Feilkoder Tahoe 5,3 - emissions og lambda - erfaringer?

[Reex]

Forsto det slik at ditt LPG anlegg er koblet sammen med de originale Lambdaene? Er ikke noe her som driver å fusker da? Overslag, dårlig kontakt osv. Kan forsøke koble fra de fra "gass-hjernen" om jeg husker rett ang anlegget ditt. Mulig det var på sensor  1 (før cat) de var koblet? Husker ikke hva du skrev ang dette tidligere. Tett cat, siden det er på o2 sensor bak cat du får feil på? 

 

Fant denne infoen; 

ossible causes
- Three way catalyst converter Bank 2

- Exhaust tube

- Intake air leaks

- Fuel injectors may be faulty

- Fuel injector leaks

- Spark plugs may be faulty

- Improper ignition timing

- Powertrain Control Module (PCM)
<div style="font-size:12px;"> What does this mean?
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Tech notes
As the code description implies the P0430 code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be replaced to fix the problem. If the P0430 code is combined with other codes, try fixing the other codes first.
<div style="font-size:12px;"> What does this mean?
</div>
When is the code detected?
If a condition exists which causes the Powertrain Control Module (PCM) to detect excessive Bank 2 HO2S #2 activity outside of an acceptable range for an extended period of time, the PCM will set the P0420 code. This indicates that the three-way catalytic converters oxygen storage capacity is below a threshold considered acceptable.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0430 Chevrolet Description

In order to maintain a reasonably low emissions of Hydrocarbons (HC), Carbon Monoxide (CO), and Oxides of Nitrogen (NOx), the engine controls system uses a three-way catalytic converter. The catalyst within the converter promotes a chemical reaction which oxidizes the HC and CO present in the exhaust gas. This reaction converts them into harmless water vapor and Carbon Dioxide. The catalyst also reduces NOx, converting it to Nitrogen. The Powertrain Control Module (PCM) monitors this process using Bank 2 HO2S #2. Bank 2 HO2S #2, located in the exhaust stream past the three-way catalytic converter, produces an output signal which indicates the oxygen storage capacity of the catalyst. This determines the catalysts ability to convert exhaust emissions effectively. If the catalyst is functioning correctly, the Bank 2 HO2S #2 signal will be far less active than that produced by Bank 2 HO2S #1.

 

Så det kan kanskje være katalysatoren.