Tacoma shuts off while driving. Please help.

Normal crank and start.

 

Is it still sluggish? It stalls if you try to give it gas right?

 

Ok just a second ago it almost stalled and caught itself. 30 seconds later stalled. I didnt touch the gas that time.

 

Are those 4 pids the only ones? Is there more screens with more data maybe fuel trims?

 

Is there a gauge i should be looking at on the scanner? Maybe o2 or something?

 

It has a lot of shit to choose from. Ill check

 

Look for fuel trims in a percentage.. a 02 voltage may be useful but trims are better

 

We need trims numbers , e.g. 10%, 20%, -10%...

 

Fluctuate from -1.6 to -0.78

 

The trims look pretty good man.. they're close to zero.. that means that the fuel system has pretty good control of the fuel consumption, that rules out a maf sensor or fuel pump or oxygen senspr..

 

Anything else i can check?

 

Know what I mean.. if the engine was gasping for fuel it would have positive trims like as hi as 20 to 25 percent.. asking for more fuel but not getting it..

 

Keep messing around and keep looking at the data.. it would be nice if it stalled and then you had to hold it in the crank position (crank crank crank..) because that would give some time to see if the rpm signal is always there for e.g. when it won't start.

If it's kinda drivable drive around a little (even if it's sluggish) and see if the trims go way up as the sluggishness is happening..

If the trims are super stable and close zero no matter what then it's back to a loose or poor electrical connection .. in my opinion.. I gotta walk the dog LOL.. I'll check in later..

 

Those are just 02 voltages.. they're normal. That's where the fuel calc stuff gets it's info.. if the trims(fuel calc) are normal then the 02s are doing what they are supposed to do..

 

right before stall the o2 went up to this

 

This time trying to restart was like there was no key inserted.

 

That looks good tho.. 02s are normal, right below where is says 1.028 and the other number to the right are both fuel calc numbers similar to the short and long trims. They are both close to a value of 1.0 (good, fuel calc under control)same thing as when your trims are around zero (plus and minus). Basically it looks like the engine is getting all the fuel it needs ..

Backing up a little bit.. Does this truck have a good battery? Are you jump starting it every time? LOL

Is there a CEL bulb lit on the cluster with the key on? Is the bulb burned out! LOL.. have you scanned it for codes/sure there are no codes?