tps settings question vs sulfur smell

[friendly_jacek]

Hi,

I have a 2003 corolla S with chronically poor mileage and occasional sulfur (aka sewer) exhaust smell. The MPG varies from 26 city to 30.5 hwy (constant figures since i bought the car new; now it has 15000 miles).
I recently scanned the ECU with my new OBD2 interface.
No codes, O2 sensor works well. However, the TPS registers 10.2 % at idle without pressing on accelerator. Engine effort is registered as high as 14% at idle (warm engine). IMO, it should be 0% and couple of percent, respectively. Can anyone confirm that the TPS settings are wrong for this model?

If so, IMO there is chance that every stinky Corolla out there is stinky because emission control devices are installed at plant without proper adjustment allowing for rich A/F ratios.

Anyone, please.
Thanks,

Jacek

[Chris Corolla S]

I have not heard of this before, I will move this to the tech section...

[port69]

the tps has to be 10-12% open at idle or how is the air going to get into the engine? As for the "sulfur" smell- try diffrent gas, the place you are buying it from has high sulfur content. Are you loading the engine exessively or before the cat. is hot?

[friendly_jacek]

RE: "the tps has to be 10-12% open at idle"
In my 2000 subaru legacy it is 0%. This why I am asking the question.
Is there enyone with obd2 scanner and 1998+ corolla to check this for me?

RE: "how is the air going to get into the engine?"
Well, isn't there an air bypass valve controlled by ECU to mantain constant idle RPM.

RE: "As for the "sulfur" smell- try diffrent gas"
I know that, but sometimes one buys at unknown station; you do travel, don't you?
Normal cars should not have this problem. But I am not going to get into this exchange. If you had that problem, you would know it is not normal.

RE: "Are you loading the engine exessively or before the cat. is hot?"
I don't understand this one but thanks anyway.

[friendly_jacek]

Follow up:
Toyota admitted the sulfur problem is real and not in owners head.
See the link for TSB:

http://www.autosafety.org/Toyota%200...20Catalyst.pdf

Has anyone done the repair/
If so, did your MPG changed?
Thanks