happens. You say if I just keep clearing the codes, it will eventually stop?
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Burning Brakes
Joined: Apr 2003
Posts: 1,140
Likes: 0
From: GOCC - Rebels Without A Clue Santa Barbara, CA
Re: check engine light and stinger (mmorse)
I've had mine on for about 6mos. Jim states that on 03, 04 models this can happen. Seems that they run leanner at a lower throttle position than previous models and this puts them right on the threshold of being to lean. After adding more air by installing the Stinger it places you right on the edge. Not all folks experience this problem, and the only way to fix it is to get a tune. Mine does it more after the car has been run and then it sits a while. When I drive it after that it will spit out a lean code. It happens once a month I would say. As far as the codes go I useally get "H" on one bank and a "H /C" on the other and when you clear them it goes away. 
Thread Starter
Burning Brakes
Joined: Oct 2000
Posts: 876
Likes: 23
From: Prescott Valley, AZ
Re: check engine light and stinger (Threed)
Well, the light came on gain. It now comes on every 6 start cycles and throws the same 0171H and 0174H codes. Looks like I'll have to decide whether I want to pay $500 for a tune or go back to stock. My $200 intake has suddenly gotten quite expensive. 
Threed, I suspect if you were to drive your car more often, mine is an everyday driver, it would throw codes more often than once a month. Mine must be paricularly lean to throw them every 6 starts.
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Threed, I suspect if you were to drive your car more often, mine is an everyday driver, it would throw codes more often than once a month. Mine must be paricularly lean to throw them every 6 starts.
mark
Team Owner
Joined: Jul 2003
Posts: 34,299
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From: [Enter Unoffensive Comment Here]
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St. Jude Donor '06
Re: check engine light and stinger (mmorse)
To be honest, I think the you'll be happy with a tune anyways. 
You'll probably gain a little over 10rwhp and you can make the car run properly thru the curve. It's an important component once you start making changes. 
You'll probably gain a little over 10rwhp and you can make the car run properly thru the curve. It's an important component once you start making changes.
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Team Owner
Joined: Jul 2003
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St. Jude Donor '06
Re: check engine light and stinger (mmorse)
I wonder if the code is of danger though. If you replace your cats with high flows you have the same problem. The computer is just reading a "stock" problem. I don't know the answer to your problem but I suspect it's the same. Someone will pipe up that has had this. 
Melting Slicks
Joined: Oct 2001
Posts: 2,112
Likes: 0
From: Alexandria Va
Re: check engine light and stinger (lager99)
Guys, i'll seriously be watching this thread- as i'm still expecting to recieve my Halltech soon. What is involved with the "Tune"? I didn't expect to have to do this either....maybe the Hall's can comment about this situation if they've heard about it before- because to be honest i'm a little leary now...and maybe wouldn't have even bought the product in the first place had this thread been in existance first. BTW, good luck mmorse.... 
[Modified by NEW77GUY, 5:59 PM 6/13/2004]
Team Owner
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St. Jude Donor '06
Re: check engine light and stinger (NEW77GUY)
Guys, i'll seriously be watching this thread- as i'm still expecting to recieve my Halltech soon. What is involved with the "Tune"? I didn't expect to have to do this either....maybe the Hall's can comment about this situation if they've heard about it before- because to be honest i'm a little leary now...and maybe wouldn't have even bought the product in the first place had this thread been in existance first. BTW, good luck mmorse.... [Modified by NEW77GUY, 5:59 PM 6/13/2004]
My BW thru codes for a couple days too. So did my LT's and cats, I just reset them. As far as the LS1 Edit NEW77GUY, it is a computer program to adjust ALL the performance specifics at every RPM level of your car. You can adjust MAS, MAF, lean out an RPM range by 1% etc...I don't think that many people get the tune for something as simple as an intake, but once you get further into modding it's pretty much a necessity. 
The price that you pay is for the program itself. Some tuners may include some programming with the charge for a few dyno runs. Mine has always been done with any changes I've made, and I'll tell you, a good tuner is more important than a good "mod" product.
Thread Starter
Burning Brakes
Joined: Oct 2000
Posts: 876
Likes: 23
From: Prescott Valley, AZ
Re: check engine light and stinger (lager99)
I put the stock air cleaner housing on the Halltech tunnel and smooth coupler. I have a K&N air filter in the housing. I'll let you know if any codes are thrown with this setup. I drove it this way to work today and felt a difference from the all Halltech setup. It's not a night and day difference but it is noticeable. The all Halltech setup is definitely better. I'm just not happy about having to get a tune just for an intake.
As far as contacting Halltech. Jim's got much bigger fish to fry right now than concerning himself with my intake.
mark
As far as contacting Halltech. Jim's got much bigger fish to fry right now than concerning himself with my intake.
mark
Instructor
Joined: Apr 2004
Posts: 102
Likes: 2
From: N'awlins Louisiana
Re: check engine light and stinger (mmorse)
I have had my Halltech on for a month now. My Z is only two months old! It threw lean codes for about a week. After refitting it twice I noticed one of the clamps was constantly coming loose. I wired it down so it couldn’t unscrew.
