Issues with my newly installed system

[Razzaa]

I'd put money on a bad ground with voltage issues, without seeing it for myself.

How would I check the voltage? It should be drawing 14v?

 

[Etroze86]

I would do a resistance check

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[Razzaa]

I would do a resistance check

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Ok thanks. I will research how to do it.

 

[Razzaa]

I would do a resistance check

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What is the easiest way to do a resistance test?

 

[Etroze86]

Spot grounded to battery post

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[Razzaa]

Spot grounded to battery post

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Ok thanks

 

[Etroze86]

Yep

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[jackblackjeet]

I had the same issues with a craigslist buy a few years ago. Guy said he just wanted to get out of the sub game. Amp mounted to box, and I had a wiring kit already installed in my car...plug and play. After a few days I noticed, that if I played anything that would hit hard, or turned it up very much, the amp would shut down and light up a protect LED. Ended up being unable to handle 2 ohm load. I sold that amp and bought another that could handle the load. That guy had bought the amp, sub and speakers at the local stereo shop and they didn't catch it.

 

[Razzaa]

I had the same issues with a craigslist buy a few years ago. Guy said he just wanted to get out of the sub game. Amp mounted to box, and I had a wiring kit already installed in my car...plug and play. After a few days I noticed, that if I played anything that would hit hard, or turned it up very much, the amp would shut down and light up a protect LED. Ended up being unable to handle 2 ohm load. I sold that amp and bought another that could handle the load. That guy had bought the amp, sub and speakers at the local stereo shop and they didn't catch it.

Was the amp rated to handle 2ohm load?

 

[jackblackjeet]

J2-250.1 - Car Audio - Amplifiers - J2 - JL Audio Well it says that is, but it would play fine at really low levels and then shut off after a big hit or if I turned it up moderately loud. I ended up getting the 500.1 as a replacement, it worked really well.

 

[Razzaa]

J2-250.1 - Car Audio - Amplifiers - J2 - JL Audio Well it says that is, but it would play fine at really low levels and then shut off after a big hit or if I turned it up moderately loud. I ended up getting the 500.1 as a replacement, it worked really well.

Crazy. I was running 1 sub @ 2ohms with no issues. Running 2 @ 2ohms is giving me issues for some reason

 

[adrianp89]

Wait... did you change subs or just add a second of the same one?

 

[baum]

OP if you have the "basic 8.4an (no alpine)" how did the hook up for load resistance? how did they hook up for this? if they went directly from the deck to an lc7 that could be part of the issue. the chrysler decks need to see a load if they dont they can clip and not play

 

[Razzaa]

Wait... did you change subs or just add a second of the same one?

I changed subs.

 

[adrianp89]

Try all things mentioned in the thread before getting a new amp. Let us know the results.

 

[Razzaa]

Try all things mentioned in the thread before getting a new amp. Let us know the results.

Having trouble finding where the grounded the amp. The amp is mounted under my drivers seat and the ground runs under my carpet

 

[adrianp89]

Having trouble finding where the grounded the amp. The amp is mounted under my drivers seat and the ground runs under my carpet

Pop off your sill panel and pull back the carpet a tad... that is where I would of grounded it.

 

[Razzaa]

Pop off your sill panel and pull back the carpet a tad... that is where I would of grounded it.

Found it!! It looks like they sanded the paint and bolted it properly.

 

[adrianp89]

I don't see any bare metal, unless they did it to the exact size of the ring terminal. (which I highly doubt) When I do it, it typically is at least 1" by 2" just so I know I have enough contact. This could easily be your issue.

Pick one of these up: http://www.homedepot.com/p/Lincoln-...gclid=CMSShLOw8MoCFUgkhgoddMsJeQ&gclsrc=aw.ds and sand down to shiny bare metal, then place bolt back down.

 

[Razzaa]

I don't see any bare metal, unless they did it to the exact size of the ring terminal. (which I highly doubt) When I do it, it typically is at least 1" by 2" just so I know I have enough contact. This could easily be your issue.

Do I need to disconnect my battery or anything before I take it off and sand it?