So when it's nice and warm outside I have no cel, but when I'm on my way ho.e from work in the morning and it's in the 40's my cel will come on and it's always code 41 & 71. I have adjusted the Tps already so that code may be stored in the ecu but as for the egr it might be clogged...

But is there a reason that they would come up together?

 

I had the same codes 3 weeks ago. I followed the TPS adjustment tutorial on the supra forums I bought a cheap feeler guage set at autozone, and 1 - new TPS (to replace stock main tps) from amazon.

http://www.supraforums.com/forum/sho...ting-Procedure

After a battery disconnect for 5 minutes, the TPS code went away and all I have is the EGR code left to address. Sigh I will probably sort the EGR code out with the resistor trick.

 

I just cleaned out a salvage egr. Im sure mine is clogged or stuck. This gs is driving me crazy having to fix years of neglect from previous owner.

 

whats seems to be the trouble are you not passing emissions.