Shift solenoids are in the bottom of the transmission usually attached to the valve body, accessible by removing transmission oil pan.
Have you tried manually shifting it to see if the acceleration issue changes?

 

Shift solenoids are in the bottom of the transmission usually attached to the valve body, accessible by removing transmission oil pan.
Have you tried manually shifting it to see if the acceleration issue changes?

I thought It is an externally mounted solenoid located underneath the battery and behind the Neutral Safety switch. I was also thinking its an electrical fault coz the code read #3 which is electrical.
It's an auto car, except if I don't understand what u meant by manual shifting

 

But could the code 0773 be there cause

 

P0773 is electrical because the shift solenoids are electrical components. Shift manually, instead of putting in in D and driving off put in in L or 2 and as the speed increases shift it up the next level until it's in D.
That code relating to the solenoid could be part of what is causing it to feel sluggish.
Most transmissions like that one have 3 shift solenoids, that maybe why it ends with the #3.

 

When the shift solenoid fails and code set, the transmission defaults to 2nd start, that is why the sluggishness until you get up to speed. However, in some instances, that would be the only gear you have.
If the problem is intermittent, you can clear the code and the transmission will work fine again until it happens again!
There are different causes that can cause that code to set, not just the solenoid alone, like a stuck valve. But testing the solenoid circuit would be the first step.
Nevertheless, I would clear the code and see what happens.

 

OBD-II TROUBLE CODES
P0773 Code: Shift Solenoid E Electrical

Written by
CarParts.com
Staff Writers

Contents hide
1. What Does the P0773 Code Mean?
2. What are the Possible Causes of the P0773 Code?
3. What are the Common Symptoms of the P0773 Code?
4. How to Diagnose the P0773 Code
5. How to Fix the P0773 Code
6. Other Notes About the P0773 Codes

Most automatic transmission vehicles have solenoids that manage fluid pressure between hydraulic circuits in the transmission assembly. The solenoids are grouped and labeled “A,” “B,” “C,” and so on. When the powertrain control module (PCM) detects that there’s something wrong with the “E” solenoid group, the P0773 code might appear when you plug in a scan tool.

What Does the P0773 Code Mean?

The P0773 code is defined as “shift solenoid ‘E’ electrical.” The PCM can trigger several related codes depending on the kind of malfunction that it detects. For this particular code, the PCM perceives that the “E” shift solenoid circuit has an electrical malfunction.

The P0773 code is set if your PCM perceives that the “E” shift solenoid circuit has an electrical malfunction.
Note: The P0773 code may be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition.

What are the Possible Causes of the P0773 Code?

The definition of the code can indicate that there’s an electrical malfunction within the solenoid group, but the code can also be set by several transmission-related problems, such as the following:
Insufficient transmission fluid
Dirty or contaminated transmission fluid
Dirty or clogged transmission fluid filter
Defective transmission valve body
Blocked hydraulic passages
Internal transmission failure
Faulty shift solenoid
Corroded or damaged connectors
Faulty or damaged wiring
Faulty PCM

A transmission that gets stuck in a gear is one sign of the P0773 code.
What are the Common Symptoms of the P0773 Code?

A shift solenoid issue can result in transmission-related symptoms. Here are the most symptoms of the P0773 code:
Transmission slipping
Transmission overheating
Transmission gets stuck in a gear
Decreased fuel economy
Engine has misfire-like symptoms
Vehicle enters limp mode
Check engine light
How to Diagnose the P0773 Code

A P0756 code can be triggered by transmission-related symptoms, but accurately identifying the faulty part can be difficult. The definition of the code might indicate that the shift solenoid has triggered the code, but isn’t always the culprit. Since transmissions are located under your vehicle, inspecting it and finding the cause isn’t easy. If you want to properly diagnose the issue, then you should consult a trusted automotive professional.

How to Fix the P0773 Code

Since there’s no magic bullet for code issues, fixing the problem will depend on the faulty component. The first step towards repairing the issue is getting an accurate diagnosis.
Once you’ve identified what’s triggering the P0773 code, you can consult credible online repair resources and how-to guides for the best possible solutions. You should always consult your vehicle’s repair manual when it comes to troubleshooting and repairing diagnostic codes. Chilton repair manuals can also be useful. However, ALLDATA subscriptions are even better, as they provide detailed factory repair information for drivers who want to do repairs themselves.

Other Notes About the P0773 Code

Aside from a faulty shift solenoid, this code can also be triggered by a faulty transmission fluid filter, or by the other causes listed above. Before you replace your shift solenoid, test it to make sure that it’s the faulty part that’s triggering the code. If you don’t follow the correct inspection procedure, then you might replace a perfectly functioning solenoid. Vehicle makes like Chrysler, Ford, and Toyota can be affected by issues that set the P0773 code.