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 WOT issue and ASR issue 
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Joined: Mon Apr 13, 2009 7:42 pm
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Location: Mill Hall, Pa
Post WOT issue and ASR issue
Well since I am the newest newb to the LS1 scene I am looking for advice from some of the seasoned vets here. In case you didn't notice my post in the general chat section I have signed off on a 99 Z/28. The car is straight and surprisingly clean for the year and mileage. However, its not a perfect car nor did I expect it to be for being 13 years old.

WOT issue:

I didn't get a chance to run the car on a dry day when I bought it. So any kind of horseplay was out of the question at that time. I got it home and when the weather dried out I tried to play with it a little. I tried punching it from a standstill in first gear. It will spin the tires (with the traction control off Bob!) for about 10 feet and once it hits 2000 rpm it will bog down and hook and slowly pick up speed. I was unsure what to think because the stock LT1 I had could perform better than this. So then I tried WOT from a rolling start from different mphs and the result was the same. It will get to 2000 rpm and slowly increase rpm until I hit about 3-3500 rpm and then climb decent until I get to about 4700 rpm and then sounds like no power is being made and its just winding out until the transmission shifts. This has the same affect for anything above half throttle to WOT. I tried a top end run and once I hit about 115-120 at WOT the car will buck like it lost fuel or the ignition died. At that point I backed out and stopped testing.

ASR issue:

I understand that this is suppose to be traction control for the car. However, I feel like it has a mind of its own. The button for it and the fog lights gets extremely hot regardless if I have it on or off. Once it gets hot I have no control to turn it on or off. Also I have noticed that it will turn itself on and off as it pleases regardless of the temperature of the button. The ASR in the dash comes on and off in accordance with the light on the button. Also noticed that the "low trac" light comes on in a spin even when the ASR is turned off. Is that normal?


I did some searching online and first things I came across was a possible worn out fuel pump. So this afternoon I stopped in to see Steve V. We hooked up his gauge to the fuel rail and it is reading almost 60 psi at idle and stayed there even when we reved it up a few times. I haven't seen a SES light or anything of that nature either. The car runs and drives normal as long as I am under half throttle. Any chance that these two problems are linked and the asr is affecting my WOT.

Looking for any suggestions on things to try and information I can gather at this time. Thanks ahead of time for the help!!!

_________________
'12 XMR 800R
'05 Duraturd
'99 Z28 (A4, T-Top)
'92 K1500
'87 T/A
'86 IROC-Z


Sun Nov 18, 2012 10:04 pm
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Location: Lumberton, NJ
Post Re: WOT issue and ASR issue
Could be lots of things, clogged CATS, a bad transmission, bad ASR module, jacked up wiring harness. Sometimes a fuel pump won't rear it's ugly head until it gets hot so just revving the car in the driveway may not do it. If it has 70,000 miles or more and the factory pump changing it is money in the bank because it will probably fail soon. Is the car tuned and if so by who?

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-Nick
9/11/01 NEVER forget!
1988 Trans Am GTA Resto-Mod project *Coming in 2018*
2001 Formula Firehawk #293
2002 Trans Am MRM Convertible
2002 Trans Am WS6 #206 346CI of unbridled fury *gone 4 ever*


Mon Nov 19, 2012 9:16 pm
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Location: Lake Wynonah
Post Re: WOT issue and ASR issue
Since there are no codes i'd think to check out the tune as well. How far are you from Stump's in Pine Grove?

It's weird that even with the TCS off you still get an indicator light when you have tire slip i think.

LOL....yeah...TCS is a bugger when trying to do a burn out. Even a little one as i had intended that day.

That burnout ended with smoke coming out of the AC ducts in the car. Worried me for a second! lol


Sat Nov 24, 2012 2:39 pm
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Joined: Mon Apr 13, 2009 7:42 pm
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Location: Mill Hall, Pa
Post Re: WOT issue and ASR issue
Sorry I didn't reply sooner. My girl was home for a week pass before she gets shipped to Kuwait so I didn't do much other than spend time with her.

I can find no record if the car has a tune or not. To answer your question Bob, I am about 100 miles from stump. Gotta love living away from everyone and everything.

The low trac light has come on even when I am traveling the highway. :screwy Also I have noticed on longer drives with the car I am getting a hot/sulpher smell from the car. It is leaning me toward the CATS are partially plugged or worse.

The car has 122,xxx miles on it. Fuel pump, filter amongst other things are on the list of to do for preventive maintenance because I don't know when or what has been changed on the car if anything. I do want to ask about a fuel pump anyone would recommended?

