Can someone help me out? I have gone to 3 different mechanics and no one has been able to find the solution to fixing my car. Codes that are coming up are P0300 all the way to P030 with Emission, SH AWD, and CEL coming on.

Everytime I go to a mechanic. They say they have fixed it and the next morning during a cold start all the codes would pop back up. I notice the car vibrates a little more than usual, but idle seems stable. Car still runs strong when the codes are resetted, but still vibrates at a stop. See below for the things that have been done on my 06 acura rl with 133k miles. HELP ME PLEASE!!!

105k tune up done at 105k
New sparks plugs twice!
Checked coil packs
Adjusted valves
EGR Valve checked
Fuel Injectors have been checked


IF someone in Orange County can refer me to a mechanic that would be greatly appreciated too.

How much are these guys charging you?

Send me half, I'll get you a new battery, and you'll be set.

You think so? I just replaced the battery about 2 years ago. Would a bad battery to give me vibrations when stopped?

For the record, all three of us think so.

Yes it can, alternator is working hard when it tries to fill the battery.
On the other words, when battery is drawing high current "resistance" of the alternator is high.

Btw, i got also that emissions and sh-awd codes two winters ago, really dirty air cleaner element was guilty to that.

Ok. So I replaced the battery and it seemed to be running fine. However, in the morning I started the car while cold and the emissions light cel came on. So I let the car run till warm, turned off the car, then disconnected and reconnected the battery, and emission light and cel is off now.

I have a feeling it's going to come back and it may be related to a cold start when engine isn't warmed up.

Thoughts on what else it could be anyone?

Assuming it was a new battery and there is no terminal corrosion...

did you touch the terminals together? ECUs have to relearn.

If one CEL comes back, then you have pinpointed another issue.

if they did a valve adjustment and its right then replaced the injectors. I would double check the valve clearance.

I have heard rumors of an injector TSB on the KB1, but from only one member that I can recall. There's possibly more info pre-2010.

Could be your O2 sensor lol I have that same problem, it usually only throws a code when it's winter time or when it gets pretty cold at least in my 05 RL. You can also check your Cat converter too.

-Check your Battery
-O2 Sensor
-Check Cat converter