Prius (2004-09) :: Check Engine Light Coming On And Off / Showing Code P0420 For Catalytic Converter
My check engine light has been coming on and off and it seems to show P0420 for catalytic converter. The light stays off for about a week and it'll come on for a day or two and off again.
Wouldn't a failed converter stay failed? Can P0420 be triggered by loose/bad gas caps?
Golf V R32 :: Check Engine Light On For Catalytic Converter
105,000 miles on my R32, starting to get check engine light for catalytic converter. Any cheaper options to VW originals that won't harm performance?
View 1 RepliesHonda - Cr-v :: Check Engine Light On - Faulty Catalytic Converter
The check engine light on our 2005 Honda CRV (146,000 miles) came on and stayed on. After a week of driving with the light on we brought the car to the dealer to have it checked. The dealer diagosed a faulty catalytic converter given a P0402 diagnostic code and didn't think the P1078 code for the intake manifold a problem. The dealer also stated that the oxygen sensors were fine. We declined the dealers offer to replace the catalytic converter for $2,170 and the check engine light was reset. After two weeks of daily drifting and 1000 plus miles the engine light is still off. Did we actually have a problem? Why hasn't the light come on again?
View 8 RepliesNissan - Sentra :: 2002 - Check Engine Light On / Catalytic Converter?
I live in CA and recently my car passed the smog test, but failed inspection because the check engine light on the board was on. When the diagnostic test was done, it said there's a problem with the catalytic converter. It's so frustrating because the car's emissions are within limits. , I was thinking... Is there a way to get the catalytic converter to run cleaner without replacing it? If it can run long enough to pass the diagnostic test, my car could pass inspection.
View 3 RepliesToyota - Camry :: Check Engine Light Came On - Failed Catalytic Converter
I had my local garage do their electronic check when my check engine light came on. They said the code they got indicated a failed catalytic converter and quoted me $720.00 for a California compliant replacement, including labor. I live in Connecticut. I'd like to take a few days to get a second opinion and second quote, but the garage manager said that driving it in this condition would risk fouling the oxygen sensor, which I recently replaced for a couple hundred bucks.
Should I be concerned about fouling the oxygen sensor by continuing to drive the car? 2000 Toyota Camry...
I looked under the car and the rear attachment bolts to the converter are rusted beyond recognition. I'm tempted to try replacing it myself but it may be a bit beyond my skills.
Prius (2004-09) :: Check Engine Light On / Catalytic Converter Failed
I just moved to Colorado with my 2009 Prius and on the fifth day here the check engine light went on and the dealership said my catalytic converter failed. Luckily I was still under warranty. Is this related to the altitude or just a coincidence?
View 3 RepliesSebring - Chrysler :: Check Engine Light Is On / RPM Too High While Driving
I have a 2004 Sebring my check engine light is on and the RMP's are really high while Im driving. What could be going on?
View 11 RepliesToyota - Prius :: Check Engine Light Has Been Coming On - Catalytic Converter Need Replacement
My wife's car is a 2002 Prius, 149 k miles. Lately the check engine light has been coming on. I took it to the dealership, and their assessment is that the catalytic converter needs to be replaced. They are recommending about $2,000 + of repairs. While I am contemplating the practicality of investing that much in keeping this car going I'm wondering if it harmful or dangerous to continue operating this vehicle.
View 12 RepliesTouareg :: Check Engine Light Is Popping Up Because Catalytic Converter Is Sending Error
My car is in the garage, been having a bunch of issues with the check engine light. This is my current problem, Check Engine light is popping up because the catalytic converter is sending an error. However, there is nothing wrong with the converter, it keeps sending the same error. My car has been in the shop for exhaust issues and valve problems, but this has got them stumped.
View 24 RepliesChrysler - Sebring :: 2002 - Check Engine Light Came Driving Down The Highway At About 70 MPH
I drive a 2002 Chrysler Sebring convertible with about 130,000 miles on it.
I was driving down the highway in early November when the check engine light came on my car. I took it to Aamco who did some diagnosis and replaced a solenoid assembly in the transmission. The light went off and I was on my way. I never got the exact code.
About a month after that, the light came on again. This time, I got a low end code reader and scanned it myself. I got a "P0700" code, which I've read is a generic code that the transmission system sends to the computer or something. So I used my reader to erase it. However, the light came on 2 days later while I was driving down the highway at about 70 MPH.
So I went to an auto parts store to get a more detailed scan with a better tool. This one came up "P0740 Torque Converter Clutch Solenoid Circuit".
This feels weird, because the solenoid assembly was just replaced a month ago (and is still under warranty).
