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Auto repair question re: mechanic diagnostic
Posted on 1/2/15 at 8:09 pm
Posted on 1/2/15 at 8:09 pm
I failed emissions. I know the obd code (p0421) and the listed reasons for the obd code for my make. If I take it to a mechanic, dealer or otherwise, and pay for a diagnostics, will they tell me anything more specific than the obd code and potential causes publishes for the obd code?
I don't want to pay $115 for them to just tell me what the obd code "usually" means.
I don't want to pay $115 for them to just tell me what the obd code "usually" means.
Posted on 1/2/15 at 8:10 pm to ferrarifacias
I think that you can just put some STP in the gas and it will be fine.
Posted on 1/2/15 at 8:45 pm to ferrarifacias
IIRC, that's either an o2 sensor or bad cat. How many miles do you have?
Posted on 1/2/15 at 9:09 pm to ferrarifacias
had same problem on my truck took it to get inspected told me emmissions were bad. took it to place in addis cant remember name but told dude look man give me an inspection sticker he hookd me up thats your best bet is to find someone to give you a sticker otherwise mechanics gonna rape you i don't trust them its a racket
Posted on 1/2/15 at 9:28 pm to djangochained
Is it better to be the worst troll poster or the best troll poster?
Posted on 1/2/15 at 9:41 pm to Hammertime
Changed both 02 sensors. 138000 miles. Pretty sure it's the cat because the 02 sensor volTage on the rear is flucutting as much as the front sensor.
Posted on 1/2/15 at 11:05 pm to ferrarifacias
You can get an aftermarket cat for cheap and have an exhaust shop weld it on for you.
I'd just go to another place though
I'd just go to another place though
Posted on 1/2/15 at 11:13 pm to ferrarifacias
Have you taken it somewhere like autozone to let them dump the codes? They may be able to tell you something more specific....
Posted on 1/3/15 at 12:43 am to ferrarifacias
Bank 2 catalyst efficiency below threshold. You are dead on if the downstream switch as much as the the upstream then it has failed and will need to be replaced.
On another note, aftermarket cats are much cheaper but also much worse at their job.
What kind of car is it?
On another note, aftermarket cats are much cheaper but also much worse at their job.
What kind of car is it?
This post was edited on 1/3/15 at 1:01 am
Posted on 1/3/15 at 2:42 am to Traffic Circle
quote:all shite, I just hit the buy key on Amazon for a case of STP - you dirty rat.
Is it better to be the worst troll poster or the best troll poster?
Posted on 1/3/15 at 7:25 am to tt54l32v
quote:
Changed both 02 sensors. 138000 miles. Pretty sure it's the cat because the 02 sensor volTage on the rear is flucutting as much as the front sensor.
quote:
Bank 2 catalyst efficiency below threshold. You are dead on if the downstream switch as much as the the upstream then it has failed and will need to be replaced.
Yep
Posted on 1/3/15 at 9:38 am to tt54l32v
2006 Mitsubishi Lancer. Im only keeping it for about 6-7 months, so just need one good enough to pass inspection, not one that will last long term.
Posted on 1/4/15 at 12:34 am to ferrarifacias
Get it changed, run it around a week or 2 and make sure it will pass emissions and then park it if you can.
This post was edited on 1/4/15 at 12:35 am
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