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).
92 Toyota Pickup bogs down
Hey,
I just bought a 92 toyota pickup a couple of weeks ago. Love the truck but its giving me troubles. 22RE, manual.
Ill be driving along fine and all of a sudden theres no power at all. Doesnt matter what gear, starting or highway, but if I am starting from a stop its most noticable as you have to have the pedal right to the floor before it will do anything. then it will just kick out of it and be fine. the last couple of days it hasnt really been kicking out, and its been doing it more than not now. The guy I bought the truck from said it was the coolant sensor he thought. I repalced that, and nothing. I repalced the plugs too. Wires look brand new, buddy said he replaced them 6 months ago. Oil's fine.
I don't want to start throwing a bunch of money at it. I saw a couple threads with similar problems, but none seem to go anywhere. Oh, and there are no codes showing up. Any help would be awesome! thanks.
I just bought a 92 toyota pickup a couple of weeks ago. Love the truck but its giving me troubles. 22RE, manual.
Ill be driving along fine and all of a sudden theres no power at all. Doesnt matter what gear, starting or highway, but if I am starting from a stop its most noticable as you have to have the pedal right to the floor before it will do anything. then it will just kick out of it and be fine. the last couple of days it hasnt really been kicking out, and its been doing it more than not now. The guy I bought the truck from said it was the coolant sensor he thought. I repalced that, and nothing. I repalced the plugs too. Wires look brand new, buddy said he replaced them 6 months ago. Oil's fine.
I don't want to start throwing a bunch of money at it. I saw a couple threads with similar problems, but none seem to go anywhere. Oh, and there are no codes showing up. Any help would be awesome! thanks.
1 - 20 of 46 Posts
I would check the Throttle Position Sensor. I have been hunting down a problem which sounds a bit like yours. I checked my TPS today and it was out of specs on the ohm meter. I tried adjusting it but to no avail. I put a new one in and all seems to be fine so far. Thats what I would suggest.
Good Luck
Good Luck
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?
Thanks.
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?
Thanks.
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?
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?
Thanks.
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.
I think the toyota ECU goes into closed loop operation, meaning its not using the sensors, its going on a preprogram in the ecu for the operating ranges. I think it does this when the engine is cold and when the your running full throttle. There is a full throttle contact in the TPS that tells the ecu to go closed loop. So, a problem that goes away when the pedal closes the full throttle contact, could be a problem in any of the sensors. Just need to get a good shop manuel and an ohm meter and test each sensor till you find one out of range.
From toyota the mass air sensors are $750 ouch.
From toyota the mass air sensors are $750 ouch.
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?
http://www.yotatech.com/f116/let-s-t...sida-s-137629/
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?
http://www.yotatech.com/f116/let-s-t...sida-s-137629/
also try bleeding your coolant system. Another member had somewhat similar problems caused by air bubbles in the cooling system.
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?
http://www.yotatech.com/f116/let-s-t...sida-s-137629/
Thanks, I just found an 82 supra afm at the local junkyard for $45.
hey guys
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
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
hey guys
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
So, you think this problem is caused by a timming issue?
Seems like a pretty drastic problem just for the timing being a little out of whack. But hey you never know...
Yeah, problem is back, and seems worse then before.. defintite;y working like crap. going to take it back to the guy as soon as I can. I will keep you updated. I was so excited when I thought it was fixed.
have you tried adjusting your TPS or bleeding your cooling system yet?
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.
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.
Hey, BIGWHEELS figure anything out yet? I thought my problem was the AFM, but I just changed it out with a junkyard unit and it made no difference with the problem. Im all out of ideas. Keep us posted if you figure anything out.
thanks-jon.
thanks-jon.
1 - 20 of 46 Posts
- This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Toyota Nation Forum
ToyotaNation Forum is a community dedicated to all Toyota models. Come discuss the Camry, Tacoma, Highlander, 4Runner, Rav4 and more!
Full Forum Listing
Top Contributors this Month
View All
sdspeed
436 Replies
1990Toyota
427 Replies
93celicaconv
199 Replies
