Devbot
New member
Sorry if this is unrelated and/or reviving an old thread
I have a 2001 SR5 4Runner 2WD 3.4L V6 and just last week while I was driving on the highway the battery light came on and next thing you know the engine died. All the electronics were on just the motor died. Tried restarting and jumping but it will crank and crank but no turn over. Prior to it dying I was having issues of the gas pedal feeling like it would give out and only accelerate it it was pressed all the way, along with small shakes when accelerating over 1.5k ( 50+ mph)
Had it towed back home to work on and diagnose the code that was being thrown, it was the 1st position o2 sensor soI changed out both the 1st and 2nd one and still no start.
The fuel pump is pumping (changed last month), fuel filter is clear (also changed last month), fuel pump regulator is pumping as well (just changed), MAF is clean (also just changed), spark plugs&wires&coil packs are also brand new. Throwing no codes and still wont start even with starting fluid.
At my wits end with the car and any suggestion would be greatly appreciated
I'm assuming the e-brake light came on too? Brake + batt = alternator problems. I think just the battery light means the alt is undercharging? Could be wrong
I'm willing to bet your O2 codes were pending but have yet to trip the CEL; there's zero reason a bad O2 sensor would trigger a battery light or suddenly shut down the car.