My 1999 Protege got about a foot and a half of water in it during a flood. It still runs great but it will not maintain a constant speed, plus the battery is getting drained while it is parked. The "c

Asked by Cadenza_498 Jan 19, 2017 at 03:24 PM about the Mazda Protege5

Question type: Maintenance & Repair

After getting about 18" of water in it during a flood, our "99 Protege won't
maintain a constant speed. It starts slowing down as soon as I reach the
desired speed. The check engine light is on but it won't throw a code. The
alternator light is also on but the alternator is working perfectly. Plus, the
battery is getting drained while it is parked. Any help would be greatly
appreciated.

1 Answer

F_O_R answered 7 years ago

The ECU was probably damaged in the flood along with a lot of other things. You probably should pull all the ECU plugs to dry out the connections. You may need to replace it or get it re-flashed. I am not sure your car is worth fixing though and it will probably nickel and dime you to death.

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