my 2009 Tacoma shuts down when turning right.

Strange that it now starts and then shuts off. I have to admit, I’d rather try to fix a problem like this, than change brakes.

That said, I hope I never have to deal with something like that on my own vehicle.

 

Yes i agree it looking like it's going to the shop after tomorrow it's been to 2 shops for different things and Toyota dealer

 

You need to get some good dielectric grease, take apart every connection where it flooded up to, clean the contacts, apply dielectric grease and properly seat connections again. Doing this will get rid of any possible corrosion from the flood water and make sure you have solid connections again ... i would go as far as doing grounds and all. There was def water trapped in some of those from this water you were in and sitting in there is no good. especially when there is electric current running though them.

 

Have a very similar problem in my FJ. Getting P0351-0356. Originally it had trouble starting/staying running after pulling into a lot and stopping the car. It would stall out after starting 3-5x before catching and stay idling. Then stall when driving a minute or of driving/under load.

Been running great the last 10k miles since i last serviced most of maintenance. Didn't replace o2 sensors but did the spark plugs, coil packs, and urd ECM for a supercharger. Keep me posted @Bildtacoma I'm starting to poke around the engine bay today

 

The problem of turning right and having the vehicle hesitate or the engine cut out for a second or 3 is actually quite common. My wife had it happen with 2 of her Honda Accords and recently on her 2020 Toyota Highlander. It’s intermittent and neither the Honda or Toyota dealerships can figure it out. What’s happening with your truck may be a little different but nailing down the cause may be difficult or next to impossible.

 

Have you pulled the freeze frame (that shows what was happening at the time the codes are thrown)?

 

i replaced ECM with new one while rplacing reb uilt motor and the shop sent it to toyota to get flashed after that ran great just no tail lights or running lights got that fixed and ac unit circuit boardt now its starts but no run

 

so its been running fine after tune up and replacing coil packs? my coil packs are new factory replacement but i could of shorted them somehow idk

 

i dont know what that is also i have a 20 dollar scanner of Amazon

 

Sorry. I meant that it's been running fine up until this point two weeks ago when the stalling was exhibited. I highly doubt it's the hardware you replaced (but maybe a small chance it's a problem)

 

Freeze frame (unlike the J Geils Band song of the same name), is what all the sensors saw at the moment the code(s) were set. It gives you a deeper dive into what was going on in the engine/trans/etc right at the moment it happened. It can help you diagnose the ACTUAL source of the problem(s). The caveat being you have to understand how everything works TOGETHER to parse out what may have ACTUALLY been going on. It doesn't make a difference all the times, but helps many times.

https://www.mechanic.com.au/news/how-to-make-sense-of-obd-ii-freeze-frame-data1

Not very likely a cheap scanner can do it, especially if it just has a single display with a few lines, but I believe even a cheap OBD dongle like the Panlogic(sp?) - about $14 - along with the Torque app on your phone can pull it.

 

By chance, do you have any aftermarket accessories wired into anything in the dash/cab?

 

No everything is factory 2009

 

Its likely UCON related. I had the same codes and chased my tail for months and it ended up being the UCON

mine would also stall out from time to time and wouldnt want to start or stay running. Got the p0351-0356 codes while this happened

mine was an intermittent problem

 

When it dies, forgive me as I don't remember, does it lose all power briefly, or does it retain power but just won't crank? Or will crank but not start?

 

I believe you're right. Just an assumption that since the URD relies heavily on the OEM sensors. I'm going to replace my o2 sensors before I proceed. They're at 180k and I don't know if they were replaced at all so they probably gave up the holy ghost. Just didn't expect it completely fall flat. My mpg was consistent as usual and I'd trip a o2 code once in a blue moon on acceleration.

 

ok educate me please what is UCON?

 

Just an aftermarket piggyback ecu made by URD