I haven’t had codes since then.
My suggestion is to; refit the unit, make sure the clamps are tight, clear the codes and wait it out. You should not need a “tune” just for an intake. My $0.02!
I haven’t had codes since then.
My suggestion is to; refit the unit, make sure the clamps are tight, clear the codes and wait it out. You should not need a “tune” just for an intake. My $0.02!
Melting Slicks
Joined: Oct 2001
Posts: 2,112
Likes: 0
From: Alexandria Va
Re: check engine light and stinger (SziTech)
Thanks for the explaination Lager99- I recieved my intake yesterday and put it on earlier today. Installation was quite easy, downloaded the directions from the website. I made sure the clamps were really tight and took it for a spin. "Seat of the pants" dyno tells me there's a difference. 
Hasn't thrown any codes yet...i'll stay with this and report if it does. $$ well spent in my book.
I recieved my intake yesterday and put it on earlier today. Installation was quite easy, downloaded the directions from the website. I made sure the clamps were really tight and took it for a spin. "Seat of the pants" dyno tells me there's a difference. Hasn't thrown any codes yet...i'll stay with this and report if it does. $$ well spent in my book.
Thread Starter
Burning Brakes
Joined: Oct 2000
Posts: 876
Likes: 23
From: Prescott Valley, AZ
Re: check engine light and stinger (NEW77GUY)
Just for fun, I've been testing different combos of stock and Stinger parts to see what happens. If we assume a lean condition on my car will result from introducing more air than the stock setup, then we can determine what different setups of these parts will indeed flow more than stock.
-I've tried the stock air bridge and coupler with the Warhead filter.
-I've tried the stock filter assembly with a K&N filter in zip tie mod config. with the Halltech bridge and coupler.
-I've tried the complete Halltech Stinger setup.
And the results are:
The only setup to throw lean codes was the complete Halltech setup. I'll let you draw your own conclusions.
mark
-I've tried the stock air bridge and coupler with the Warhead filter.
-I've tried the stock filter assembly with a K&N filter in zip tie mod config. with the Halltech bridge and coupler.
-I've tried the complete Halltech Stinger setup.
And the results are:
The only setup to throw lean codes was the complete Halltech setup. I'll let you draw your own conclusions.
mark
Melting Slicks
Joined: Oct 2001
Posts: 2,112
Likes: 0
From: Alexandria Va
Re: check engine light and stinger (mmorse)
Guess what i got today? Lean codes, both banks....just like you mmorse. Too bad, cause i think i deffinantly feel a difference in the performance. I've cleared the codes out, and i guess i'll see how long it takes for them to show up again. For all of us that own '04's here with intakes....is there anything we can do short of a $500 tune? Will this hurt our cars if left untuned and running lean? I really don't want to put that sucky stock airbox, ect. back on. 
Instructor
Joined: Jul 2001
Posts: 183
Likes: 0
From: Severna Park MD
St. Jude Donor '08
Re: check engine light and stinger (NEW77GUY)
As I stated in a related thread, I had the same problem on my 04 Z as you and mmorse. I cleared my codes three times and then drove the car, and the check engine light came on almost as soon as I pulled out of my driveway. I'm not taking any chances, the stock intake stays on until I get the car tuned. I agree, the car was running great with the Halltech, I just am leery of running the car in a lean condition. Good luck with your car.
Le Mans Master
Joined: Jun 2001
Posts: 7,330
Likes: 518
From: Admit Nothing, Deny Everything, Make Counter Accusations.
Re: check engine light and stinger (mmorse)
Well, the light came on gain.
Thread Starter
Burning Brakes
Joined: Oct 2000
Posts: 876
Likes: 23
From: Prescott Valley, AZ
Re: check engine light and stinger (rbartick)
Well, the light came on gain.
Put the stock box back on or reprogram. With your car this far out of tune I seriously doubt that the new airbox is providing a performance gain. Any gain you think you have is probably a result of the placebo effect.
Put the stock box back on or reprogram. With your car this far out of tune I seriously doubt that the new airbox is providing a performance gain. Any gain you think you have is probably a result of the placebo effect.
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Thread Starter
Burning Brakes
Joined: Oct 2000
Posts: 876
Likes: 23
From: Prescott Valley, AZ
Re: check engine light and stinger (NEW77GUY)
Guess what i got today? Lean codes, both banks....just like you mmorse. Too bad, cause i think i deffinantly feel a difference in the performance. I've cleared the codes out, and i guess i'll see how long it takes for them to show up again. For all of us that own '04's here with intakes....is there anything we can do short of a $500 tune? Will this hurt our cars if left untuned and running lean? I really don't want to put that sucky stock airbox, ect. back on.
mark