backfiring under hard acceleration

my truck doesn't want to go over 2000 RPMs in any gear. when I give it enough gas my truck surges and jumps to 3000 RPMs and starts backfiring but I see no acceleration. Ive replaced all my spark plugs and ive tried sea foam in the intake and the gas. what should I try

 

Try cleaning the maf sensor.

 

ive tried that ass well, any other ideas

 

New maf, coils, ect

could be tired and worn transmission

put a code reader on it autozone can do it.

 

ill look into that. that would make sense accept that I have had a huge power loss. top speed is 70 and I cant accelerate up a hill

 

Check your check engine light codes if you have any. Parts store will do for free. May just be an ignition coil going out. Sometimes it takes quite a while to throw a code for misfire though.

 

Hook up a diag code reader. Then come back to us. The symptoms mean nothing specific, and we cannot provide decent suggestions without knowing if there's any codes. I'm expecting something related to fuel or spark will be found, possibly EVAP/emissions, it just hasn't thrown a money light yet.

 

Fuel pressure?

 

Codes codes codes. Gotta have codes. Sounds like it could be a clogged cat too.

 

im throwing 4 codes. O2 heater circuit bank 2 sensor 1 and 2. intake air temperature sensor 1. mass air flow circuit

 

Sounds like a bad MAF sensor to me.

 

Unplug your maf sensor and go for a drive. If it does fine, clean your maf and plug it back in. If it acts up again, replace it.

 

Check codes (engine and trans), clear codes.
Disconnect battery and allow reset if all systems.
Drive.
What drivability issues and faults come back immediately?

 

I'm thinking I'd go with possibility of bad MAF. If I had to choose between MAF and CAT to replace, I'd replace MAF 1st. Costs less. DO NOT buy it on scAmazon or Fleabay. Buy OEM if possible, else buy from a known retailer (online) like Summit Racing or Rock Auto, or a local auto parts store.

 

Hitachi store has good reviews on amazom direct soures even they grind of toyota from the stamping been in searching hard all this info and its legit from what i can see reviews look good.