Rich Exhaust

Portuguese translation: exaustão rica

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:Rich Exhaust
Portuguese translation:exaustão rica
Entered by: Lilian Magalhães

23:06 Jun 26, 2018
English to Portuguese translations [PRO]
Tech/Engineering - Engineering (general) / car fault codes
English term or phrase: Rich Exhaust
This is the description of a Code 45 as set on GM products It is an indication of a rich mixture as indicated by the oxygen sensor readings.
Circuit description: The ECM supplies a voltage of about .45 volts between the appropriate terminals of the sensor. (If measured with a ten megohm DVM, this may read as low as .32 volt). The O2 sensor varies the voltage within a range of about one volt, if the exhaust is rich, down thru about .10 volt, if exhaust is lean.
The sensor is like an open circuit and produces no voltage, when it is below about 360 degrees C, 600 degreeF. An open sensor circuit, or a cold sensor, causes Open Loop operation.
Test description:
1.) Code 45 is set when the O2 sensor signal voltage remains above .7 volts for 30 seconds or more and in "closed loop".
2.) Engine time after start is one minute or more.
3.) Throttle position between 2 % and 20 %.

Diagnostic aides:
1.) The code 45 for rich exhaust is most likely caused by one or more of the following:
a. fuel pressure - system will go rich, if pressure is too high. The ECM can compensate for some increase. However, if it gets too high, a code 45 will be set.
b. Leaking injector or rich injector - perform an injector balance test. Check for fuel contamination in the oil..
HEI shielding - an open ground ckt 453 may result in EMI, will result in induced electrical "noise". The ECM looks at this noise as reference pulses. The additional pulses result in a higher than actual engine speed signal. The ECM then delivers too much fuel, causing the system to go rich. The engine tachometer will, also, show higher than actual engine speed, which can help in diagnosing this problem.
d. Canister purge - check for fuel satu
Lilian Magalhães
Brazil
Local time: 08:45
exaustão rica
Explanation:

"exhaust" é uma referência aos exhaust gases, gases de exaustão.

"rich" se refere a uma mistura rica, ou seja, uma mistura em que a proporção de combustível e ar não é a ideal, havendo muito combustível para pouco ar:
https://www.carrodegaragem.com/mistura-rica-mistura-pobre/

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Note added at 38 mins (2018-06-26 23:44:25 GMT)
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Obs.: é um código de diagnóstico, então a tradução tem que ser breve.
Não daria nem para pensar em colocar algo como "gases de exaustão com mistura rica" - o cliente rejeitaria na certa. Não tem espaço para isso, muito provavelmente...

Espero que ajude em algo.
Selected response from:

Matheus Chaud
Brazil
Local time: 08:45
Grading comment
thanks
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +1exaustão rica
Matheus Chaud


  

Answers


36 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
rich exhaust
exaustão rica


Explanation:

"exhaust" é uma referência aos exhaust gases, gases de exaustão.

"rich" se refere a uma mistura rica, ou seja, uma mistura em que a proporção de combustível e ar não é a ideal, havendo muito combustível para pouco ar:
https://www.carrodegaragem.com/mistura-rica-mistura-pobre/

--------------------------------------------------
Note added at 38 mins (2018-06-26 23:44:25 GMT)
--------------------------------------------------

Obs.: é um código de diagnóstico, então a tradução tem que ser breve.
Não daria nem para pensar em colocar algo como "gases de exaustão com mistura rica" - o cliente rejeitaria na certa. Não tem espaço para isso, muito provavelmente...

Espero que ajude em algo.

Matheus Chaud
Brazil
Local time: 08:45
Specializes in field
Native speaker of: Native in PortuguesePortuguese
PRO pts in category: 556
Grading comment
thanks

Peer comments on this answer (and responses from the answerer)
agree  Paulo Gasques
1 day 4 hrs
  -> Obrigado, Paulo!
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