Car Randomly Shuts off, but then restarts no problem, more

[corollaman]

Just had some recent maintenance today:

-spark plugs, cap, and rotor
-new glass mat battery
-new fuel filter
-replaced positive and negative terminal
-negative cable replaced
-replaced air filter
-reconfigure power and ground distribution, added new dedicated battery cable
-synthetic oil change
-LSD oil change


Drove it from the performance shop with no problems, car sat there for 6 hours,
Drove it after that and in 3rd gear, it died. Turned the car back on, drove fine, 2nd gear car died, turned on again, 1st gear it died, then turned it back on and drove back to Parking lot no problem.

Any ideas on what the issue might be?

Update: Car was shutting off again. Did not drive it for a few days, and then started it up and it died. Then, as the car warmed and while I was driving, the car was shutting off, but then restarting, like a flicker shutoff/start up, really weird. After the car was fully driven for about 30 minutes, drove no problem, and no shutting off issues. I have videos and they will be posted. Please help me with this....

Noob question, but could it be something like the fuel pump going out? Also with the videos, you will have to watch the whole thing, or at least till you see the issue occurring several times.

http://www.youtube.com/watch?v=YlkRQ4zKx94

http://www.youtube.com/watch?v=C02wjXd3Rv8

[luisae86]

to me seems it might be something electrical cuz if it was fuel issue car wouldnt turn on period at least thats my thought may have a loose wire some place in ur harness

[dr.occa]

It's been suggested that a bad EFI relay (silver cylindrical 4 post) in the engine bay fuse box maybe the culprit.

[corollaman]

Where can I find this relay?

[joe81]

reset the tps sensor and clean out the throttle body.
if the tps sensor is not set correct its not giving an accurate reading to the ecu to say how much the throttle is open thus sending to much or to little fuel whichever the position

[corollaman]

Where would the TPS sensor be? Since I have a real Levin, i do not have a mass air flow sensor, or anything like that, so where would the TPS sensor be?

[dr.occa]

Where would the TPS sensor be? Since I have a real Levin, i do not have a mass air flow sensor, or anything like that, so where would the TPS sensor be?

At the throttle body.

Here:

[corollaman]

Ended up being: ECU Relays found open circuit relay bad, Diagnosed stalling found main coil wire arcing to ground

[dr.occa]

Ended up being: ECU Relays found open circuit relay bad, Diagnosed stalling found main coil wire arcing to ground

Good detective work.