Pls offer some guidance c 1259 1310 . Car starts and shuts off in maybe less than a minute. wont run even in maintenance mode .heavy shudder then shuts off

 

c1259 1310 codes present. car starts and shut off under a minute later wont keep up. hard shudder and loud noise while engine is running.. also smell of fuel in engine room .. 80k

 

Possibly your Throttle body needs cleaning. I had something similar a few months ago and I took the throttle body out and cleaned it thoroughly....The codes are weird

 

what oil do you use?

 

10/30 engine i assume

 

should be 5w30. try to change the oil first since it can cause the errors in VVTi work

 

car has been running 10/30 since i owned it 3 years.. Doubt oil is the issue the issue feels like a fail safe or limp mode issue. need an in depth meaning of the codes cant find any real info online.. at one point car shut down because of the excessive shuddering. it threw a rod and piston through the block so i replaced engine with a used one and the similar shudder and start and then shut off same codes .. so obviously issue is not the engine per se

 

https://www.autocodes.com/c1259_lexus.html
https://www.autocodes.com/p1310_lexus.html

 

does anyone have schematic diagram ?

 

Oil viscosity has nothing to do with your problem. Do not chase that thought.

 

Maybe not for the errors listed above, but the wrong oil can cause the Check engine error (it happened with my Toyota several years ago).

 

Have the spark plugs ever been changed? Getting to the rear bank can be challenging. Maybe a high mileage plug causes a misfire? Just spitballing here...

 

yes sir thanks for the comment.. changed plugs,cleaned injectors ,checked coil packs . substituted cam and crank sensors,pressure regulator, air flow meter,throttle body from another working vehicle.

 

My wild guess is your hybrid battery is going south. Or, ECM went bad, what is rather new for Lexi. They have pretty bulletproof ECMs.
Bite the bullet and have it professionally scanned by Techstream. Otherwise, you'll be chasing ghosts and tossing money at unnecessary, guesstimate repairs.
Diagnose cause>.correct cause.

 

did the prolong reconditioning battery is fine