_________________
'12 XMR 800R
'05 Duraturd
'99 Z28 (A4, T-Top)
'92 K1500
'87 T/A
'86 IROC-Z


Sun Nov 25, 2012 7:46 pm
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Location: Lumberton, NJ
Post Re: WOT issue and ASR issue
Walbro 255 with a hotwire kit

_________________
-Nick
9/11/01 NEVER forget!
1988 Trans Am GTA Resto-Mod project *Coming in 2018*
2001 Formula Firehawk #293
2002 Trans Am MRM Convertible
2002 Trans Am WS6 #206 346CI of unbridled fury *gone 4 ever*


Mon Nov 26, 2012 8:22 pm
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Post Re: WOT issue and ASR issue
K, Any chance you can tell me where I can pick this up?

_________________
'12 XMR 800R
'05 Duraturd
'99 Z28 (A4, T-Top)
'92 K1500
'87 T/A
'86 IROC-Z


Tue Nov 27, 2012 2:29 am
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Location: New Ringgold, PA
Post Re: WOT issue and ASR issue
I bought mine from Speed Inc. a few years back.

http://www.speedinc.com/catagory.cfm?ca ... Electrical

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1994 Trans Am money pit
1987 Iroc money pit
2006 Silverado Z71 part time DD
2011 Cadillac CTS-V part time DD / money pit


Tue Nov 27, 2012 10:00 am
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Post Re: WOT issue and ASR issue
I just bought a pair of aeromotive 340 stealth pumps for mine for $170. Each from a&a they are definitely nice pumps. I don't have them in the car yet but have read good reviews.

If your getting sulfur smell could be the cats, egr, or even a really dirty throttle body sticking. But definitely do as mentioned above. Do the typical routine maintenance then go from there.

_________________
2001 Black WS-6
440 cu/in 6-speed 608 rwhp 550 ft/lbs

1969 Camaro Z-28
434 cu/in, P/G, and way too much NOS
915 rwhp SOLD

2005 Dodge Ram 2500
Cummins with auto

1998 Silverado
383 cu/in, auto, with multi port


Tue Nov 27, 2012 11:26 am
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Post Re: WOT issue and ASR issue
n2o-armd wrote:
... a really dirty throttle body sticking.


Now I am very curious as to how a dirty TB could produce that smell. I am not doubting you just curious.

_________________
'12 XMR 800R
'05 Duraturd
'99 Z28 (A4, T-Top)
'92 K1500
'87 T/A
'86 IROC-Z


Tue Nov 27, 2012 1:05 pm
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Joined: Mon Jan 26, 2009 10:36 am
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Location: Danville, PA
Post Re: WOT issue and ASR issue
What's your voltage? Sulfur smell is also the smell of a battery boiling over, and would also explain the switches getting hot from the backlight bulbs burning brighter than they should. Check the voltage with a multimeter.

The lack of power and the smell could very well be partially plugged cats though, but the erratic electronic behavior could be high voltage... in my book, either is possible.

Does the check engine light come on when you first turn the key on? Is the wiring still hooked up to the o2 sensor behind the cat? I'm thinking it would throw a code/light, unless they had been disabled.

_________________
'98 Black T/A M6 car that turns with a baby cam, 243's, bling, & big stoppie things, Stump-tuned
'04 Avalanche 2500 lux-o-tow, Stump-tuned
1 fast, loud Italian v-twin and a really fast rice burner
KTM 200 2-stroke dirtybike that goes Riiiiing-ta-ting-ting-ting

My Psychologist says I have OMD - Obsessive Modification Disorder

stumpsgarage wrote:
I still want your parts, Rich


Tue Nov 27, 2012 1:50 pm
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Post Re: WOT issue and ASR issue
You can also tap (GENTLY) on the CATS with a rubber mallet and see if they rattle. If they are collapsed should sound like a bunch of broken glass or sand when you hit them.

_________________
-Nick
9/11/01 NEVER forget!
1988 Trans Am GTA Resto-Mod project *Coming in 2018*
2001 Formula Firehawk #293
2002 Trans Am MRM Convertible
2002 Trans Am WS6 #206 346CI of unbridled fury *gone 4 ever*


Tue Nov 27, 2012 7:17 pm
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Post Re: WOT issue and ASR issue
Drkbwtiprfm25 wrote:
n2o-armd wrote:
... a really dirty throttle body sticking.


Now I am very curious as to how a dirty TB could produce that smell. I am not doubting you just curious.



I will be very honest here. I have now idea but my buddy jim Manganelle proved it to me one day in his shop. With one of his customers cars. He removed the the tb cleaned it put it back on and it was cured. I think it might have to do with the pcv and egr crap that hooks to it.

