280zx 1983 na every thing was good until i got up this morning my car wont dgo above 2000 rpms. not because of it badly running but more like a rev limiter right at 2000. any ideas please help

 

tps sensor has moisture in it. did anything happen other than night fall that you may or may not be aware of? like really heavy rainfall. or washed out the engine bay, or drove through a puddle earlier that day. check also for loose connections on the engine. think and report back.

 

actually i know this sounds stupid but i havnt had a hood on it for a few weeks and it rained again last night? iv power washed the whole engine before and havnt had a problem where is the tps sensor

 

the little box on the throttle body, i would seriously get something over that motor, even if its a beet up, rusted, dented, crappy hood, it WILL save your ***..

 

thank u guys very much

 

That moisture sensor is sure a PITA. I washed the car one night and then couldnt get going faster than 45 in 5th the next day. Is there any way to disable it or dry it out quickly if this happens again?

 

Just disconnect it & blow it dry w/ compressed air, let it air dry, or spray it w/ WD40. Then apply some di-electric grease.

 

Thats the key right there if you dont the headache coming back time and time again.

Also using some shrink wrap or electrical tape to seal off the connector boot where the wires enter if the boot is rotting away from age. That thing needs to be sealed as well.