OBD Connector Memory Saver AC/9v https://a.co/d/eQN2G1D

Here's the one I use, works off 110v or 9v battery. I'd spend $30.00 and possibly save yourself headaches and extra expense.

 

OBD Connector Memory Saver AC/9v Amazon.com

Here's the one I use, works off 110v or 9v battery. I'd spend $30.00 and possibly save yourself headaches and extra expense.

This is the exact one I used when I installed a new AGM battery a few months ago. Worked like a charm!

 

Don't forget to use a memory saver when you disconnect the old battery. While not absolutely necessary the Passport (and many other modern vehicles) can have a very difficult time getting all smog systems back into "ready mode" to pass a state emissions test, if that's a issue where you live.

Interesting that the first few products I found when I searched "memory saver" were plugging straight to the ODB port. The one I remembered plugged into the 12v outlet like CD mentions below. Is one better than the other? I have a AC to 12v transformer of sorts that I use for my oil pump but it does not have any power settings; I wonder if it's safe to use that.

I had to change a battery once on an Explorer I had. The guy at Autozone recommended one of those that plugged into the cigarette lighter. Used a 9V battery. I was very skeptical as I was always used to spending the rest of the day resetting your presets, balance, treble, and whatever else got reset. But I tried it - damned if the thing didn't work like a charm! What kind of snake oil is this!??

 

Had a dead battery for my 18 Pilot. Called AAA and the dude came out and confirmed it was a dead battery. He had a new battery in the truck and I asked him to swap it out.

I asked him about the memory saver and he said he had a trick he can do instead. He jumped off the car and swapped the battery out while the car was running. He said he can to this on Hondas. He said he had done this 100's of times. He swapped it out in 5 min, was super fast. Did not know you could do that.

 

Had a dead battery for my 18 Pilot. Called AAA and the dude came out and confirmed it was a dead battery. He had a new battery in the truck and I asked him to swap it out.

I asked him about the memory saver and he said he had a trick he can do instead. He jumped off the car and swapped the battery out while the car was running. He said he can to this on Hondas. He said he had done this 100's of times. He swapped it out in 5 min, was super fast. Did not know you could do that.

My husband says that leaving the car running (off the alternator) after jumping off the old battery, then swapping to new battery was an excellent way to not disturb the memory!

 

 

Wow there's a cigarette butt in there. There's no way that just blew in there. It looks like mouse nest material. We've had a problem with those little dirty boogers. They ate the wiring harness on three of our cars and made nests all over. One above the gas tank. Around the battery. They had to take the gas tank off to get to fix the wires for the emissions control. They ate the wires to the knock sensor. Had to take the engine apart to get to that darn thing! Thank God I had insurance! My interior fan behind the glove box was full of acorns. Every now and then we'll find an acorn here and there. I open the hood to my car at night and I have a strobe light in the engine and one behind it now. So far so good. The joys of living in the woods! Be a good idea to check your car all over. We had to put wire on the air intakes where that goes into the air conditioning system. They also came up the engine intake hose and try to eat its way through the filter. It got my husband's 350Z in the hatch back where the spare tire was and built a nest on it. Three different cars several years apart.

 

Manufacturer's went to Save the Planet soy wire insulation which rodents love. My understanding is that the old petroleum ones from the past weren't their favorite.

 

BatteryPlus'. Duracell AGM are also quite good. Made by East Penn so one of the better quality car battery manufacturers. Mine's been much better than the original Honda one.

 

Don't forget to use a memory saver when you disconnect the old battery. While not absolutely necessary the Passport (and many other modern vehicles) can have a very difficult time getting all smog systems back into "ready mode" to pass a state emissions test, if that's a issue where you live.

 

Drive vehicle for 10+ miles and all should reset,