Short term fuel trim & Long term fuel trim

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Mar 5, 2003 | 02:47 PM

mundo

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From: Houston, Texas, us

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 ?

Mar 5, 2003 | 02:49 PM

sgT

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From: WI

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

Mar 5, 2003 | 03:18 PM

mundo

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Re: Short term fuel trim & Long term fuel trim (mundo)

what about the readings

Mar 5, 2003 | 03:19 PM

mundo

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Re: Short term fuel trim & Long term fuel trim (mundo)

Running rich, lean, etc..?

Mar 5, 2003 | 05:00 PM

boostaholic

Joined: Dec 2001

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From: Louisiana

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

Mar 6, 2003 | 02:33 PM

mundo

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From: Houston, Texas, us

Re: Short term fuel trim & Long term fuel trim (mundo)

Thanks

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