2000 Mitsubishi Galant Disconnected battery = engine stalli

2000 MITSUBISHI GALANT
122,000 MILES • 4 CYL • FWD • AUTOMATIC
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A.RINGHISER
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  • 30 POSTS
Hi,

I recently was doing some work with my 2000 Mitsubishi Galant and its cigarette lighters. I had to remove the center console to access them, so I disconnected the negative terminal on the battery as indicated by the Chliton manual. When I was finished tightening up the sockets, I reassembled the car and connected the battery. As I drove the car for about 5 minutes, I stopped the car and put it into reverse when the engine died. It starts up as normal again, but anytime I use reverse or turn the air conditioning on-off-on-off it typically kills the engine. When its sitting at idle, the engine kinda "pulsates" and varies its idle speed anywhere from 400-800 rpms, and sometimes makes shuddering feelings when stopped in gear or parked. The engine sounds normal to me, but I am concerned because my Mitsubishi has never had any problems at all until now. I would love to hear what is wrong with the car so I can get it fixed and hopefully enjoy many thousands more carefree miles.
Jul 11, 2010 at 12:17 AM
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RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
Its probably the computer going thru its relearning process.

After disconnecting battery or replacing ECM, drive vehicle to enable ECM to relearn driveability. Inform your customer that they may experience driveability different from what they are accustomed to until ECM completes relearn function.
Jul 11, 2010 at 2:01 AM