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#1 Old 04-01-2009, 12:40 AM
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check engine light on

light on @ 89k any suggestions?

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#2 Old 04-01-2009, 01:54 AM
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search for how to pull codes from the ECU, or go to autozone and they should scan it for free

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#3 Old 04-01-2009, 02:25 AM
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^^+1, pull codes first, then it'll be alot easier to norrow down the cuase of the CEL. could be any number of things. Does the car drive any different when the light comes on?

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Originally Posted by eclypse
i see. so you bore the headers, and increase compression through the cams?

quit typing, start hitting the search button. honestly, it works. but hey what do i know, ill be out in the garage boring the headers on my Nova..
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#4 Old 04-01-2009, 10:19 AM
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no drives the same

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#5 Old 04-01-2009, 03:57 PM
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No one can help you without knowing the codes, so if you want help get the codes.

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#6 Old 04-01-2009, 04:22 PM
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Yes, get the codes pulled. It's a 2 minute stop at autozone for free.

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Quote:
Originally Posted by eclypse
i see. so you bore the headers, and increase compression through the cams?

quit typing, start hitting the search button. honestly, it works. but hey what do i know, ill be out in the garage boring the headers on my Nova..
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#7 Old 04-01-2009, 07:49 PM
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Pull codes first, ask questions after.



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#8 Old 04-02-2009, 12:13 AM
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po744 is the code

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#9 Old 04-02-2009, 12:31 AM
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Torque converter clutch circuit has something wrong with it. i'm sure jserrano can shed more light on this though. If it drives fine not sure why it would throw that code.

Adios altima, Tis no more..
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Quote:
Originally Posted by eclypse
i see. so you bore the headers, and increase compression through the cams?

quit typing, start hitting the search button. honestly, it works. but hey what do i know, ill be out in the garage boring the headers on my Nova..
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#10 Old 04-02-2009, 12:46 AM
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Quote:
Originally Posted by bornwise View Post
po744 is the code
That's an automatic transmission code for the torque converter clutch solenoid valve. The CEL and O/D lights should both be ON. This problem has to do with something mechanically bad inside the transmission and is not electrical in nature. The ATCU calculates the gears based on the transmission's revolution sensor and the engine speed. If it doesn't see the gears shifting or a torque lockup then it'll flag a problem.



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Last edited by jserrano; 04-02-2009 at 12:51 AM.
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#11 Old 04-02-2009, 12:52 AM
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And that problem will also make your transmission shift harder. Mine is bad, and let me tell you, going into second is like getting slammed into a brick wall somedays, that bitch is relentless!!

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#12 Old 04-02-2009, 01:11 AM
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Another reason I thank the gods I have a 5-speed

Adios altima, Tis no more..
The new ride:
Tint, 3" TBE w/Megan Racing DP & Magnaflow muffler, TurboXs RFL bov, Injen CAI, Perrin manual boost controller

Quote:
Originally Posted by eclypse
i see. so you bore the headers, and increase compression through the cams?

quit typing, start hitting the search button. honestly, it works. but hey what do i know, ill be out in the garage boring the headers on my Nova..
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#13 Old 04-03-2009, 12:32 PM
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off to tranny shop

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#14 Old 04-04-2009, 06:28 PM
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still need help

tranny shop said it's nothing wrong with it. but service engine is still on (po744) code r.p.m kinda of high for normal driving condition tho

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#15 Old 04-06-2009, 06:50 PM
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haha the check engine light is on with a tranny related code and the shop said there was nothing wrong? I think you need to start going to another shop..

Adios altima, Tis no more..
The new ride:
Tint, 3" TBE w/Megan Racing DP & Magnaflow muffler, TurboXs RFL bov, Injen CAI, Perrin manual boost controller

Quote:
Originally Posted by eclypse
i see. so you bore the headers, and increase compression through the cams?

quit typing, start hitting the search button. honestly, it works. but hey what do i know, ill be out in the garage boring the headers on my Nova..
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