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true duel exhaust question

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Old Apr 27, 2010 | 02:14 PM
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Default true duel exhaust question

I got some pipes from mid America to make my 84 have true duellies, no cats and i have flowmaster mufflers. Had them installed today and my speedometers stuck at 0 and check engine lights on. Can anyone help me out. My mechanics a slacker? hahaha
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Old Apr 27, 2010 | 03:36 PM
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Originally Posted by ETRBUJ1984
I got some pipes from mid America to make my 84 have true duellies, no cats and i have flowmaster mufflers. Had them installed today and my speedometers stuck at 0 and check engine lights on. Can anyone help me out. My mechanics a slacker? hahaha
He is not only a slacker but he is a crook. It is highly illegal to remove the cats. Sounds like to you need to go back to him.
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Old Apr 27, 2010 | 04:26 PM
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Could be that he screwed the speedo connection on the tranny or forgot to reinstall it.

For the CEL, what code is there? If he didn't install a O2 sensor or forgot to connect the wire, it will set a code 13.

Either way, it sounds like your "mechanic" isn't so much a slacker as he is an incompetent.
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Old Apr 27, 2010 | 04:46 PM
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Originally Posted by c4cruiser
Could be that he screwed the speedo connection on the tranny or forgot to reinstall it.

For the CEL, what code is there? If he didn't install a O2 sensor or forgot to connect the wire, it will set a code 13.

Either way, it sounds like your "mechanic" isn't so much a slacker as he is an incompetent.
Plug in the speedo connection in the tailshaft, that'll get the speedo working again. Ditto with the 02 sensor.
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Old Apr 27, 2010 | 04:47 PM
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I don't have any diagnostics tools so I cant read codes myself.... and i'm not quite sure about an "84" with no catalytic converter being illegal but damn does it sound and feel much better! Has to be something to do with that speed sensor on the tranny.... huh...thx!
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Old Apr 27, 2010 | 05:15 PM
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Originally Posted by ETRBUJ1984
I don't have any diagnostics tools so I cant read codes myself....
The only diagnostic tool you need is a paper clip.

http://wiki.answers.com/Q/How_do_you...p_for_the_obd1
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Old Apr 27, 2010 | 05:49 PM
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From: Clifton Park, NY ............Clearwater, FL ... 85 Original Owner
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Originally Posted by ETRBUJ1984
I got some pipes from mid America to make my 84 have true duellies, no cats and i have flowmaster mufflers. Had them installed today and my speedometers stuck at 0 and check engine lights on. Can anyone help me out. My mechanics a slacker? hahaha
you think that's going to pass inspection in NY?
Not without a cat it's not.
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Old Apr 27, 2010 | 06:13 PM
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Originally Posted by Cruisinfanatic
you think that's going to pass inspection in NY?
Not without a cat it's not.
its over 25 yo...safety inspection only
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Old Apr 27, 2010 | 07:35 PM
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Originally Posted by browningejm
its over 25 yo...safety inspection only
but still a fed offense to remove any smog equip.

no speedo IS a traffic infraction in ny if originally equipped with one.

IIRC the speedo/VSS signal 'not present' will kick on the MIL.
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Old Apr 27, 2010 | 09:23 PM
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Originally Posted by Cruisinfanatic
you think that's going to pass inspection in NY?
Not without a cat it's not.
In GF is most certainly will. That's just a few mins from me and I haven't had a cat in 3 years. Upstate inspections are different from downstate.
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Old Apr 28, 2010 | 10:14 AM
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That 96 might need cats but anything before a 94 can be equipped even some stock cars with no cats! And most guys up here don't give us $hits for are old cars not having a cat so I'm hoping he can figure out the problem today..... thanks for all the advice!

Last edited by ETRBUJ1984; Apr 28, 2010 at 10:20 AM.
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Old Apr 28, 2010 | 11:08 AM
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I would definately check the O2 sensors as suggested to take care of that check engine light.

As for the CATS... screw em'. I've got true dual straight pipes on my vette going back to Borlas, no cats, no smog pump anymore either and I love it!

Good luck man.
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Old Apr 28, 2010 | 02:03 PM
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It was just the speed sensor by the tranny that had tripped the check engine light as well. Everything's working prime now and it still sounds fantastic!
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Old Apr 29, 2010 | 08:40 AM
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Glad to hear... enjoy it!
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