A/F ratio spike on deceleration normal?
07-07-2010, 01:29 AM
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A/F ratio spike on deceleration normal?
I noticed that as soon as my engine is slowing down my drivetrain, for example if I put it in 6th gear to help out my breaks on a steep decent, my A/F ratio spikes. Is that normal?
07-07-2010, 01:56 AM
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When you say spike, it goes up or down? By how much?
07-07-2010, 02:43 AM
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Normal. When your in gear off throttle the engine is just puming air without fuel.
07-07-2010, 02:45 AM
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Quote:
Originally Posted by
Ziggyrama
When you say spike, it goes up or down? By how much?
it maxes out at 17. I have an AEM wideband.
Quote:
Originally Posted by
0jiggy0
Normal. When your in gear off throttle the engine is just puming air without fuel.
Thanks
Last edited by Synjn; 07-07-2010 at 02:47 AM .
07-07-2010, 05:32 AM
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07-07-2010, 05:39 AM
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Normal, injectors almost turn off when decelerating (engine braking)
07-07-2010, 05:52 AM
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Yeah that's perfectly normal. If it makes you feel any better when my friend lets off the throttle in his srt-4, his a/f ratio spikes up to 20.
07-07-2010, 06:42 AM
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If you have the Innovate it will likely show 22.2 AF on engine braking
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07-07-2010, 01:29 AM
A/F ratio spike on deceleration normal?
