Suggestions...
Thread Starter
Launching!
Joined: Aug 2005
Posts: 277
Likes: 0
From: arlington,tx
Suggestions... Okay so my car is a 02 auto ws6 and since I bought it I've had one issue which is driving me insane now... If I try to start it when it's cold outside it will start but die right away. If I start it right after it will start up but then will barely be able to hold on, its sputtering and such and then it's like all of a sudden the idle shoots up to 3-4 and then goes back down after a few minutes.
Now to complicate things I started getting a check engine light and read the codes and it said that my O2 was responding too slowly, but I just replaced both of my O2's after I installed headers. It seems like they stop working if I've been driving around for awhile but at the same time, they will come on during a cold start after my car has died. Seems like if the O2's were bad they would have went out by now.
The past few days with the warmer weather we've been having the damn codes haven't popped up even once.
I don't know if it's related but my car is running like garbage.
Any thoughts suggestions...
Now to complicate things I started getting a check engine light and read the codes and it said that my O2 was responding too slowly, but I just replaced both of my O2's after I installed headers. It seems like they stop working if I've been driving around for awhile but at the same time, they will come on during a cold start after my car has died. Seems like if the O2's were bad they would have went out by now.
The past few days with the warmer weather we've been having the damn codes haven't popped up even once.
I don't know if it's related but my car is running like garbage.
Any thoughts suggestions...
Teching In
Joined: May 2010
Posts: 32
Likes: 0
I am going through this right now and was going to post about it. My car is stock. The codes I got were for the MAF, MAP and EGR. I put in a new MAF, IAC and cleaned all connections with electrical cleaner. I cleaned the IAT too just for good measure.
Now if I undo the battery for awhile, sometimes the car will start okay and turn great for the whole day. The next day back to square one. I will say when it runs right, it is smoother in all aspects. It hasn't started right for a few days.
My next step is to check all the grounds, A friend checked the car out and the oxygen sensors are not working as fast as they can. One is half as fast as another. The MAP code has not come back. The EGR will have to wait for after the Holidays. This is not my daily driver.
So I have subscribed to see where this goes.
Now if I undo the battery for awhile, sometimes the car will start okay and turn great for the whole day. The next day back to square one. I will say when it runs right, it is smoother in all aspects. It hasn't started right for a few days.
My next step is to check all the grounds, A friend checked the car out and the oxygen sensors are not working as fast as they can. One is half as fast as another. The MAP code has not come back. The EGR will have to wait for after the Holidays. This is not my daily driver.
So I have subscribed to see where this goes.
Last edited by 1998 B4C; Dec 20, 2010 at 08:51 PM.
Think that maybe because your O2's arent working at full efficiency that you're dumping just a little too much fuel and gradually fouling out the plugs over a period of time? Then you let it sit so the fuel on the plugs dries up, then you start the whole cycle over again?
