have you checked other basics such as other parts of the ignition (distributor cap and rotor, ignition coil), air filter, fuel filter (although this is about impossible to get to without removing the starter).
Mine does the exact same thing with the pedal positions. On mine im leaning toward the mass air sensor. Its way out of range on ohms. And it keeps getting worse, trying to find a junkyard mass air sensor since new ones are so expensive.hey thanks guys. I appreciate the fast reply. I havent checked out the rotor and cap just becasue the guy said he repalced them 6 months ago too. the whole engine was replaced. the air filter looks fine, and i've heard that you have to take the starter out to get at the fuel filter, which i'm not looking forward to.
And I was actually thinking TPS too. There is a spot on the accelerater that I hit (right near the floor) that the trucks kicks in at. If i move it back even the slightest it bogs down again. this sounds like TPS right?
Nope. From starting, espeicially on a hill, its like theres no power. @ gear is really noticeable too. But I can go from the top of the pedal right to the fllor, and its pretty much on the floor is wehre it kicks in. The best way to describe it is pretty much no power at all. It doesnt stumble or shake or anything, but like I'm driving the truck with the brakes on or something (breaks work great). On my way home tonight It came right out of it for a bit and worked great. Couple minutes later same thing.are you sure your just not letting off of the gas? Or is it like half way through the throttle movement...like you give it half throttle and it bogs down then you give it 1/4 throttle and it goes faster?
Yeah they want a lot for those. I hope its not the Mass Air sensor. toyota's are hard to come by in the junkyards around here. thanks!Mine does the exact same thing with the pedal positions. On mine im leaning toward the mass air sensor. Its way out of range on ohms. And it keeps getting worse, trying to find a junkyard mass air sensor since new ones are so expensive.
Closed loop is when the truck runs on data that it recieves from the PCM.
Open loop is when it runs on a known good set of parameters.
These air flow meters are also plug and play, maybe you could find one of these Mass Air flows instead?
Just took the truck to the guy I bought it from. Took it for a drive. came back adjusted the ignition timing a little bit, and took it for another drive. No problems. I drove home here working fine. I'll keep ya posted to see if this is just a temporary fix, but so far so good
Good example of why NOT to use a K&N...stock is just fine!This might be a dumb suggestion but I had some hesitation on my engine and when I checked the K&N air filter my cousin have used from maybe 2-3 years ago and I don't know if he ever did the maintenance on it but when I replaced it with a FRAM from Whally's. Oh boy. My engine earlier just run so much smoother. I am still amazed.