mookiex2

We fixed it but, I am leaving this post up for two reasons. If it happened to us then it may happen to someone else. I have attached the photo because I have a question as well. The plug connected to the small housing had a missing bolt and it was moving around. I noticed when I moved it with my hand the engine would stall. My question now that we put a bolt in and it fixed the car is, What is this housing and plug? I am very curious as I cannot find anything on it. Thank you all. ----------------------------------------------------------------------------------------------------------------------------- Hi all, My son has a 203 Impreza RS 4 door sedan. We are having a terrible time figuring out the problem to the point that we are just throwing parts at it. When he is driving the car, full tank or not it literally stalls on a left or right hand turn. When going over bumps in the road is loses power like it is going to stall, but he usually still has his foot on the pedal so you notice the hesitation until it catches again. We have done the fuel pump that is in the tank, IACV, TPS, Fuel pump relay under the passenger side kick plate and the fuse. IT has its' tune up, but I think this is a fuel issue and I am not sure where to check next. Any ideas? It sits and idles fine and runs fine. It is the turns and the sharp turns and bumps. The typical bend int he road does not affect it. Thanks all for your help. If we cannot figure it out it will go to the mechanic next week. I am tired of messing with it.

Yup. That is why I was leaning towards an exhaust leak since I can smell it, but I have never had a CAT go out on me so I really do not want to take a run at that one right away. I did the CATs' on my son's Imprezza and that was not the issue. I am just at sort of a loss with this one. I have received bad O2 sensors before on other vehicles and do not want to think I have that problem, but I can revisit that if all else fails. I suppose I should remove the heat shields and see what I can see if anything.

Sorry left that out. They are aftermarket and new.

Thank you. I will check it out. Having no noise to chase has me stumped. LOL. I suppose if I start falling asleep under the car I may know I am in the correct area. The heat shields make it hard to check everything . Have a great day.

2001 Forester "S" 220K miles Vehicles runs great without issues and gets its' regular service. It has a new head gasket, timing belt and water pump within 1 year NGK Plugs Coil Pack is new, but is aftermarket O2 sensors are aftermarket but direct fit

Hi all I am not sure where to post this so I will give it a shot here. I will try to explain how things progressed and what I have done along the way. I hope it helps. After I bought the car used the check engine light was off and it came on a few days later and went off again for a few weeks. I checked the code and it was P0301, (Cylinder 1 Misfire Detected). The CEL would turn on and off occasionally so I changed the Wires, Plugs and coil pack and went ahead and did the 2 - O2 Sensors. Now over time I have earned 2 additional codes for my efforts. I have all three, (P0301, (Cylinder 1 Misfire Detected), P0303, (Cylinder 3 Misfire Detected), & P0420, (Catalyst System Efficiency Below Threshold)). I am not sure where to look or spend my money on the next possibility. The car runs great, doesn't miss or run rough at all. Starts without hesitation and moves down the road like there are no issues at all. When I bought it the Head Gasket, Water Pump and timing belt were all done. I wonder if I have an exhaust manifold leak that I cannot hear. If I have the outside vent open and am sitting idle at a light or a stop sign, Basically just sitting idling), I can smell exhaust. When driving I do not, and when I have the re-circulation, (Vents closed), I have no issues. Could I have an exhaust leak at the manifold and not hear the leak? Would this explain the codes and the smell of exhaust? I have read that an exhaust leak can throw these codes. I do not know what else to think since the car is running great, with exception of what I have mentioned. Any real input based on direct knowledge or experience with what I am experiencing is greatly appreciated. I have searched and went through forums for help. If you have direct experience and knowledge then please give a guy a hand with this. Thank you all in advance. Thank you all for your help.