Question about Suzuki Forenza

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Meineke Put my car on a computer and the code P0420 came indicating my cattaletic covertor is bad. so I call Napalton , car dealer ship. and they told me I had to pay them 99$ so they can put this same diagnostic machine that takes 2 seconds . to see if it comes out the same. they tell me that in order for me to get a new convertor it has to come from a Chrysler diagnostic machine . If it is a computer that all sevis places use . and I have already had it done do I have to bring it to them or can any one fix it for me . as well as another place did a diegnostic test too and came up same thing. Please help can you let me know . don't have the money to pay them when I all ready know what the problem is. my car is 6yrs old and JUST turn 60,000 miles thats when check engine light came one. Cathy

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You should be able to take this to any mechanic you so chose if the code is right tell them and this is what it means
As mentioned above, the code's description is Catalyst System Efficiency Below Threshold (Bank 1). OK, now tell me that again in plain English please.... let's break it down: the catalyst system being referred to is your three-way catalytic converter; so the catalytic converter is not working properly (i.e. it's not efficient). Bank 1 refers to the side of the engine which contains cylinder #1. On inline engines such as 4 & 5 cylinder engines, there is only one bank. So, to really simply things let's just say that the efficiency of the catalytic converter and/or exhaust pipe and/or O2 sensor is not so great.

Posted on Mar 25, 2011


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Feel free to contact us if you need additional details to volve it clicking the link.

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Cod p0420

P0420 is a catalytic converter inefficiency code. Basically the cars computer is looking at the rear O2 sensor to monitor the catalytic converters ability to properly reduce emissions. If the computer sees the rear O2 sensor acting differently than normal it interprets this as the cat no longer able to do its job and turns on the check engine light to make you aware there is an issue. There are a few things that can cause this to happen. The most common is that the catalytic converter has gone bad and needs to be replaced. The good news is the federal emissions warranty on these is typically 8 years or 80,000 miles. Sometimes longer if the manufacturer chooses. If you fall into this guideline call you local dealer and see if you are covered. If you are you will be able to have this replaced at no charge. The bad news is if you are not covered than you will have to pay for it out of your pocket and they are not necessarily cheap. Do not go with anything but either the o.e. cat or a direct fit from a put able supplier. Anything other than these two options will leave you with more problems than they solve. Let me know if you have any questions and I'll do my best to answer them. Thank you for using!

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