Will resetting my ECU delete my tune?

Will resetting my ECU delete my tune?

no, it will not reset your tune. When you tune with open source, it write it to the ECU. When you reset the ECU it just resets to whatever you last flashed it with.

How do I disconnect my car battery?

Disconnecting A Car Battery

1. Start By Turning The Ignition Off.
2. Find Your Car Battery’s Negative Terminal.
3. Loosen The Nut On The Negative Terminal With A Wrench.
4. Remove The Negative Connector, Then Repeat With The Positive Terminal.
5. Remove The Battery If Necessary.

How long should I disconnect my car battery to reset computer?

Because some of the electrical current is preserved in the computer for a while afterward, most sources recommend leaving the battery disconnected for at least 15 minutes to make sure the computer forgets the code before you reconnect the battery.

What terminal do you disconnect when working on a car?

The terminals will be marked positive and negative. Make sure you disconnect the negative terminal first. Lay the disconnected negative cable carefully to one side, making sure it’s well away from the battery terminal. Disconnect the cable from the positive battery terminal in the same way, then lay it to one side.

Which cable do you disconnect to check alternator?

If you’re tempted to test an alternator by disconnecting the negative battery cable, don’t do it. A good alternator may indeed keep the engine running without the negative cable, but this was never a good test. In the pre-computer days, you could pull it off without damaging anything.

Why do you connect positive first?

Connect positive first, negative having less potential won’t arc. The higher the voltage, the greater the chance of arcing and fusion. On a car if negative first and you are touching any metal part of car, when attaching positive there is possibility of arcing through you. Your body becomes part of the circuit.

Can jumping a car ruin your alternator?

No jump start cannot kill an alternator as long as the jump start voltage is correct. If you use a 24 V to jump start a car of 12v you will blow the alternator and the electricals. Originally Answered: Can jumpstarting a car damage the alternator? Simply.

Does it matter what order you put jumper cables on?

The safest order to attach the jumper cables is as follows: Attach one red jumper cable clamp to the positive terminal on the dead battery. Attach the other end of the same cable, the second red jumper cable clamp, to the positive terminal on the working (live) car battery.