tzagi

Hi There,
I got a 01.1 ctd auto with 31k (I dont take her anywhere)
today the check engine light came on, code 0071....I did a search and all I got is conflicting info, some sites say evaperative purge rate problem yet other say a 5 volt referance problem....can anyone shed some light on this?
Any help will be apreciated!...........Joe

phox_mulder

Only place I could find that even had that code was our own Tech Facts section

P0071 Ambient Temperature Sensor Performance / Rationality


Could be the IAT (Intake Air Temperature) sensor.

Here's a page with the cleaning/replacing instructions.

http://dodgeram.org/tech/dsl/sensors/IAT/clean.htm


Hope this helps


phox

tzagi

Thanks,
I did see that on Geno's site yet they are listed as pre 98 codes ....that just adds to my confusion..........Joe
Ps :the truck has been better then ever, it just loosning up, milage is up too ....from brand new by a couple of mpg....I was just getting 20 mpg at 75 cruising empty.

MLR1

I just looked on my 01 service CD and it doesn't list that code at all. It starts at P0030 then P0036 then P0106 and thats it for the P00 codes.
I wonder what it is as well.

tzagi

I guess I will be taking it to vato zone tommorow (no workie day)....will keep you posted, got to get it inspected as well as Im a month overdou

tzagi

Vato zone confirmed ambiant temp sensor like phox said.....from what I understand (and Im wrong daily, just ask my wife!) its the one that lives behind the grill, anyway the check engine light went away as the problem did not repeat.....so its a non issue.