disapointment at the track !!!!!!!!!!!!!!!

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Old 07-06-2009, 07:18 PM
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Originally Posted by ls1_sw
02 sensors need to be replaced????? when i got my car tuned the tuner said he eliminated all 4 .02 sensors...............
You need bank 1 sensor 1 and bank 2 sensor 1. IE...the front O2 sensors. Time to fire your tuner and find someone else who knows what they're doing.
Old 07-06-2009, 08:08 PM
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Originally Posted by TXMaro
The only way he could have deleted all 4 o2's is if you're running a true speed density tune. Are you still running a MAF? But it does sound like you have a o2/tune issue.

well that was the plan at first to do a speed density tune but i think we he finished he told me he did a maf tune....so i was like ok haha
Old 07-06-2009, 08:09 PM
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Originally Posted by mr_montellano
What clutch do u have?
spec 2
Old 07-06-2009, 08:11 PM
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thanx for all the info guys ill try out changing the 02s first and then take it to the track and see how it respnds hofully thatas what the problem is
Old 07-06-2009, 08:23 PM
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Just out of curiosity, who tuned it? It would probably be cheaper to take it back to them to see if you really have a problem with your O2's before you actually replace them and waste your money. A lot of cars with LT's will throw O2 heater codes every now and then, it doesnt alway mean they're bad.
Old 07-06-2009, 08:31 PM
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I was just reading over your 1st post and you said it "FINALLY WENT 11.88", is that NA? If so that's not a terrible time for a cam only car with a 1.7-8 60' what was your trap speed? It honestly doesnt sound like there is anything wrong with your car, you just need to practice your launches.
Old 07-06-2009, 10:24 PM
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Originally Posted by NSSANE02
Just out of curiosity, who tuned it? It would probably be cheaper to take it back to them to see if you really have a problem with your O2's before you actually replace them and waste your money. A lot of cars with LT's will throw O2 heater codes every now and then, it doesnt alway mean they're bad.

car was tuned by HENDERSON TECHNOLOGIES in New Braunfels, tx
Old 07-06-2009, 10:27 PM
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Originally Posted by NSSANE02
I was just reading over your 1st post and you said it "FINALLY WENT 11.88", is that NA? If so that's not a terrible time for a cam only car with a 1.7-8 60' what was your trap speed? It honestly doesnt sound like there is anything wrong with your car, you just need to practice your launches.
yes the 11.8 was NA but with the bogg real bad off the line i double clutched it when it was nose diving and my trap speed was 116mph.....
Old 07-07-2009, 01:19 AM
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Originally Posted by ls1_sw
yes the 11.8 was NA but with the bogg real bad off the line i double clutched it when it was nose diving and my trap speed was 116mph.....
Did it look or sound like this? This one is one the limiter and mine still bogged but mine was tuned by chuck when he was at HPE
http://s173.photobucket.com/albums/w...t=DSCI0019.flv
Old 07-08-2009, 12:58 AM
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my car was tuned by cory at hpe and i have no complaints. it even gets 24-26mpg on the highway
Old 07-08-2009, 10:23 PM
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Originally Posted by kdavis
my car was tuned by cory at hpe and i have no complaints. it even gets 24-26mpg on the highway
difference between our cars is i have a big cam
Old 07-10-2009, 08:57 AM
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Originally Posted by ls1_sw
. . . . also i have a service light on i ran the scanner threw it and the code its throwing is (heater performance bank 1 sensor 1 and bank 2 sensor 2) anyone no what that is?? would that cause the bogg???? . .
Heater code is for on start up. On cold starts, the O2 sensors need to be "heated" up to work better. Old age will do this. Replace your front O2 sensors, and this will go a way.

Like it was said earlier, you can't disable all 4 of the O2 sensors on a MAF tune. You can disable the rears, but not the fronts. They work together.

What RMP are you shifting at? Shift points make a difference with a cam that only makes power up top.
Old 07-10-2009, 09:16 AM
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Originally Posted by Tootall
Like it was said earlier, you can't disable all 4 of the O2 sensors on a MAF tune. You can disable the rears, but not the fronts. They work together.
Yes, you can. You can disable all 4 O2's on either tune, it's called open loop and it has nothing to do with speed density.
Old 07-10-2009, 09:45 AM
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Originally Posted by NSSANE02
Yes, you can. You can disable all 4 O2's on either tune, it's called open loop and it has nothing to do with speed density.
never mind . . . read it wrong

if the short/long FT are disabled . . . who cares what's up with the O2s . . . just watch the WB
Old 07-11-2009, 07:54 AM
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Originally Posted by Tootall
Heater code is for on start up. On cold starts, the O2 sensors need to be "heated" up to work better. Old age will do this. Replace your front O2 sensors, and this will go a way.

Like it was said earlier, you can't disable all 4 of the O2 sensors on a MAF tune. You can disable the rears, but not the fronts. They work together.

What RMP are you shifting at? Shift points make a difference with a cam that only makes power up top.

im sshifting at 6500 rev limiter is at 6800 but power band stays even after 6500




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