Just read that a clogged EGR valve is common and reduced performance and increases emissions. Need to clean this valve? Where is it located?? Just noticed tonight that there is not a lot of suction from my vacuum lines and I wondered if this is related. Plus I have a p0430.
View 3 RepliesReplaced my post cat drivers side O2 sensor tonight because I was getting zero voltage and a p0430 code. This is bank 2 sensor 1.
But I'm still reading zero voltage!! How could I still be getting zero voltage?? I checked the connections and they are firm. Checked every single fuse in car.
After my recent accident, the center console lights don't illuminate. My nav door doesn't close too. Could these all be related?? The connector for the O2 sensor is right next to the console, so maybe there is a loose connection or plug or perhaps a stray ground?? I do have wires all over the place in under the shifter bezel from aftermarket stuff..
Replace this when they got a code p0440? If so, which way did you go about replacing? if so, did u have to drop the tank or from cutting from underneath the seat? Is this the same location as from the 1st gen is300?
View 12 Replies2007 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?
My car is running great, no issues. I just changed the ignition coils, i was having a misfire. It was easier since i was changing the back to replace them all. My CEL and VSC went on and it is code P0430 bank 2. Before i spend a ton on a new catalytic converter i would like to change the o2 sensors. Problem is, I am not sure which ones to change or where to start. Is this even something i am able to do?
View 2 RepliesSO all three lights came on and wouldn't go away.
Ran a scanner for code and got p0430.
Took it dealership for estimate or fix.
Go figure : code summary: Causes.
Reported fixes or Causes: for code p0430
- catalytic converter has failed.
- Air fuel ratio sensor
- Bank 2 cat converter
- Bank 2 (A/F) ratio sensor
- Oxygen 02 sensor
- downstream Oxygen 02 sensor
- Exhaust pipe
- Mass Air flow sensor
So I am waiting thinking ok let be one of the above causes or fixes that is cheap.
[URL] ..... I had the P0430 code come up in my 06 GS300 AWD so i changed both passenger side 02 sensors. i followed the above instructions on changing the pre-cat sensor, changed my 02 sensor plugged everything back up and the P/S light came on and i lost power steering. I unplugged and checked everything at least 10 times until i finally gave up and gave it to lexus today. been about a week though driving without power steering. I know I did everything right and plugged everything snug. Did my P/S just decide to die?
View 6 RepliesI got a P0430 code. My fuel trims are over 20% on both banks. A few days back I got a P0174 code but after disconnecting the battery it cleared and hasn't come back. Are these codes related in any way?
I'm a bit confused because I removed both cats and put O2 spacers in on both sides. I never get a P0420 code. Is one of the spacers not working correctly? I sent Toyota an email about the 430 code and they want to know which of the cats were removed - front or back. I didn't even there were front AND back ones! I thought there were just 2 side by side.
When I analyze the O2 readings on Torque they look pretty similar for both banks although I admit I'm not the best person to judge. Both rear O2 sensors are fairly new.
Unfortunately living in the middle of Africa I can't get hold of a smoke machine. I'd love to look for a vacuum leak, as from what I've read about the subject this might well be the cause of my problems.
One mechanic wants to put a new fuel pump in but I'd like to postpone that because it's a pricey item.
I finally got some time yesterday and put Seafoam into my PCV valve to clean the injectors. I also replaced the PCV valve. My car seems to have more power!
View 9 RepliesHow to replace valve cover gaskets on 2002 430sc???
View 14 RepliesMy water drain valve in my gas cap isn't draining and must be clogged or something. I tried sticking a paper clip down it but that didn't do it. How to unclog this or get to it?
View 4 RepliesMy car is in the shop and has a leak at the Power Steering Pump. The rubber O-ring on the Power Steering Pump Solenoid Valve (p/n 4417030120) is leaking fluid. The Solenoid Valve is ok, just the Rubber O-ring is bad, but it looks like you have to buy a complete new Solenoid Valve to get the O-ring (a lotta bucks).
I did find a Lexus Power Steering Pump rebuild kit online at, but I can't see if it includes the solenoid valve o-ring or not. Have to replace their solenoid valve o-ring?
95 corolla 250K miles. CEL light on for 7 years or so at 150K miles. Dealer said clogged EGR valve.
I didn't get it fixed as car was already old at the time.
Is it worth fixing now? Or has the damage already been done or not done?
The car almost never pings, mostly highway driven.
Mechanic said even if you just replace the valve (which costs hundreds) it could still necessitate cleaning passages and such and could cost more.
