Does anybody know anything about Diagnostic Code P1477 - Leakage Diagnostic Pump Reed Switch Did Not Open? I can't seem to find anything written up on it so that I know what to fix. What the heck is a "Diagnostic Pump" anyway?

Thanks

 

I only know Chrylser and Hyundai evap systems, but MINI must use a pump to pull a vacuum to leak check?

Anyway - welcome to NAM! How many miles are on your MINI? What year is it? A quick call to your dealer will tell you if your emission warranty has expired and if that diagnostic/repair will be covered.

 

Thank You. it's a 2003 Mini (not the s). 72kmiles. I will keep doing some more research as well as check with the dealer her in Phoeinix.

 

The Leak Diagnostic Pump is number 3 in this illustration...

...it's back near the gas tank...and as shown, on the same bracket as the carbon filter.
http://www.realoem.com/bmw/showparts...26&hg=16&fg=10

 

Thank you VERY, VERY, VERY much. I will go check it out and try to find the problem. I think I will order the Bently manual as well, I have the Haynes (brit version) and it's help is somewhat limmited.

 

My 1477 was a vacuum line leak:
https://www.northamericanmotoring.co...50-post10.html