_________________
2001 Black WS-6
440 cu/in 6-speed 608 rwhp 550 ft/lbs

1969 Camaro Z-28
434 cu/in, P/G, and way too much NOS
915 rwhp SOLD

2005 Dodge Ram 2500
Cummins with auto

1998 Silverado
383 cu/in, auto, with multi port


Mon Dec 03, 2012 8:48 am
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Joined: Mon Apr 13, 2009 7:42 pm
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Location: Mill Hall, Pa
Post Re: WOT issue and ASR issue
Well today the car finally decided to spit me a couple codes out. So I got a hold of my neighbors code reader and here is what it showed me ...

P0137 - O2 sensor circuit low voltage bank 1 sensor 2

P0157 - O2 sensor circuit low voltage bank 2 sensor 2

I don't know exactly this means entirely. So if anyone can help me what this is trying to tell me.

I found this on the ls1tech forum:

"Hey All! I'm brand neew to the forum and I used this forum to solve my specific issue and I figured I would give back by posting the problem and the fix!

Car: 1999 Pontiac Firebird Trans Am 5.7 LS-1 6spd. 82k miles. prior service history unknown (Just bought car).

Symptoms: Funky hesitation at mid range throttle, normal idle, normal low throttle accelleration and WOT (Wide open throttle) (Although it felt like it was lacking). Codes P0137 and p0157 which according to the manual are post cat oxygen sensors sending low voltage signals. Sulphuric type smell from exhaust, semi-poopy gas mileage and occassional backfire.

Diagnostics prior to consulting forum: Replaced spark plugs and wires (Bad condition) and examined ignition coils = No change, Compression = WNL (Within normal limits), Fuel pressure = WNL, planned on changing fuel filter and finally examined air filter.

Suspected Mass Air Flow sensor messing with AFR but didn't know how to test it so I scanned forums! One memeber mentioned casually about cleaning his MAF and the same codes I had thrown when attempting to answer another posters question about a hesitation.

Solution: Removed MAF, saw massive build up of carbon-like material all over elements on MAF. Cleaned with $10 can of MAF cleaner from Advance Auto parts and VIOLA! Car runs like it has 30 more HP!!!!! Runs smoother, accellerates like a raped ape, and no more smell or misfires! Codes cleared and now non existent! I hope this helps others with a similar issue!
"

For $10 I think I'll give it a shot and worse comes to worse at least I know my MAF is cleaned.

_________________
'12 XMR 800R
'05 Duraturd
'99 Z28 (A4, T-Top)
'92 K1500
'87 T/A
'86 IROC-Z


Last edited by Drkbwtiprfm25 on Wed Dec 05, 2012 10:15 pm, edited 1 time in total.



Wed Dec 05, 2012 9:53 pm
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Location: Schuylkill Haven, PA
Post Re: WOT issue and ASR issue
I have those and it is pretty much saying that your O2 sensors are bad.

Replace them along with the other normal wear items with a tune up. Should be a good place to start, will definitely help it run better, and won't break the bank.

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1996 Camaro SS - Just some bolt ons
2013 Subaru Legacy Sport - afraid to void the warranty!
1977 Chevy K10 - just starting on this heep


Wed Dec 05, 2012 10:12 pm
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Location: Lake Wynonah
Post Re: WOT issue and ASR issue
Drkbwtiprfm25 wrote:
Well today the car finally decided to spit me a couple codes out. So I got a hold of my neighbors code reader and here is what it showed me ...

P0137 - O2 sensor circuit low voltage bank 1 sensor 2

P0157 - O2 sensor circuit low voltage bank 2 sensor 2

I don't know exactly this means entirely. So if anyone can help me what this is trying to tell me.

I found this on the ls1tech forum:


For $10 I think I'll give it a shot and worse comes to worse at least I know my MAF is cleaned.


I'm dieing to hear the outcome here!

Good luck.


Thu Dec 06, 2012 7:42 am
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Location: Mill Hall, Pa
Post Re: WOT issue and ASR issue
99hawk409 wrote:
I'm dieing to hear the outcome here!

Good luck.



Believe it or not it actually worked. I took it all apart today and the first thing I found was a bunch of pieces of what looked like the seal for from the air filter to the lid stuck in the MAF. So I pulled it all out and then sprayed the MAF out with the cleaner. I did it two or three times to make sure I got it clean and put it all back together. I checked out the lights on the front of the car while I was at it and replaced a couple parking light bulbs.

Later tonight I started the car up and left to go out for a drink to unwind with some friends. I turned the ASR off and figured what the hell. "Time to be proven wrong again"... Well to my surprise it actually worked. I have smooth and strong acceleration from idle up to redline. I tried it several times to make sure it wasn't a fluke. Same result every time. Pretty sure I got some tire smoke out of a few of them.

