Well Virgil was a good enough dude to hook his laptop up to my truck (he has HP Tuners) and we drove around for awhile to see if there were any problems. Turns out, the O2 sensors are barely registering and HP Tuners is giving an error message. This is all dumbspeak - I'm not sure of the exact terms, but anyway, something is wrong. Virg is gonna email me the file and I'll send it to Allen and hopefully he (or anyone else) can give me some advice.
do you think this is your problem with your truck
04 Grand Prix GTP
03 Z71 wanting a Turbo ,Stall, and Tune BAD
THE SURGEON GENERAL SAYS NOTHING ABOUT SMOKIN A FORD
yessir...I mean they weren't even registering. Sometimes BARELY. Other times they would spike a little and then go back down to virtually nothing.
I'm needing some input guys - I don't have a clue what the problem might be. Maybe I should have Allen send me a tune with them deleted? Is that an option?
<div class='quotetop'>QUOTE(DamnYankee @ Apr 10 2007, 08:50 PM) [snapback]89463[/snapback]</div>No that is not an option... You would just kill the code and not correct your fueling problem. If your going to go that route, Delete the 02's and have allen tune you in open loop. Thats the quick easy proven fix.yessir...I mean they weren't even registering. Sometimes BARELY. Other times they would spike a little and then go back down to virtually nothing.
I'm needing some input guys - I don't have a clue what the problem might be. Maybe I should have Allen send me a tune with them deleted? Is that an option?
[/b]
I kinda suspected this if you read my first post in your "I quite!" thread. I see it in about every 10 trucks and the fix can be a real bitch in the trucks that do it! Part of the problem is the headers and having a cam dont help either. Basicaly with your headers, The 02's have moved farther downstream and the switch points have changed. Also stockers are very temp dependant. Installing some Bosch 13111's and ajusting some things in the tune can help as well, But I have a few trucks that the only fix was to go open loop. Get some data at the track I guarantee this is your issue. I bet there either flat lining or switching slowly at WOT. Most trucks that have this problem once fixed pick up about .4 at the track.
which ones r bad the front 2 or the rear
04 Grand Prix GTP
03 Z71 wanting a Turbo ,Stall, and Tune BAD
THE SURGEON GENERAL SAYS NOTHING ABOUT SMOKIN A FORD
All 4! Front and rear left bank, front and rear right bank.
you need the front 2 have allen turn off the rear 2 in the tune.
the front r for your air/fuel mix
04 Grand Prix GTP
03 Z71 wanting a Turbo ,Stall, and Tune BAD
THE SURGEON GENERAL SAYS NOTHING ABOUT SMOKIN A FORD
There's sooooooo much I don't know. Thanks man. Still need to figure out what's up with them. Hopefully it's nothing too serious.
The sensors are supposed to vary up and down constantly. If they have low voltage readings all the time something is wrong.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
See, I don't know all the lingo. Yes, that's exactly what they were doing - little to no voltage.
What could some of the causes/issues be?
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