CEAZERKHAN Posted April 26, 2023 Report Share Posted April 26, 2023 Recently got a datsun 810, 2 door auto. Its a fuel injected car and its running rich, im not sure how to adjust it. Quote Link to comment
Skib Posted April 26, 2023 Report Share Posted April 26, 2023 The EFI is more or less controlled by the AFM, the temp sensor and 02 sensor. If the temp sensor or 02 are not working it will run rich, especially the temp sensor. 1 Quote Link to comment
datzenmike Posted April 26, 2023 Report Share Posted April 26, 2023 02 failure An over lean condition can damage your engine so it defaults to a slightly over rich. Presumably the owner will notice this and correct it. Temp sensor (not the temp sender for the gauge) Engine EFI will assume the engine is cold and run slightly rich for the warm up 1 Quote Link to comment
Skib Posted April 28, 2023 Report Share Posted April 28, 2023 There's a single wire temp sensor for the gauge. and a 2 wire plug sensor for the ECU that looks like so. Quote Link to comment
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