P0770 2004 nissan maxima 3.5 SL AW55-50sn Which solenoid is the "E" solenoid? I have a letter B stamped on my valve body.

I think I answered this a couple of weeks ago on a different Nissan. Both codes are saying the computer can not control valve timing on bank two.
There is a solenoid that uses engine oil flow to adjust valve timing.
If the sensors and solenoid are good, the problem could be lack of oil reaching the solenoid, or a problem with the wiring harness.

Failed shift solenoid, defective wiring to shift solenoid or a defective PCM or hydraulic control valve body. All parts are located inside the transmission except the PCM and the external part of the wiring harness.

Ok, I am about to solve the mistery on the transmission problems with these 2004 and 2005 Nissan Maxima.
I had 2 Maxima's 2004, let's call car A with a bad transmission and good motor, and car B with good transmission and bad motor.
1. I swap engines from car B to car A, after that, car A runned good with not a single issue.
2. Car B was with out and engine and a bad transmission,
3. I found a motor and transmission from a wrecked salvage 2005 Nissan Maxima with only 25,000 miles in it,
4. After the installation of the good engine and transmission on car B, I found a broken solenoid,
lets call the good engine and transmission (SET).
5. Remember car A is fixed, but car B had a bad transmission.
6. After removing the bad transmission from car B, the SET had a broken transmission solenoid called (pressure control valve solenoid) cause by the accident, the transmission valve cover had a small dent, right where the solenoid is, that how it got broke,
7. Since I still had the bad transmission from car B, the solenoid from that transmission were good in shape, so I thought I was lucky enough to swap the solenoid from car B to the SET,
after I did that I was good to go very confident that car B was going to run fine, but it did not.
8. Car B with a 25,000 miles SET end it up doing the exact same problem that it had before with the transmission, it is near impossible that the problem is the wear on the valve body since the SET only has 25,000 miles and I only swap the solenoid. 2 of them to be exact.
8. Now I am in the market to buy just the 2 brand new solenoids and cross my fingers, Nissan for some reason, they dont want to sell the solenoids by them self, you need to get the complete valve body assy. and shops are happy with that idea cause it is more money on the pocket for dealers and shops, so I hope is the solenoids, they are really easy to replace, just by removing the valve body cover and remove 2 bolts, 1 for each solenoid and that's it. I called one guy who owens a shop and I ask him if he sells the solenoids remanufactured and he started yelling cause he is thinking that we are stupids since he had many people asking about these solenoids and he is saying that the problem is the valve body it self, he make me mad because I only asked him for the solenoids not to try to make me buy the new valve body assy. I will follow up after I find the solenoids and replace these on my Maxima just to confirm, any questions e mail me back at [email protected] thanks

It is a 1'1/8 " tall x1/2" w x1/2" D apparatus , brass body enclosing brown or green plastic with electronic receptacle in the bottom with 2 hose stacking on top ,one hose in bottom, mounted with one single bolt ,driver side , in front of the air intake next to the battery . It should say NISSAN K5T46583 then Mitsubishi sign then 6524

Looks something like this picture on this site.
http://forums.maxima.org/4th-generation-maxima-1995-1999/605367-help-locating-egr-solenoid-valve.html

It must be starting in second, if it is then it must be an electrical solenoid problem, it might be in the valve-body in the transmission.

Why do you need a new transmission? What was it doing. Becareful in working with a dealership. One of the most common problems is that of hard shifting or the engining reving inbetween gears then slamming into gear. This is a problem with the valve body that shifts the gears. If you get this fixed soon and are careful driving it to a good transmission shop, you will not need a full transmission. The valve body, fulid and gaskets must be replaced. This will run $1500-$1800 not $3500
This is a known defect withthe transmission that has not been recalled. Report this to NHTSA as a safety related issue.

CIRCUIT DESCRIPTION
The shift solenoid valve SL is turned ON and OFF by signals from the ECM to control the hydraulic pressure
acting on the lock–up relay valve, which then controls the operation of the lock–up clutch.
DTC No. DTC Detection Condition Trouble Area
P0743

ECM detects open in solenoid SL circuit 4 times when solenoid
SL is not operated (2–trip detection logic)

ECM detects short in solenoid SL circuit 4 times when solenoid
SL is operated (2–trip detection logic)

Open or short in shift solenoid valve SL circuit

Shift solenoid valve SL

ECM
Fail safe function
If the ECM detects a malfunction, it turns the shift solenoid valve SL OFF

if you have a shift problem just replace the shift solenoid pack it easy if you know how to work in car ,remove the transaxle oil pan and you ll see valve body and you ll see the solenoid pack

the 2/3 shift solenoid is most likely shot not an easy job its inside the valve body agood tranny shop should easily diagnose this

I don't understand you problem, I have a 2007 maxima with CVT transmission, THERE ARE NO GEARS ! WHAT ARE YOU TALKING ABOUT? CVT = constant velocity transmission. It's like driving a golf cart.