@jerbear1969 you have a lot going on with your Toyota. First rest assured that you cannot reverse the polarity of your battery with a wrong charge etc. Not possible based on the way ta battery is designed. You may have issues with the meter. So you replaced the battery and your car started but no power options until you replaced the fuse. Now the lights etc. work and your car starts but immediately stalls again. That does sound like a fuel issue but since you repalced the battery try to re-teach your computer. Se if this will work for your Camry

1. Pull your parking (emergency) brake. (Brake on) Add additional chocks to prevent your vehicle from moving

2. Start the engine and step on the gas steady around 800 RPM. (with your right foot)

3. After 15 minutes, do all these at the same time: Step on the brake pedal (with your left foot), put the transmission shifter in DRIVE (D) with the RPM steady at 800 RPM. !!!!MAKE SURE YOU HAVE YOUR PARKING BRAKE AND CHOCKS APPLIED TO PREVENT YOUR VEHICLE FROM MOVING!!!

Do not let the idle fall below 800. Keep it at 800 RPM for around 15 minutes..

After this your idle should be back.

If that does not work then you will have to check the fuel supply. Check to make sure that your fuel pump is working and that you have pressure on your fuel lines. Get some throttle body cleaner and clean your throttle body and IAC valve.

@aprilmarie we need to at least know if it is a 4 cyl 2.2 liter 5sfe engine or a 6 cyl 3.0 liter 1mzfe. The importance here is that there are many engines that will fit from the block perspective but some swaps will require changing the heads (due to anti-knock sensors etc) and oil pump as well. So it may be a PITA to do it. You may be better off finding an engine that was meant for your model Camry.

@linda75783 there are a few possibilities. First check the tires and the rims. Take it to get those balanced if they are still decent. If not, replace your tires. Next would be suspension issues. Bad tie rods, balljoints and bad wheel bearings are all a possibility. Take a look under there and see if you can make out any obvious damage. I’d start with the wheels (tire/rim)

The package tray needs to come out in order to replace the speaker covers or speakers.

1. Remove the 3 bolts attaching the deck to the frame

2. Remove the side panels that hold down the deck so you really have to take these off. They should just snap off.

3. Remove the high mounted stop light.

4. Either remove the back seats or try to fold the back seats down and see if that gives you enough room.

5. To remove the deck you first need to go in through your trunk and you'll see 4 white clips. Push these up with some pliers, then from the inside just tug it away. Be careful shimmying the tray out, since you do not want to break it.

6. Remove old speakers. They should be held down by 3 screws.

@uche4706 your car does not have a speedometer cable. Your Toyota's speedometer is controlled by a Speed Sensor (VSS)that is attached to the top of the bell housing. There is a spindle that matches up with the Flywheel, and there is an electronic pickup that detects how fast the Flywheel is spinning and Sends the signal to the Cluster. If the electronic pickup part of the Speed Sensor is not detecting how fast the Flywheel is spinning, your speedometer will not work. Now if your speedometer is not working, it could be the Vehicle Speed Sensor (VSS) but also the cluster itself (which would be my first choice since a failed VSS or ECM would most likely trigger a "Service engine Light" OBD code) as well as the ECM. You do want to check on this. The instrument cluster comes out with 5 screws. The speedometer assembly comes out with 5 screws. Look under the odometer display for the speedo chip, and right next to it, is the ceramic resonator. You can try to bend the resonator over about 45 degrees. If that doesn’t fix it then buy a new speedometer assembly. If unsure you can always post some good images with your question which will allow us to see what you see. Use this guide Adding images to an existing question for that. Not sure what you mean by the “car movement is bad”. So, we would need more information on that.

@cubanpete702 since your brake fluid level does not change you need to check the brake booster first and then the master cylinder. Check that the pushrods from brake pedal is mounted properly and that your brake booster isconnected properly to your master cylinder.

Dale Trivett it sounds like an issue with your ignition switch or the ECU. For an ECU error you would need to have it scanned. To check your ignition switch use the attached image and a multimeter and check for continuity as shown

@henry2 possibly your fan relay or the coolant temperature switch. Disconnect the coolant temp switch located on the bottom of the radiator and see if fans come on. When the switch is disconnected, the fans should run all the time when the engine is running. If that still does not work then you will have to suspect the sensor for the computer. It is a bit cumbersome to test it by placing it in hot boiling water and testing it with an ohmmeter to see if it closes the contact at the right temp. I just replace mine ;-) After that check the relay to see if it works.

@linnyk did it fit before? There should be no reason to have a short battery cable. Make sure that you have the right battery and have it in the right orientation. Batteries are not all build the same. Sometimes the post are on the opposite ends, so make sure that the battery you have is indeed for your vehicle. If it is, try to turn it around and see if that fits.

@paloma9960 I realize this is an old question and may not be of any relevance to the OP but may be somebody else will be looking at the same issue. Here is what this all looks like

Here is how to work on the 2001 Toyota Camry Rear Brake Caliper