The car seems to drive okay. I don't notice any actual problems in shifting. The tachometer seemed to get up to about 3000 RPM on the highway. But I've seen practically new cars do that. The last time I had serious transmission problem it would rev up to about 5000 or 6000 RPM on the highway and still only getting up to about 40 MPH. That was 3 years ago and at the time I had a fairly expensive transmission repair (which included a new torque converter).
But like I said, the car seems to be driving okay. I don't drive much. Maybe 100 miles a week? And even that is mostly optional in town driving. I'm not looking to keep this car for more than another 20,000 to 25,000 miles though for the time being I cannot afford a new one.
What are the possible causes here? What are the consequences of ignoring this? Like I said, it's still driving fine and as the old saying goes "if it's not broke, don't fix it".
Ford F-150 (2004-2008) :: 2005 - Catalytic Converter Rattling On Driver Side And Check Engine Light Is On
My cat converter is rattling on driver's side and check engine light is on. Rattle is the inside of the converter, not the heat shield. How much $ and what kind of converter replacement is recommended?
View 10 RepliesChrysler - Towncountry :: Check Engine Light Comes On / Code P0404 - Clogged EGR Valve
2007 Chrysler Town & Country with 74K. The check engine light comes on and the parts store diagnostic says P0404, a clogged EGR valve. On my model, replacing the EGR valve involves taking out the alternator, which involves removing the passenger wheel. That's beyond my skill set.
So, can I just replace the EGR tube and pour some Sea Foam motor treatment directly into the EGR? Would that hurt anything?
Ford - Mountaineer :: 1997 - ABS Always On / Engine Light Comes On Occasionally With A Catalytic Converter Fault
The wife's 1997 Mountaineer, 5.0 with all the bells and whistles, Every time she stops, wet, dry, snow, any type of surface, the ABS brakes activate just as she comes to a stop. Heavy pressure, light pressure, doesn't matter. She says it sounds like a cow mooo-ing. 138,000 miles. New pads and rotors were installed 40K miles ago (about 3 years ago) she doesn't drive much but the noise is aggravating. No check engine light, or ABS light. Seems to come on when it gets below 10mph consistently. The Engine light comes on occasionally with a catalytic converter fault, replaced the converters but still get the light. I don't think it is related.
View 9 RepliesChrysler Sebring :: 2006 - Whine From Engine And Intermittent Battery Light
About a week or two ago, when driving home, my battery light flicked on while at a stop light. Also, as the light wen t green and I accelerated away, I noticed a kind of 'whine' from the engine, like a turbine spinning up. By the time I got home it was fine again and the light out, and has been until today, when it happened again...I noticed that it happens if I have the AC on and I'm at a stop. If I turn off the AC when waiting at traffic lights, that seems to eliminate the battery light, but I still here the whine.
View 4 RepliesSebring - Chrysler :: Rough Idle And Engine Light Comes On / Codes Read Misfires On 1, 3 And 5 Cylinders
I have a 2006 Chrysler Sebring Convertible 2.7L engine. Replaced water pump and spark plugs. We triple checked the alignment on the chain and are sure the timing is fine. Car started right up. Now running rough idle and engine light comes on. Codes read misfires on 1, 3, and 5 cylinders.
View 8 RepliesNissan - Maxima :: PO430 Catalytic Converter Code
My 2000 Nissan Maxima has a PO430 code for the catalytic converter that has been going on and off for over 1 year now. My ? is, how would I know that the converter needs replacing? Someone said there wouldn't be any smell necessarily, someone else said I would be leaking qts. of oil in between changes and someone else said it would get bad mileage. Each one debunks the others comments etc. Also just for info., this car had the ses light come on at 57K miles, my brother replaced 2 of the O2 sensors and I replaced 2 also, one duplicate one and a mass air flow as well.
View 1 RepliesGolf VI R :: 2009 TDI - P0420 Catalytic Converter Code
Does this mean the DPF is shot? I believe its integral with the cat. whats worth checking first?
View 2 RepliesToyota - 4runner :: 1996 - Getting Catalytic Converter 420 Code?
1996 4runner here (187,500miles), with weld in after market cat (on when purchased, with less than 1000 mile on it). started throwing the 420 code beginning of last summer. Replaced both O2 sensors and same results. Was coming on after every 30-40 miles after resetting, replaced wires, plugs, cleaned throttle body started coming on ever 120 miles or so. Now in the middle of winter it has gone 450 miles and still has not come back on?? Does the winter fuel blends in Georgia, or cold more dense air make a difference on cat performance? Still plan to replace it with a direct fit with a warranty but curious if I am overlooking something.
View 6 RepliesPassat (B6) :: CEL Code P0430 Catalytic Converter Related
It came on 2-3 miles after a cold start. 3.6 with 137,000 miles. What's next? First car I've owned that uses very little oil between oil changes.
View 1 Replies