So I tried an all out run and still shutting down around 118. I am starting to think that the car has a governor on it! :gripe

At least now I can breathe a little easier as I start a full maintenance on the car.

_________________
'12 XMR 800R
'05 Duraturd
'99 Z28 (A4, T-Top)
'92 K1500
'87 T/A
'86 IROC-Z


Fri Dec 07, 2012 2:41 am
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Post Re: WOT issue and ASR issue
Drkbwtiprfm25 wrote:
So I tried an all out run and still shutting down around 118. I am starting to think that the car has a governor on it! :gripe


When I bought the '94 Z that I owned for a week, one thing they didn't tell you was that if you got the "regular" tires (235/55-16) and not the "performance" (245/50-16) tires, the car has a 118mph speed limiter, the exact speed rating of "T" rated tires that came with it. Did they do the same thing even with the LS cars?

_________________
'98 Black T/A M6 car that turns with a baby cam, 243's, bling, & big stoppie things, Stump-tuned
'04 Avalanche 2500 lux-o-tow, Stump-tuned
1 fast, loud Italian v-twin and a really fast rice burner
KTM 200 2-stroke dirtybike that goes Riiiiing-ta-ting-ting-ting

My Psychologist says I have OMD - Obsessive Modification Disorder

stumpsgarage wrote:
I still want your parts, Rich


Fri Dec 07, 2012 3:05 pm
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Post Re: WOT issue and ASR issue
Eskimo wrote:
When I bought the '94 Z that I owned for a week, one thing they didn't tell you was that if you got the "regular" tires (235/55-16) and not the "performance" (245/50-16) tires, the car has a 118mph speed limiter, the exact speed rating of "T" rated tires that came with it. Did they do the same thing even with the LS cars?



I am believing that they did. My Z has 235s on it. Here I was thinking someone just put the wrong size on the car. Yippie :screwy

_________________
'12 XMR 800R
'05 Duraturd
'99 Z28 (A4, T-Top)
'92 K1500
'87 T/A
'86 IROC-Z


Fri Dec 07, 2012 6:47 pm
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Post Re: WOT issue and ASR issue
I have the 118mph speedo in my T/A :shakehead

Now I know why!

_________________
1994 Trans Am money pit
1987 Iroc money pit
2006 Silverado Z71 part time DD
2011 Cadillac CTS-V part time DD / money pit


Fri Dec 07, 2012 7:17 pm
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Post Re: WOT issue and ASR issue
I still got the 155 speedo in mine. What is the point tho when I can only reach 118....

_________________
'12 XMR 800R
'05 Duraturd
'99 Z28 (A4, T-Top)
'92 K1500
'87 T/A
'86 IROC-Z


Fri Dec 07, 2012 7:21 pm
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Post Re: WOT issue and ASR issue
Drkbwtiprfm25 wrote:
I still got the 155 speedo in mine. What is the point tho when I can only reach 118....


Tuuuuuuuuuuuuuuuuuuuune

_________________
-Nick
9/11/01 NEVER forget!
1988 Trans Am GTA Resto-Mod project *Coming in 2018*
2001 Formula Firehawk #293
2002 Trans Am MRM Convertible
2002 Trans Am WS6 #206 346CI of unbridled fury *gone 4 ever*


Sat Dec 08, 2012 8:15 am
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Post Re: WOT issue and ASR issue
Harner wrote:
I have the 118mph speedo in my T/A :shakehead

Now I know why!


Weird... I think mine still had the 150mph speedo, even though it was limited to 118. Looking back, I really thought it was the end of the world, that there was no way to bypass that limiter.. :lmao4 Ahh, to be 18 again. NO THANKS!

_________________
'98 Black T/A M6 car that turns with a baby cam, 243's, bling, & big stoppie things, Stump-tuned
'04 Avalanche 2500 lux-o-tow, Stump-tuned
1 fast, loud Italian v-twin and a really fast rice burner
KTM 200 2-stroke dirtybike that goes Riiiiing-ta-ting-ting-ting

My Psychologist says I have OMD - Obsessive Modification Disorder

stumpsgarage wrote:
I still want your parts, Rich


Sat Dec 08, 2012 1:18 pm
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Post Re: WOT issue and ASR issue
Batman wrote:
Drkbwtiprfm25 wrote:
I still got the 155 speedo in mine. What is the point tho when I can only reach 118....


Tuuuuuuuuuuuuuuuuuuuune


Well I do believe that is in order but I would like to get the exhaust and air box on the car before I do that so its not a waste of money to do a before and after.

_________________
'12 XMR 800R
'05 Duraturd
'99 Z28 (A4, T-Top)
'92 K1500
'87 T/A
'86 IROC-Z


Sun Dec 16, 2012 3:58 am
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