ok so ive noticed that when starting my truck the first time u crank it over it pops off for a few seconds then dies....ok if u do not turn the key all the way back to off it will not pop off it just cranks over...if u turn the key all the way off then try it, it will pop off for a few seconds then dies. its like its resetting or somthing....any ideas would be appreciated thank you

 

mine is doing the "exact" same thing. i have an 88 yota 4x4 v6 3.0 .... did you figure the problem out at all?

 

We found out it was a bad ECU..found one at a junkyard for like 40 shipd to the door...it fixed that problem for me...good luck and i hope that helps...

 

thanks...so to switch the ecu do you have to do anything special or can you just unplug the old and plug in the new and go?

 

http://www.car-part.com/ i think this is were i got my used ecu from....make sure your numbers match on the ecu's....thats it man.... may want to unplug the negitive battary cable b4 u put ur new one in......

 

let me know if that works...

 

alright will do. thanks a lot!

 

No problem man

 

I have a similar problem, mine would start run for a few minutes then die, then, it would start and then run for say 6 seconds at idle then stumble die, or if you pinned the gas half the time at higher revs. Then sometimes after flogging the starter like a rented mule, she would catch and behave until I let her sit over night or for a longer period again.
Any of this similar to your experience?