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p0420

  1. Can a bad DIC drain your battery?

    9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
    Hey guys, got codes P0340, and P0420 and also an incredibly battery drain again. Problem: Car dies over night.. Question: Can a bad DIC drain my battery? Small overview: Had a drain problem before, it was the Amp and my AC compressor. Bypassed the amp, and replaced my AC compressor, all was...
  2. code P0134

    9-5 Workshop
    Car is my wife's 2003 Aero. We are getting a code P0134 consistently. I delete the code and it comes back every day. I have cleaned the connector to O2 sensor #2. Nothing....keeps coming back. I replaced the sensor with a new one, a Delphi sensor that is plug compatible. Still getting the...
  3. Need help on Error codes p0420 and p1304 ,

    9-5 Workshop
    Hello Everyone! A short version of a long 5 month's story is: Since June 2013, my Saab 95 Aero '06 started to throw P0420 codes, which was generated by a clogged turbo and a worn out CAT, , as the service informed me. Since then the Cat and both O2 sensors were changed, turbo rebuilt, but...
  4. P0420, Sluggish, Bad MPG's on 2002 Arc

    9-5 Workshop
    Hello, I wanted to get the community opinion on what course of action I should take. Recently I have been receiving the CEL P0420 code, indicating 'Catalyst System Efficiency Below Threshold (Bank 1)'. The car appears to be more sluggish than usual, even after I clear the code using my OBD...
  5. 2001 Saab 95 Engine Codes P0455, P0420 and P1230

    9-5 Workshop
    Ok on my 2001 Saab 95 I have been getting P0455 and P0420 since last month or so, I replaced the Gas Cap, 2 times already since I have been getting the code P0455 and Cleared the codes with OBD2 several times, but they keep coming back after I drive about 100 miles, so I kept driving it as is...
  6. White Smoke & 2 Bad Catalytic Converters

    9-5 Workshop
    Hello, I'm wondering if someone can confirm whether this is accurate or not. I recently got the dreaded P0420 reading when the engine light came on. I took the car (2002 Saab 9-5 Arc) to the shop and they performed some tests on it. It has just over 129,XXX miles. They said that they think the...
  7. P0420 Catalyst Efficiency Below Threshold (Bank 1) - 2002 Saab 9-5 Arc

    9-5 Workshop
    Hi Everyone, I have a quick question for you all but unfortunately I will need to explain the history of this car first. Please bear with me! I purchased this car two weeks ago with 129,XXX miles. It is in great condition and drives beautifully. I immediately had a timing belt change (along...
  8. codes P1805 and P0420

    9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
    Ok SAABer's, here is the situation, i just completed the fuel sensor level swap (including Dropping the tank) in my '03 9-3SS 2.0t friday and saturday 6/15 & 6/16 and completed everything in 18 hours. Now im getting a CEL and when i read my OBDII with my reader it comes up with P1805 and P0420...
  9. Aero Headache!!

    9-5 Workshop
    Hey all ive been working on my 00' 9-5 Aero in the garage. Its been running extremely lean and has no power, no turbo boost and wont rev the engine over 2,000. The power loss makes it so i am unable to go up hills or drive over 40 mph. Checked TB for LHM. The only codes it has thrown are the...
  10. 2001 9-5 SE....P0420 code....need some advice

    9-5 Workshop
    Hey guys....last spring I picked up a used 2001 Saab 9-5 SE with approx. 110,000 miles. I got it for a decent price considering that it needed some slight TLC. However, the car ran extremely well with absolutely no issues. A couple of days after the purchase, the CEL came on for the P0420 code...
  11. List of problems and questions

    9-5 Workshop
    I bought a new-to-me used 2001 9-5 SE V6 Wagon. I have been looking over these posts for some time and mine wants to have uniqueness with its problems. Let's begin: 1) Engine light on with code P 0420 My guess is catalytic converter or O2 sensor. Tomorrow I am picking up an O2 sensor and...
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