MY98. Stock DV vent to air?
16 November 2010, 12:31 PM
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I have recently installed a Hybrid FMIC. When the dump valve opens, after decreasing throttle input, I get a strange "surging" acceleration when I reapply throttle.
My theory is that the increased amount of air returned by the dump valve (due to the FMIC piping) upsets the air flow meter. If my theory holds true, the problem will disappear when venting the return to atmosphere
My theory is that the increased amount of air returned by the dump valve (due to the FMIC piping) upsets the air flow meter. If my theory holds true, the problem will disappear when venting the return to atmosphere
16 November 2010, 02:35 PM
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16 November 2010, 03:30 PM
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I have recently installed a Hybrid FMIC. When the dump valve opens, after decreasing throttle input, I get a strange "surging" acceleration when I reapply throttle.
My theory is that the increased amount of air returned by the dump valve (due to the FMIC piping) upsets the air flow meter. If my theory holds true, the problem will disappear when venting the return to atmosphere
My theory is that the increased amount of air returned by the dump valve (due to the FMIC piping) upsets the air flow meter. If my theory holds true, the problem will disappear when venting the return to atmosphere
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16 November 2010, 03:34 PM
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16 November 2010, 11:46 PM
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If you are running a stock recirc DV then it must be used as such and not run as a VTA.
I assume you are still running your MAF? That is another reason for continuing to run recirc.
You could try plugging the spiggot for the DV connection on the hard pipe close to the throttle body.
If you are running a VF29 I would not operate without a dump valve as that will greatly shorten its life.
I assume you are still running your MAF? That is another reason for continuing to run recirc.
You could try plugging the spiggot for the DV connection on the hard pipe close to the throttle body.
If you are running a VF29 I would not operate without a dump valve as that will greatly shorten its life.
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