I just got my car back running after about 2+ months of sitting. It was drivin from the repair shop straight home. While parked and sitting at idle I hear what sounds like a water pump sound from inside the car. It sounds like a liquid squish sound that goes on over and over. My check engine light came on so I hooked up my OBDII and it has a P0410 code. It describes it as "Generic" Secondary air injection system. I would say that the sound, sounds llike the water pump because it sounds like a pump trying to compress or push liquid. I have no idea, any help would be appreciated.

 

http://freeautomechanic.blogspot.com...uble-code.html

What this means -
The P0410 code refers to the emissions system. The AIR pump puts air to the exhaust to lower emissions. It takes in outside air and pumps it through two one-way check valves into each bank of the exhaust.

About 90% of the time that this code is set, the one-way check valves have worn out or failed and allow water (which occurs naturally in the exhaust) back into the pump. In any cold climate, especially in climates with higher humidity, this water may be more excessive. The water partially fills the AIR pump, it can then freeze. When the PCM commands the pump on, if the pump is frozen it cannot turn, thus overloading the circuit and "popping" the fuse.

 

So how do I fix this? Do I have to change a fuse? Is this a really bad thing?

 

Might not have to do anything it can be from condinsation from the car sitting. Clear the code, a long drive up to operating temps or warmer weather may end the problem. It just might be some ice around the valve.

 

OK, I'll try clearing the code and driving it around. I have another question too, I had almmost a full tank of gas and it was also sitting in the car for the 2 month period, should I stay off the pedal till this gas is used up?

 

Did you add anything to the tank before parking it? If so you should be alright, if not smell the gas. If it's rank then try and drain it or let the car run most of it out at idle. I don't think you would ruin any injectors, but if it's really bad it could run like crap for a while. 2 months shouldn't ruin your gas, but depends if condensation got in there due to weather conditions. After your drive the gas will tell you by how the car is driving.

 

It seems to run fine. The only thing i can tell is the theres a lil white smoke coming out the exhaust and it stinks. It doesnt have a rough idle or anyhthing tho.

 

Two months with almost a full tank your fuel is fine. White smoke in cold weather is normal condinsation burning off in the exhaust and not the fuel. Fuel usually gets a bluish off white color. I would just drive the car and if you are worried about the fuel just don't beat on it till most of that tank is gone and you refill with fresh fuel.

 

Blue, the P0410 code is not a major issue. You can drive with it and not hurt anything. I got the code by knocking off the line going to one of the vaccum switches on the front of the engine. The CEL is annoying though.

MikeR