Hi guys I'm having a problem with my 2005 Corolla. It idles a little to low and when I try to start it in the morning below 30F it idles really rough for about 10 seconds and it also throws a little bit of smoke from the tail pipe. The smoke is dark gray or black it is hard to tell because it is only a little and it last for about a second. The check engine light was on and when I had the code read it was the P0171.
After changing all those things the check engine light went out and hasn't returned since 1000 miles ago. It has not come on but, my problem is still there. It still idles low and when I start it in the morning on a 30F day it idles rough. If it is above 35F it does not idle rough in the morning. Besides the problems the car runs great. It has full power and does not hesitate. Please any ideas because I have no idea what is wrong with it.
There is also bulletin for that code which involve in replace the ECM, which would be cover under a 8yr/80,000mile emission warranty. Contact a dealer to see if your vehicle falls under that.
N.E.O.
Last edited by new echo owner; 11-30-2008 at 12:53 PM.
Yes I have read that thread. Actually the thread is of me and the other guy. Our problems seem to be a little different and that is why I started this thread. My car has 87,000 miles so it wouldn't be covered. Where can I find the bulletin and do you know exactly what it says?
Thanks N.E.O. I found the T.S.B but, there are several and they don't say what is the problem that the car is having except for the P0171. They only say the fixes. Besides the TSB that you gave me I found another one; it is EG051-05 and it basically says that I need to replace the A/F Sensor which under further observation is the 02 sensor. I am so confused. I just need to know which TSB does my car fall under.
I say 02 sensor because according to the haynes manual the car either has one or the other. The Haynes manual does not show a location for the A/F sensor and it says that it is the 02. I'm having difficulty understanding the VIN range. Under the TSB it say "Production change Effective VIN" which to me means that after this number they are fine. I don't know how my VIN falls into that range. Do you know how to read it? I don't have freeze frame data.
The 05+ upstream pre cat sensor (located on exhaust manifold, bank 1 sensor 1) is actually an air fuel ratio sensor, which is a type of O2 sensor. That is the reason the 03-04 front sensor has a different part number and more pricey.
I say 02 sensor because according to the haynes manual the car either has one or the other. The Haynes manual does not show a location for the A/F sensor and it says that it is the 02. I'm having difficulty understanding the VIN range. Under the TSB it say "Production change Effective VIN" which to me means that after this number they are fine. I don't know how my VIN falls into that range. Do you know how to read it? I don't have freeze frame data.
mikered30 is right, the sensor before the cat is the A/F sensor.
As far as the VIN, compare the VIN that the TSB had listed, if it has multiple years, the earlier years will all be covered, the VIN listed would be for the last year that was involved up to that particular VIN#.
I understand what you are saying. I just don't know what I am looking for in the VIN. The TSB doesn't give a range it just says. "production change effective VIN" It gives a number of 2T1BR3#E#6C576811 I don't know what I am looking for because it doesn't give a range. MY VIN # is 2T1BR32E95C404467. What am I looking for? Please advise.
I understand what you are saying. I just don't know what I am looking for in the VIN. The TSB doesn't give a range it just says. "production change effective VIN" It gives a number of 2T1BR3#E#6C576811 I don't know what I am looking for because it doesn't give a range. MY VIN # is 2T1BR32E95C404467. What am I looking for? Please advise.
That TSB covers for 05' and 06' vehicles, and the VIN 2T1BR3#E#6C576811 is for the last 06' vehicle that was covered in the TSB. Since your car is a 05', the TSB would be applicable for yours too. BTW, all three TSB for the P0171 are applicable for your car. However, you still need to determine which one would actually fit the symptoms that your car is experiencing.
Just one question though, in your post on the other thread, the part # you had listed was for the original intake gasket that was having problem, was that the gasket you had installed back onto the car? The current part # per the intake gasket TSB should have been 17171-22060.
N.E.O.
Last edited by new echo owner; 11-30-2008 at 06:53 PM.
This is the number of the gasket that I installed. The part # is 17171-0D020. The dealer advised me that there are different gaskets depending on where your car was built. Even if they gave me the old one remember it is new and should be sealing correctly. Believe me I feel like changing it again just for the heck of it. It is so easy to change and it only takes 30 minutes. What are you looking at in the VIN number to be sure that my car is one of the affected ones.
It is true that originally there were two different part numbers depending on where it was built, however, the TSB had superseded it with the new number which means for correcting the problem you were having, all original part #s are no good, you need the one with the new part number. There must be something different to the gasket otherwise there wouldn't be a different part number. Go and ask the dealer specifically for the new number part.
The VIN breaks down to different parts, the first few parts are for the manufacturer, vehicle line, model number, production plant, internal check digit and the last 7 number are the serial number of the vehicle. But since the TSBs were all for multiple years and 05' is the first year that was involved, so the VIN that was listed doesn't really matter.
N.E.O.
Last edited by new echo owner; 11-30-2008 at 07:12 PM.
Do you understand how the VIN works for each vehicle?
The VIN listed does matter to your car, since your car is a 05'; what the VIN in the TSB is saying, any vehicle within those that were produced before this VIN# is covere by this TSB.
Let say for the TSB EG041-07, and your VIN is 2T1BR3#E#7C860055, and the TSB listed VIN is 2T1BR3#E#7C850014 then it wouldn't be covered since it was produced after the effective VIN range.
Does that make any sense to you?
N.E.O.
Last edited by new echo owner; 11-30-2008 at 07:53 PM.
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