I have a 91 toyota pickup DLX that is having a dying issue when hot and under load, just after restart.
Important things to know, it is an 150k mile, 22re 2.4L automatic, ac, and power steering truck. The truck runs really smooth while driving and accelerates great. The problem comes in when it has ran for an hour+ and is completely up to operating temp. I'll stop at a store and kill it. And after as little as 5 minutes, I start it up again and it has a noticeable miss, but revs smooth. And then when I put it in gear and hold the brake it misses worse and dies. It seems the longer it runs the worse the problem gets. Also if it is started with the ac on it will miss and die. It's like if it has any load on it while it's hot it will die. However if you crank the truck from dead cold and run it through out the day it will run and never skip a beat, unless you kill the engine for any length of time.
Now on to me kinda spit balling, could a bad torque converter cause some of this? I'm going to be replacing the coil soon as well and the cap and rotor. I do know that my old fj40 was having some similar symptoms and a coil cap and wires fixed it for the most part, but it has a carb not fuel injection. I have also seen where the cold start injector can mask bad injectors while it's cold and this could be the case but when I ohmed the injectors they were fine electrically and didn't seem clogged from what I could tell looking at them.
When I did the timing chain I found that the timing links were almost 7 to 10 links off and I could rotate the crank almost 12-15 degrees, before the cam even started to move! I have no idea how this truck was even able to run with it like that. We drove it unknowingly like 300+ miles home from where we bought it. Any help is appreciated!
Work done,
1 denso spark plugs
2 fuel filter
3 alternator
4 seals on injectors
5 oem tps and professionally adjusted at a shop
6 oem timing chain kit and metal guides
7 oem 02 sensor
8 170° thermostat
9 new belts and powersteering tensioner
10 new radiator
11 ohmed the plug wires and checked out good
12 new o rings on the idle screw and distributor
13 new fan clutch
14 new water pump
15 tested all injector plugs with noid light
16 timing set to 5° with timing light
17 vavle adjustment(hot) and to service manual specifications
18 vavle cover gasket and bolt seals
19 ohmed all injectors and they are within range
20 I believe the transmission has had rebuild recently and the fluid is very new looking. Or atleast serviced recently.
21 did a complete emissions delete.
23 new ecm temp sensor
24 compression test done all cylinders are 125psi +/- 5psi
Important things to know, it is an 150k mile, 22re 2.4L automatic, ac, and power steering truck. The truck runs really smooth while driving and accelerates great. The problem comes in when it has ran for an hour+ and is completely up to operating temp. I'll stop at a store and kill it. And after as little as 5 minutes, I start it up again and it has a noticeable miss, but revs smooth. And then when I put it in gear and hold the brake it misses worse and dies. It seems the longer it runs the worse the problem gets. Also if it is started with the ac on it will miss and die. It's like if it has any load on it while it's hot it will die. However if you crank the truck from dead cold and run it through out the day it will run and never skip a beat, unless you kill the engine for any length of time.
Now on to me kinda spit balling, could a bad torque converter cause some of this? I'm going to be replacing the coil soon as well and the cap and rotor. I do know that my old fj40 was having some similar symptoms and a coil cap and wires fixed it for the most part, but it has a carb not fuel injection. I have also seen where the cold start injector can mask bad injectors while it's cold and this could be the case but when I ohmed the injectors they were fine electrically and didn't seem clogged from what I could tell looking at them.
When I did the timing chain I found that the timing links were almost 7 to 10 links off and I could rotate the crank almost 12-15 degrees, before the cam even started to move! I have no idea how this truck was even able to run with it like that. We drove it unknowingly like 300+ miles home from where we bought it. Any help is appreciated!
Work done,
1 denso spark plugs
2 fuel filter
3 alternator
4 seals on injectors
5 oem tps and professionally adjusted at a shop
6 oem timing chain kit and metal guides
7 oem 02 sensor
8 170° thermostat
9 new belts and powersteering tensioner
10 new radiator
11 ohmed the plug wires and checked out good
12 new o rings on the idle screw and distributor
13 new fan clutch
14 new water pump
15 tested all injector plugs with noid light
16 timing set to 5° with timing light
17 vavle adjustment(hot) and to service manual specifications
18 vavle cover gasket and bolt seals
19 ohmed all injectors and they are within range
20 I believe the transmission has had rebuild recently and the fluid is very new looking. Or atleast serviced recently.
21 did a complete emissions delete.
23 new ecm temp sensor
24 compression test done all cylinders are 125psi +/- 5psi
Somebody over on yotatech is probably looking for all that stuff. 
