1999.5 Pathfinder Issues...

[OE812]

This is the first time I've had a driveability issue with my Pathfinder. Mileage is 78,000 and I changed the transmission fluid and filter about 10,000 miles ago. The pan at that time was clean with no metal fragments. Used 8-9 quarts of Nissan D transmission fluid. Anyway, I am getting 2 transmission issues and need to know where to start.The first issue is when I shift from reverse to drive, there is a 2 second pause before it engages in drive so I can accelerate. It doesn't matter if the operating temp is cold or hot.

The second issue is as I am coasting >50mph and slow to 30-35mph and try to accelerate, the transmission doesn't downshift to 3rd or 2nd. But when I floor it, it abuptly downshifts to 1st and nearly red-lines until I back off of it.

Fluid looks and smells new. The level is fine. There are no TCU codes or engine codes.

Where do I start?

Any help would be appreciated.

jeff

[pathfinder_se_black]

try resetting the computer by unpluging the negative battery cable and leave it unplugged for 10 minuites, hope that helps.

[OE812]

That didn't reset the computer.

[KoukiS14]

Someone help me out here -- I know on my 97 240sx, there is a screw on the ECU that can be turned to reset it. . . but I'm also told that the battery unhook does it as well.

Anyone know?

[OE812]

This is the third nissan forum (NICO, pathfinder, and nissanforums) I've posted to on this issue and no one has been able to start me in the right direction?

It doesn't appear to be the transmission or sensor as there are no codes. Anybody o: