22re limp mode

[theking11863]

Hey guys, been awhile since I’ve posted. Recently I acquired a 91 DLX Pickup 22re 5speed and the thing has been running great for the most part up until last weak. I noticed that once its been running for a little while the thing just will not go! At idle and below like 2000 rpms (I don’t have the tach so I’m guessing on the rpms) it runs and revs perfectly fine, then when it passes that magic number is just stops. Its not a misfire. It sounds the same as when it hits the rev limiter but at 2500rpms.

So my guess is that for whatever reason the engine is shutting off the fuel or spark when it hits those conditions. Someone suggested to me this morning that maybe its the temp sensor that runs to the computer because it runs perfectly fine when it first starts up until it reaches operating temperature. Anyone have any thoughts on whether or not this is true? Need to get this fixed asap as its my only set of wheels in the snow

 

[kc15842]

Have you checked for a code. I'll bet a 52.

 

[theking11863]

Have you checked for a code. I'll bet a 52.

I checked. No codes. I let it run for a minute then disconnected the temp sensor and it seemed to run fine during my test so I’m thinking it is the sensor. Just remembered I have a brand new toyota sensor in my 4runner that isn’t being used so I think I’m going to try and put it in the pickup and see if the problem goes away.

If not I’m thinking maybe tps since on one of my last drives it started to wake up a bit when I floored it. If its not talking to the computer I’d imagine it wouldn’t allow the engine to go unless it could really tell the throttle body was open. Honestly I’m grasping at straws on that one but the 4runner has a good sensor so its easy enough to remove and check. Something’s gotta work eventually right?

 

[zidaro]

change your fuel filter recently?