17 Codes...places to start?
 

Have a (new to my family) Disco II 2003. Had 17 codes pop up. Am mechanical and have done some car engine work, but not in-depth on my own. Following codes are showing...any advice where to start? Can change sensors and other "easier" work. I know that one bad sensor can cause alot of issues downstream...so any help in where to start based on these codes would be helpful! I did just download the RAVE and will also try to self-diagnose. THANKS!

P1884
P1451 Leakage Detection Module
P0414 Secondary Air Injection Switching Valve A Circuit Shorted
P1482 DMTL Heater Power Stage Drive Cycle "below min."
P0445 Evap. Emission System Purge control Valve shorted
P0448 Evap. Emission system Vent Control Circuit Shorted
P0102 MAF Circuit Low Input
P0340 Campshaft Position Sensor Sensor A Circuit
P 1451
P0134 O2 Circuit Bank 1 Sensor 1
P0154 02 Circuit Bank 2 Sensor 1
P0135 02 Heater Circuit Bank 1 Sensor 1
P0155 02 HEater Circuit Bank 2 sensor 1
P0141 02 Heater Circuit Bank 2 Sensor 2
P0161 02 Heater Circuit Bank 2 Sensor 2
P0139 Circuit Slow Response Bank 1 sensor 2
P0159 Circuit Slow Response Bank 2 sensor 2

The slow/no response from the O2's mean's they are dead and not working.
So start there.
The heater circuit on the O2's means they are dead, they have heaters in them to help get them up to temp quicker, when the heaters fail it is time to replace them.
Amazon.com has the best prices on them, looks like you need all four, do NOT go universal get the exact plug in ones.
Once you have dont those rest the codes and drive it for a couple of weeks and see what codes, if any come back.

Update.....changed out all 4 O2 sensors....so far, no codes! (fingers crossed:) BTW, if you have an O-Reilly Autoparts in your area, they sell Bosch O2s and may have them in stock or get them that day!

Glad to hear all is well so far, hears to hoping.

Thanks Spike! BTW, noticed your MarsHill link....I'm a worship leader in Colorado Springs....what's your connection to Mars Hill?

Glad to hear the codes are gone for now. That being said, go to a local parts store and get your charging system tested for free. When acting up or low, it will also allow bad code readings like for your MAF and cam sensor. Readings should be in the 13.6 to 14.4 volt range.

Since it appears you have a D1, delete this post and start a fresh thread in to D1 section only after clearing all the codes and see what comes back.

Thanks Mike....I'll get the charging system checked out. It is a D2...2003 year model....wasn't the D1 only until 1998? thanks again.

I attend Mar's Hill for 10? years now, I used to volunteer and run the slide show but I have since stopped as it took to much of my time.
Now I just attend with my family and try to help our local missions and affiliate's.
www.thecommon.org
The White Bucket Project Mars Hill - The White Bucket Project
www.20litres.org
Burton Elementary (mentor and donate cloths/coats/gloves/school supplies to the poorest school district in our city, I dont mentor though)

At Mar's Hill we believe that everyone is a worship leader.

Update.....no codes. Seems the 02 sensors were tripping all 17....grateful for a semi-easy fix.