check engine light on

bornwise · #1 (**permalink**) 04-01-2009, 12:40 AM

light on @ 89k any suggestions?

zadeluca · #2 (**permalink**) 04-01-2009, 01:54 AM

search for how to pull codes from the ECU, or go to autozone and they should scan it for free

Altima_Junkie · #3 (**permalink**) 04-01-2009, 02:25 AM

^^+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?

bornwise · #4 (**permalink**) 04-01-2009, 10:19 AM

no drives the same

WarMachine · #5 (**permalink**) 04-01-2009, 03:57 PM

No one can help you without knowing the codes, so if you want help get the codes.

Altima_Junkie · #6 (**permalink**) 04-01-2009, 04:22 PM

Yes, get the codes pulled. It's a 2 minute stop at autozone for free.

**jserrano** · #7 (**permalink**) 04-01-2009, 07:49 PM

Pull codes first, ask questions after.

bornwise · #8 (**permalink**) 04-02-2009, 12:13 AM

po744 is the code

Altima_Junkie · #9 (**permalink**) 04-02-2009, 12:31 AM

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.

**jserrano** · #10 (**permalink**) 04-02-2009, 12:46 AM

Quote:

Originally Posted by bornwise

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.

jammer54751 · #11 (**permalink**) 04-02-2009, 12:52 AM

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!!

Altima_Junkie · #12 (**permalink**) 04-02-2009, 01:11 AM

Another reason I thank the gods I have a 5-speed

bornwise · #13 (**permalink**) 04-03-2009, 12:32 PM

off to tranny shop

bornwise · #14 (**permalink**) 04-04-2009, 06:28 PM

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

Altima_Junkie · #15 (**permalink**) 04-06-2009, 06:50 PM

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..