Search Results for ‘catalyst’

Hello all, first post here. I recently picked up a 1.8t manual Passat and I’m having some issues. It’s throwing the P0299 code for underboost, as well as a P0420 and P0411. Definitely low boost as it’s sluggish and feels like it’s surging. Any of you more experienced Volkswagen guys know what...

My 2002 V6 ATQ (191K 29MPG Highway 23 City) was due for state inspection so I needed to come up with a fix for my P0421 P0431 CEL codes. I planned to replace both rear O2 sensors, but first wanted to be sure this wasn't due to poor combustion performance or an exhaust leak. So I put 1 bottle...

I have been getting this code for the past few days now. I clear it and it comes back in a day or two. Is it saying I need new Catalytic Converters? I'm not quite sure what to do with this. And I've noticed when I have the OBDII plugged in my coolant reaches like 220-224 degrees. Is that too...

Hi guys, I got a check engine light with P0421 again. For once I didn't get it for my secondary air system. However, I got an evap code (large leak) guess what? The wawa I got gas at didn't freaking put my gas cap back on and I lost it when she said we throw them out just get a new on at walmart...

2001.5 Passat 1.8T Finally thought I was going to be fault free...NOT... Ok car had misfires and was running lean. Replaced vacuum lines, cleaned throttle body (reset it), replaced MAF & O2 sensors & coolant temp sensor-2.0 coil pack conversion & new plugs. Car ran fine for about 60 miles...

2002 Passat 1.8T AWM with 166,720 miles. I do my own oil changes with Mobile1 or Castrol full synthetic every 5000 miles, never overfilled. No misfires, car is properly maintained. No drop in mileage. Get 28 hwy, 20-24 city. There is a VCG leak that I haven't had the time to tend to...

Hello All, Back to PW after a long gap. I am looking for some help with P0422 (Main Catalyst: Bank 1: Efficiency Below Threshold ) DTC on my B5. I have also intermittently had P0130 (Oxygen (Lambda) Sensor B1 S1: Malfunction in Circuit) and the SAIP DTC (don't remember the code). I am due for...

Good morning all, Need some input on the following error code I have on my 99 GLX v6. I found other references to this error but with a different description. First the code: P0432 - Main Catalyst Efficiency Belo Threshold (bank2) History: Last year I had my mechanic fix a broken flex pipe...

I'm starting to troubleshoot my Catalyst efficiency codes, and came upon a snag. I don't appear to have a post catalyst O2 sensor - I was wondering if this is normal for this vehicle.

So I finally got the oil leak and water leak fixed on my passat, ran me 200$, not bad I guess but the car feels utterly slow to responce.. It isn't the MAF or apparently any sensor, the VW specialist told me that the ABS computer needed to be replaced because it was dead and wouldn't let him...

My CAT is clogged so I decided to order one, and have a local exhaust shop install it. The mechanic checked under the hood and showed me a note in the engine bay that reads: "....This vehicle conforms to U.S. EPA NLEV regulations applicable to gasoline fueled 1999 model year new TLEV passenger...

Hello all, My car(2000, V6, ATQ engine) at 238000km is flashing the MIL light with the following codes: 6805 - Warm Up Catalyst: Bank 1: Efficiency Below Threshold P0421 - 35-10 - - - Intermittent 16815 - Warm Up Catalyst: Bank 2: Efficiency Below Threshold P0431 -...

Hi, My 2nd time posting here. I finally got a VAG tester and was able to pull the error from my 2001 V8 passat. I get the CEL light. I got the following: 17584 . Bank1 : O2S (Lambda) Correction Behind Catalyst: Control Limit Reached. I know there are 4 sensor but don't exactly which one I...

So, I've had a CEL for the past year or so, and scanning for codes would give "Warm Up Catalyst: Bank 1/2: Efficiency Below Threshold" - Intermittent. I figured I just needed the updated ECU flash that addresses this particular issue, and didn't think anything more about it. Haven't gone for...

I have a 05 passat 1.8T. Have had quite a few problems and have been able to fix most of them. For me the probelm is not fixing them..it's the diagnosis. I have codes P0402. Catalyst lean bank 1. The catalyst sounds like a bunch of marbles in a metal box. The one issue I seem to have that I...

I have a 05 passat 1.8T. Have had quite a few problems and have been able to fix most of them. For me the probelm is not fixing them..it's the diagnosis. I have codes P0402. Catalyst lean bank 1. The catalyst sounds like a bunch of marbles in a metal box. The one issue I seem to have that I...

P0421 Warm Up Catalyst Efficiency Below Threshold Bank 1 P0431 Warm Up Catalyst Efficiency Below Threshold Bank 2 This is probably the better area to post this in. Any ideas on what to do about this puppy? no other codes

P0421 Warm Up Catalyst Efficiency Below Threshold Bank 1 P0431 Warm Up Catalyst Efficiency Below Threshold Bank 2 Ideas I was thinking of going the spark plug defouler route but im not sure if that will do anything is this the thing were i need to get my ecu flashed?

Hey all, '98 V6 engine here. I didn't get many replies in the following thread, which has more detail. Please take a quick look--I've basically ruled out the SAIP: http://www.passatworld.com/forums/showthread.php?t=301222&highlight=catalyst Now that I have a VAG-com, the only code I'm showing...

Hi, I have a 2002 Passat GLX V6 Wagon 4motion. It's coming up to 120,000 miles soon. This week I got a CEL and I took the car to Advance Auto Parts and they said the error is "Warm Up Catalyst Efficiency Below Threshold". Now I have no idea what this error means so I did some Googling and on one...