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Need a tune for longtubes?

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Old 09-25-2008, 10:55 AM
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Default Need a tune for longtubes?

Put em on last night, but now truck is weak, and pops (some from the O/R Y), but LOUD pops.
If I were to go have the cats I have sitting here put on, and put the rear O2's back in, it will cure it, right?

Im used to my Dodge, when I put headers on it, it woke it up some, and I had no problems...

Help? Its almost at the point of the driveability is horrible, and I dont want to take it on the road.

RIght now is Pacesetter LTs, an offroad Y, and a flowmaster 40, dumped before the axle.
Old 09-25-2008, 11:02 AM
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Rear 02s only let the PCM know that the cats are working right..
Get a tune and be done with it..
Old 09-25-2008, 11:16 AM
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most tunes offer free updates anyway. look up blackbear performance
Old 09-25-2008, 11:21 AM
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Its my DD, I kinda need a NOW fix.

Tuning can be taken care of right down the road at TSP, I just need to see which one will fix it for cheaper.
Old 09-25-2008, 11:33 AM
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And TSP is booked solid. great.
Im gonna take em back off I guess.
Old 09-25-2008, 11:40 AM
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Did you crack a spark plug when you installed the headers?
Old 09-25-2008, 11:47 AM
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Originally Posted by BlackGMC
Did you crack a spark plug when you installed the headers?
Thats what i had starting thinking..
Just cause you put LTs on, its still goin to run decent, shouldnt do what your explaining.
Old 09-25-2008, 11:50 AM
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putting your cats back in your ORY isnt going to stop the popping. you need to get your re-tune and see if that fixes it.
Old 09-25-2008, 12:14 PM
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Pull all the spark plugs and check the porcelin, also make sure all the wires are pushed in FULLY on the plug and on the coil.

I ran my longtubes untuned for about a week, and i never experianced any loud popping or any driveability issues at all. I did pick up a noticeable amount of power after the tune though
Old 09-25-2008, 01:01 PM
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I pulled all of them but the front two.
I can re-check them, and hopefully that fixes the problem.


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