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afr 20.6
#1 · April 2, 2022, 1:00 pm
hello please help I am using google translate, I am from Spain, I bought fitech 3003 equipment to install on the boat and remove the quadrajet, since I mounted it the afr after 2-3 seconds goes up to 20.6 I looked 3 times together and possible vacuum leaks but All good, I decide to buy a new engine, I reinstall the fitech in the new engine but exactly the same, they tell me again to check the gaskets and the vacuum leak, I checked everything twice, I have a pressure gauge at the inlet and it shows about 40psi, what can I do? ??, how to check if the sensor or the ecu are bad?, thanks
#2 · April 5, 2022, 8:33 pm
Where is your O2 sensor located?
#3 · April 6, 2022, 12:21 pm
Hello, the sensor is located in the exhaust manifold, mounted on an adapter so that it is not in contact with water. Today I have verified again that there are no exhaust leaks, nor vacuum leaks.
#4 · April 6, 2022, 12:27 pm
This is the adapter that I bought from a company in the United States,
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