schematics and diagrams: faulty catalytic converter

Wednesday, June 6, 2012

1998 GMC K1500: OBD Error Code P0430?

Check Engine light came ON and Engine computer Scan shows OBD error code P0430.

In many cases its noticed that user replace O2 sensor to clear this code.But hold its not a faulty O2 sensor error code.

Its catalytic converter related error code.

The P0430 is a fairly straight forward code pointing to a failing Catalytic Converter (in this case, the converter for Bank #2).
Read this theory to understand the working procedure:------
This will help you to understand,why catalytic converter needs to be inspected and replaced.
The Oxygen Sensors measure the amount of emissions in the exhaust going into, and then out of the covnerter. When they see the converter is not "cleaning" the exhaust enough to meet specs, the converter is deemed "below threshold", the P0430 is set, and most commonly, the converter will need to be replaced. Keep in mind, you will need a converter that meets GM specs, and those "universal" or "discount" converters will not cure the problem.
The Aftermarket parts will not meet the accurate requirement of the vehicles system.

See the parts location diagram shown below for Bank 2 Catalytic converter:-----

This details will help.
Thanks.

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Sunday, November 6, 2011

Ford F150 sputters and bogs down upon acceleration?

This is common problem faced due to many possibilities.The most common possibilities for this problem are

Dirty fuel filter.

Worn out coil wires or faulty spark plugs.

Low fuel pressure.

Problem with catalytic converters.
First this possibilities needs to be checked and inspected.
If all this checked ok, then
It could be a dirty MAF sensor. Clean MAF sensor wire with brake cleaner. The MAF sensor is located near the air filter element. The wires are exposed to the air flow to the engine. Unplug battery for 15 minutes to rest PCM and road test for any changes.The MAF sensor is near the air cleaner box.

It is possible that you have a fuel delivery problem. You will need to check the fuel pressure with a gauge and hose long enough to drive and watch what the fuel pressure is doing especially under a load.Could be a bad fuel filter or even a weak faulty fuel pump. If that is the case, try replacing fuel filter first, if that doesn't work replace fuel pump.

Thanks