HELP!! Car won't shift until ~4000rpm!!! HELP!!

[ned4spd8874]

I have a 1995 240sx se. Lately, it has been idling a little high when I stop. And today it started not shifting until it was at around 4000rpms! Then if it drops down below 3000 or so it downshifts! So basically, the car is constantly running at high rpms.

It just started this today after a huge rain. I thought something was wet, but everything is pretty dry now and still have the problems.

I checked the fluids and the transmission fluid was fine, but the oil was low. I filled that up and drove it around for a little while, but no difference.

HELP!!!!

[Florida240sx]

Well assuming this is an A/T. Only thing I can think of off hand is down by your foot where the gas pedal is, there is a switch.Tells your ECU your WOT so it will do more agressive shifts.

[ned4spd8874]

Yes, it is an automatic.

So is that switch bad then? How can I test this? Also, what is a WOT?

[ned4spd8874]

Also, the engine light is on..how can I check the codes??

[Florida240sx]

Wide open throttle. When your foot has the gas pedal pushed to the floor. http://www.240sx.org/faq/artic...h.htm

[ned4spd8874]

This is what I learned on the way home tonight.

*The O/D Off light flashes 16 times when I start the car.

*When I shift from (P)ark to (D)rive, the car lurches forward.

*It will not shift from 1st, 2nd or 3rd until the rpm's are at or near 4500.

*Overdrive does seem to kick in at highway speeds.

*When driving at highway speeds (70-80mph) I can turn the O/D Off and it WILL shift down; then up when I press it again.