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@macleanflood Are you hinting towards a PCM issue which might be causing a bogus code to appear?

Reviving this thread. I have a 2006 TJ throwing a P0174 code. The jeep has the OEM PCM. Took it to the mechanic and they ran some tests on it: - O2 sensor readings are good - Did a smoke test and did not find any leaks It's still sitting in the shop and they will do an EVAP ESIM testing on a...

I am just living with it.

To close on this: I was able to get a good amount of 'thump' by turning the input sensitivity of the amp to a low value (set to 0.7V for the knob which goes from 0.2V to 5V) Also set the cross over settings on the HU to two way. I am happy with the setup and will likely stick to it for sometime...

It makes sense if you dial back the gain on the amp. The amp I am using does not have a gain knob, but it has an input sensitivity knob (from 0.2V to 5V). I was reading online and my takeaway is that the sensitivity is somehow related to the gain. I have set it to 2.5V which is the pre-out level...

I will pick up that twisted pair cables. Right now I am using the basic bestbuy RCA cables. Back of the deck is chock-full!

I intentionally wired the sub using a bridge wire for a 4Ω load. This way the power rating of the sub (75W-150W RMS) somewhat matches the output power of the amp (200W RMS). Final load of 2Ω will likely smoke the subwoofer since its rated to 150W RMS and the amp will be pushing 300W RMS.

Terrific! A couple of questions: - Did you have a 6 channel Head Unit? - Where did you get the adapters for connecting the RCA cables to the amp?

I wired up the 6.75" 2Ω DVC kicker sub for 4Ω load and connected it to a Kenwood KAC-M3001 which outputs 200W RMS at 4Ω load. For some reason, the system falls short of my expectations. The bass from the sub is feeble. I am going to check the ground connections and make sure all other...

That's a neat setup @Mikee024 Is that the 6.75" kicker sub?

Nice setup! What is the model number of the kicker sub and amp that you used?

Thanks Jodh! This will be the next upgrade. For now I am sticking to a 6.75" kicker sub and mono channel amp. Wiring up the 5 channel amp is not something I am familiar with at the moment. But if you have any pointers on a HOWTO, that will be sweet.

I removed the 12 way connector which goes to the center console and the sound still comes out of the other 4 speakers. This is amazing. So that conclusively establishes that the other 4 speakers are not running from the amp. Although the sound was not really that good with the amp connected...

I am more than happy to remove them! So I can leave the 12 pin connector hanging?

So it's only used for the factory sub and the amp? I see the pin out diagram of that 12-way connector has some connections to the front and rear speakers.

Any pointers on how to install a 3rd party amplifier on a TJ which came with the factory amp and sub in the center console? The jeep already has an aftermarket JVC head unit with RCA ports. I want to install a JL Audio JD250/1 mono amp with a kicker sub. What to do with the 12-way connector...

I have learnt to live with it. I bought an OBD scanner and clear the code whenever it lights up :ROFLMAO: Maybe I will go with PCM replacement when the code shows up every time I crank up the beast. As of now, the code shows up every 3 weeks or so.

ugh! P0340 came back after replacing the OPDA with crown unit and NAPA cam sensor. Is it now time for PCM fix?

@FarFire70 Yes, it stops on depressing the clutch to the floor. How long have you been driving with this noise?

I am hearing this loose gravel/box of marbles sound when in neutral(06 TJ with NSG370). Sounds familiar to anyone?