Short term fuel trim & Long term fuel trim
03-05-2003, 02:47 PM
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Short term fuel trim & Long term fuel trim
I was using a scantool and reading the live data of the the engine. What are Long & Short fuel trims ? What should the readings be for a normal operating engine ? 
03-05-2003, 02:49 PM
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Re: Short term fuel trim & Long term fuel trim (mundo)
short term trim is immediate changes made during closed loop
long term is average amount of change that is made over time
long term is average amount of change that is made over time
03-05-2003, 05:00 PM
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Re: Short term fuel trim & Long term fuel trim (mundo)
Here's a some good tech info about short and long term adjustments :
http://www.hondata.com/techclosed.html
http://www.hondata.com/techclosed.html
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