Battery change engine stalls

PDUTTON

MEMBER
2006 SUZUKI

Engine Performance problem 6 cyl Two Wheel Drive Automatic 103000 miles

Grand Vitara - Luxury

After changing my battery, when I try to put my car in gear it wants to die. Did a OBD scan and it showed that I had a P0102 code which was a Mass Air Flow sensor low voltage issue. I purchased a brand new sensor cleared the code and it still wants to die when putting it into drive. Yet no other codes are generated. I have never had a check engine light come on. It also only does this when the car is warmed up, doesn't do this when the vehicle has been sitting over night. I read somewhere that when the battery is disconnected on a Suzuki that the computer loses all its settings and has to relearn them all again. I read it could take up to 40 key cycles. Is there a faster way to do this? Do you think I had a bad sensor or could it all be from the computer trying to do a relearn?

3 Replies

RASMATAZ

MECHANIC
75,992 POSTS

When the battery is disconnected on a Suzuki that the computer loses all its settings and has to relearn them all again.

Here is a guide that will help

https://www.2carpros.com/articles/engine-stalls-idles-too-high-low-after-dead-or-replaced-battery

When the battery is disconnected the computer loses it memory programs and must undergo a relearning process. The idle relearning below is for Verona not for your modle couldn't come up with yours in Alldata/Mit1 auto references try doing it and see what happens

Idle Learn Procedure

Whenever the throttle body and/or Engine Control Module (ECM) are replaced, the following idle learn procedure must be performed:

Turn the ignition ON.
Turn the ignition OFF for 10 seconds
Turn the ignition ON for 5 seconds
Turn the ignition OFF for 10 seconds
Start the engine in park/neutral.
Allow the engine to run until the engine coolant is above 185 °F (85 °C) .
Turn the A/C ON.
If the vehicle is equipped with an automatic transaxle, apply the parking brake. While pressing the brake pedal, place the transaxle in D (drive).
Turn the A/C OFF.
If the vehicle is equipped with an automatic transaxle, apply the parking brake. While pressing the brake pedal, place the transaxle in P (Park).
Turn the ignition OFF. The idle learn procedure is complete.

Please let me know if this works