I wondered if it is just possible to "clean not replace" but he said there's no guarantee it can just be cleaned and even so, cleaning alone can cost hundreds if it's all gunked up.
My 2001 6cyl 4x4 Xterra is a clogged gas tank vent solenoid, or as it is called now a "Vapor Canister Vent Valve". For the last 2 or 3 years, very infrequently, the vehicle turns completely off while decelerating (sometimes at very fast speeds so I have learned to be calm and put the car in N and turn the key and keep going with the flow so to speak). It also, either during a stop in idle or accelerating very slowly and steadily, makes popping sounds directly under the left back seat--which is where the gas tank is located. It sounds like the tank (or a metal can if you will) is being sucked in until it gives making the popping/banging sound against the car (underneath).
The other issue this problem seems to be linked to is the engine light coming on when the tank pops. I have had that diagnosed too, and it just reads "engine knock sensor". My previous wonderful mechanic, who moved about 30 states away, is no longer available but he did tell me it sounds like a blocked or clogged gas tank vent solenoid. He also said it's not a big problem per se, but at some point I should probably replace it. Sometimes there are 6 months that go by with no popping, stalling, or engine light coming on. So maybe 'bad gasoline' also plays into this issue?? I did an internet search recently and found a replacement part called a vapor canister vent valve. My question is how easy or hard is this thing to replace? Can it simply be 'blown out' with an air hose, or otherwise 'cleaned' instead of replacing it. The only thing scarier for me to fix than home electrical wires would be anything dealing with GAS.
My 2009 Camry came down with the p0157 code which I looked up & is oxygen sensor circuit, low voltage bank 2 sensor 2. I'm trying to figure out which side this is(driver or passenger)? Also have a p0430 code-catalyst system efficiency below threshold.
View 2 RepliesMy CEL came on and is throwing code P0430. Is it just an o2 sensor? if so which one primary or secondary?
View 2 RepliesI recently purchased a used, high mileage 2004 Infiniti G35x (AWD) 145K miles from a reputable new car dealer here in my town. The car was impeccably maintained and clean inside and out. Just a week or two after the purchase my SES light came on revealing engine Code: P0430 (catalyst efficiency below threshold bank 2) pointing to a new catalytic converter in my future. Infiniti recommends premium unleaded for this vehicle. I found out my son filled her up with mid-grade unleaded. Is there any chance this could have triggered the SES light to come on? (Previous owner states he always used premium unleaded in the vehicle since ownership.) I also double checked the gas cap to make sure it was on tight. I find it extremely odd that the SES light would come on so shortly after the purchase. I mean what are the odds? Don't dealers run a diagnostic scan of their trade-ins to check history and for potential problems prior to selling their used cars? I test drove this car numerous times without any indication of a problem and right on the heels of the purchase it passed state emissions... now just a few days later, the SES light comes on. Why wouldn't emissions pick that up? I have reset the SES light (code) and filled her up with premium unleaded. Now it's a waiting game to see if the light comes on again. If the light reappears, I plan on taking it back to the dealer to work out some kind of "reasonable solution" to repair costs. I'll find out just how willing he is to stand behind his cars. I realize that this is a high mileage car, and I hardly expect perfection, but I didn't see this coming. What to do... what to do... By the way, I checked all the fluid levels ... no discoloration in the oil (fresh, golden brown)... no discoloration in the coolant... transmission fluid, good... all other levels are good. Car runs fine, no rough idle in cold...
View 11 RepliesI have a 2005 Santa Fe with the 2.7l engine....during the last two summers I've had this code pop up only to disappear. Well, we're into the winter here in New York and the code popped up again and after a week its still on. What's causing this and are there any easy fixes? The wife loves the SUV, its got 120,000 miles on her, the engine is strong and the tranny was rebuilt this summer (that another story).
View 1 RepliesI have a check engine light for the Evap. the code there is a hose that comes off and you get the code. I have looked high and low for this hose, where actually this hose is or put a picture up so I can find it.
View 7 Replies05 santa fe/3.5L/ owned since new. Had a misfire problem and solved that by changing coils/plugs/wires...
Still getting a P0430 code (bank 2 cat efficiency low)
Following the Repair manual troubleshooting of that code says
Read H02S - got a scan tool and did that -
Comparing Bank 1 H02S1 and 2 show they are are different voltages and do not follow.
Comparing Bank 2 H02S1 and 2 show nearly identical traces.
I also checked the wiring harness around the sensors and check for air leaks...couldn't hear/see/feel any.
My conclusion based on the info obtained is that the bank 2 cat is bad and needs to be replaced.
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