Question about 1993 Saturn SL2

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Need to relearn rebuilt e.c.m. ? - 1993 Saturn SL2

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  • yadayada
    yadayada May 11, 2010

    relearn only only applies to the idle of the engine.



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  • Master
  • 7,353 Answers

Just drive it.

Posted on Feb 05, 2010


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1 Answer

Replaced motor with new one and now computer wont work nor will car start,checked all wires ?

Make sure ALL grounds are connected and clean. Was motor from same year donor car, or new(used), or new(rebuilt)? Did you have to transfer any/all sensors from old engine? When you do get it started, It will run rough until the computer goes through a relearn period, don't worry. Good luck.

Oct 15, 2015 | 2004 Toyota Camry

2 Answers

Pcm relearn

what large topic. and wow, not even a FUNCTION STATED
just the WHOLE PCM,.
no symptoms, no issues, just that.
not sure what engine you have there, and matters !!!
most PCM's relearn EVERYTHING after you pull the battery
connections or the PCM memory fuse. IOD fuse.

dont pull the battery, or lose radio passcodes. (bricks IT or NAV bricked, if opted)
lots of learn, paths.
fuel trim? ( does o automatically as does spark)
spark advance, and knock data?
transmissions all have learn mode, and do so automatically when reset.
now the last one, some cars, the TB (throttle ) body must be relearned, some are auto learn others not.
aka: throttle by wire ,relearn.
did you replace something (my other shoe drops......)

did you first scan the PCM and see if there are issues.
if not, why not, why work blind>?

there are other learns
seat position (guessing BCM)_
pedal position relearn, omg.
Sentry Key "Customer Learn" Mode
transmission quick learn or drive learn (read the FSM yet?)
chapter 8e-290 + all those learn steps for trans, takes no tools.
RTM? yet?

instrument cluster learn mode? Odometer?
At the garage door opener receiver (motor-head unit) in the garage, locate the 9learn9 or 9smart9 button.
sun roof relearn?

TPS learn(excepted)
"Is the voltage reading within the listed specification when the
jumper wire is installed?
Yes >> Replace the Throttle Body Assembly. Disconnect the Battery
when replacing the Throttle Body Assembly. After
installation is complete, use a scan tool and select the
ETC RELEARN function.

No >> Go To 4
NOTE: Remove the jumper wire before continuing."

ill stop here, (i scanned the whole FSM for you on LEARN)
these newer cars the PCm .,BCM and other modules work on cooperative modes. Ill be the last to ever say , where learn data i stored, that i below my paygrade (retired and zero) LOL !

why not post something more focused.
I'm considering a new TB.
what do I need to know.?

Jul 05, 2014 | 2006 Jeep Commander

1 Answer

Is my rebuilt transmission already slipping?

If you had the transmission built at a reputable shop, take it back to them and point out the issue. Most shops will warranty a rebuild for up to a year and/or 15,000 miles. It's possible they didn't run the car through a 'relearn' cycle so that the transmission can sort out shift points and speeds based on engine rpm, load, vehicle speed, etc. Ask about that, too, when you bring it back.

Jul 12, 2017 | Chrysler Voyager Cars & Trucks

1 Answer

Why would my 2003 focus run good until I had my alternator rebuilt. Now it acts like its not getting gas but checked and its getting gas up to fuel rail.

Some vehicles run poorly after the battery has been disconnected, and will take a few start-restart cycles for the ECU to relearn the idle and fuel trims. Give it a couple of days and see if it improves.
It is also possible that the rebuilt alternator is faulty. Low voltage will cause problems with the EFI system.

May 31, 2014 | Cars & Trucks

1 Answer

Transmission leak

Sounds like you've got a valve hanging or you need Togo threw a relearn procedure. It should clear up in a few days. As for the leak take it back to who ever fixed it.

Nov 14, 2013 | 2006 Hummer H3

1 Answer

I have put a ford refurbished tranny in and rebuilt the shifter assembly twice - 2004 mountaineer. Why am I still getting hesitation going into gear? intermittant problem, most going from park to reverse.

The transmission many to relearn shift points which can take several miles of driving is some cases. drive the car for a while, the hesitation in shifting continues have your dealer flash the ecu

Dec 15, 2010 | 2004 Mercury Mountaineer

1 Answer

1999 dodge durango with newly rebuilt transmission. now it miss fires and shows up codes p0300, p0306, p0307

was the computer relearned on a chrysler drb scanner at the manufacturer if not thats your problem.the relearn procedure cost 80 bucks

Aug 31, 2010 | 1999 Dodge Durango

1 Answer

Rebuilt motor seems to not be connections somewhere checked battery is there A sensor of some sort that we could check?

Battery to starter,and ground to the engine block.You may have to relearn the key,turn the key on for ten minutes,and then off,and right back on,do this three times,and it should relearn the key,if this is the problem,does it have head lights and radio,wipers?

Jun 20, 2010 | 1996 Chevrolet Camaro

1 Answer

My car is high reved at 2000 rpm wont go down

Have you tried just disconnecting the battery for a half an hour or so? Your ECU probably just needs to forget what it has learned and relearn it.

Sep 30, 2009 | 2003 Hyundai Tiburon

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