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Old 02-10-2007, 03:40 PM   #136 (permalink)
keithmac
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Join Date: Sep 2006
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Default Re: Lean Misfires at 2700-2800 rpm

Hopefully I`ll have something to report tomorrow or Monday, using that table you can pick out the trend to where the ECU goes into closed loop operation, which is where you don`t want to make any real alterations as that`ll knock the trims out.

I think I`m going to try doing a 360 to 440 or 430 change in the Emanage, this`ll give me a slightly rich condition and then I`ll see how the ecu trims it out and what happens elsewhere as a result.

For the OBD1 cars, maybe raising fuel pressure slightly will bump the AFR`s up across the board, leave the trims to cut fuel where necessary - but full load may end up being too rich..
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