I think I have a bad tune!!!
I think I have a bad tune!!! I have a 00 WS6 with MS3, terminator heads, bolt-ons, 42lb injectors and the car runs very rich. When I say very rich I mean when its idling it makes everything around my car smell like pure gasoline. if I pull into garage its unbearable to be in there, even if I shut off right away. At a red light you can't have the windows down. All my buddies with F-body's, mustangs, etc... say the tune is bad, so I wanted to get on here and ask some tune guru's to give me insight and whether I need to go pay to get it done again...
Thanks for any input.
FYI it did put down 463rwhp and 420 rwTq
Thanks for any input.
FYI it did put down 463rwhp and 420 rwTq
On The Tree
Joined: Apr 2011
Posts: 181
Likes: 1
Honestly without a wideband to show the actual AFR answering your question is like watching people try to positively identify if your tires are low on air without a gauge. Based on your power output I would suspect you don't have catalytic converters anymore? Technically THAT alone would result in a more than unusual foul smell on a headers only car BUT I have never tuned a car that smelled as rich as your describing. A friend of mine did get a professional dyno tune from someone local and installed catalytic converters afterwards because his wife didn't like the gas smell. Sounds like you have a really bad gas smell beyond anything I've experienced.
IF the tune is off which I wouldn't doubt it is...I figure your tuner has missed the most important 1st step in tuning ANY vehicle...making certain that the replacement fuel injectors have correct data in the tune PRIOR to tuning anything else. IF you tuner says its fine have him prove it by showing actual AFR values from idle to WOT. Also ask him to provide you with a copy of the tune by email. We can review it here...Truth is in the puddin'!
IF the tune is off which I wouldn't doubt it is...I figure your tuner has missed the most important 1st step in tuning ANY vehicle...making certain that the replacement fuel injectors have correct data in the tune PRIOR to tuning anything else. IF you tuner says its fine have him prove it by showing actual AFR values from idle to WOT. Also ask him to provide you with a copy of the tune by email. We can review it here...Truth is in the puddin'!
Last edited by 2TR; Dec 7, 2011 at 09:35 PM.
I have a copy of the graph I can post I that will help. Also the car has a hard time idling, he never got it to idle right. When I come to a start or roll and stop in traffic I have a tough time keeping it idled. And also when I turn A/C on it will try to shut off. And have idle issues. It sucks so bad.
I don't have cats. But it's headers with cutout, but even if I shut it to go through stock exhaust it still is horrible. But before I did heads, fast 92/92, 42 lb injectors the smell was not bad at all. When someone is behind me in another car they say it's an overwhelming gas smell.
I don't have cats. But it's headers with cutout, but even if I shut it to go through stock exhaust it still is horrible. But before I did heads, fast 92/92, 42 lb injectors the smell was not bad at all. When someone is behind me in another car they say it's an overwhelming gas smell.
The Air-Fuel-Ratio on the dyno graph only shows you what it was at WOT... that doesn't show squat for how the tune is under normal driving conditions! There are a lot of hack tuners out there that don't know what they are doing... Possibly he didn't tune for the new injectors - only hacked the PE table to make it right on the dyno. Probably has no idea what he is doing if he sent you away with a car that won't idle...
I would find someone in your area that knows what they are doing and get it done right...
I would find someone in your area that knows what they are doing and get it done right...
On The Tree
Joined: Apr 2011
Posts: 181
Likes: 1
Give him (bunk tuner) this link for idle tuning...has pictures and is in tri-color crayola!
http://www.hptuners.com/forum/showth...ht=idle+tuning
http://www.hptuners.com/forum/showth...ht=idle+tuning
The same tuner also tuned my buddies LT1 and it also never ran right and smelled like pure gasoline. I guess this guys reputation superseded his knowledge. I guess I will save up and take to Vengeance Racing, they are a few hours a way. I have heard great things about them.
Trending Topics
On The Tree
Joined: Apr 2011
Posts: 181
Likes: 1
I have a copy of the graph I can post I that will help. Also the car has a hard time idling, he never got it to idle right. When I come to a start or roll and stop in traffic I have a tough time keeping it idled. And also when I turn A/C on it will try to shut off. And have idle issues. It sucks so bad.
I don't have cats. But it's headers with cutout, but even if I shut it to go through stock exhaust it still is horrible. But before I did heads, fast 92/92, 42 lb injectors the smell was not bad at all. When someone is behind me in another car they say it's an overwhelming gas smell.
I don't have cats. But it's headers with cutout, but even if I shut it to go through stock exhaust it still is horrible. But before I did heads, fast 92/92, 42 lb injectors the smell was not bad at all. When someone is behind me in another car they say it's an overwhelming gas smell.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0
Brett Foote
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever
Verdad Gallardo I just did some searches on here about my tuner and now I know the tune is ****! It was done at Carolina Auto Masters. So now it's either vengeance racing or tuned by frost. I'm leaning to frost from what I have read. What you guys think?
I have a 00 WS6 with MS3, terminator heads, bolt-ons, 42lb injectors and the car runs very rich. When I say very rich I mean when its idling it makes everything around my car smell like pure gasoline. if I pull into garage its unbearable to be in there, even if I shut off right away. At a red light you can't have the windows down. All my buddies with F-body's, mustangs, etc... say the tune is bad, so I wanted to get on here and ask some tune guru's to give me insight and whether I need to go pay to get it done again...
Thanks for any input.
FYI it did put down 463rwhp and 420 rwTq
Thanks for any input.
FYI it did put down 463rwhp and 420 rwTq
