Which trans do I have?

[Turbotogo]

1998 900 SE turbo, where do I find the transmission type for this vechicle. I know " Asian" makes one for it. I got a P0741 code on it today and to change one manufactures filter you have to pull the tranny and disasemble it to change the filter, Will be checking electrical contacts and lock-up solenoid also.

[Turbotogo]

Found the data plate. 50-40LE Aisin trans. have to pull tranny to perform any service work. Are there upgrades to the engine and trans that are worth doing after I pull these out? Anybody out there built up this engine/trans yet?

[Burnsside42]

P0741

Torque Converter Clutch Circuit. Performance or Stuck Off.


Fault symptoms

CHECK GEARBOX warning lamp on.

Lock-up function disconnected.
Conditions

The difference between engine speed and the transmission's input shaft speed is greater than 100 rpm for 10 seconds.

Diagnosis will not be performed if:

•	The engine is idling or running at more than 4000 rpm.

•	Less than 5 seconds has elapsed since shifting occurred.

•	DTC 1817 has been generated.

Diagnostic procedure

1 Check the fault symptom.


Perform diagnostics following “ Test drive schedule" and fill in “ Diagnostics and test record". Note any symptoms.
Are there any fault symptoms?

Yes

Continue fault diagnosis of symptom “ Mechanic and hydraulic faults". Then continue with step 2, final check.

no

Make sure the input speed sensor is correctly fitted on the gearbox. Continue with step 2, final check.

2 Final check

-	Clear all diagnostic trouble codes in the system.

-	Perform a driving cycle:

•

Drive the car at varying loads and engine speeds for 5 minutes.

-	Evaluate the driving cycle:

•

Make sure the trouble code has not recurred.

Has the trouble code recurred?

Yes

Continue with “Diagnostic procedure before replacing control module"

no

The steps taken to rectify the fault were correct.






Could be a bad Trans Control Module - follow the information above.

[Turbotogo]

Where did this sheet come from? Step one has some troubleshooting things in it that aren't well explained.

[Tweek's Turbos]

Where did this sheet come from? Step one has some troubleshooting things in it that aren't well explained.

Probably the saab workshop thingy.