EGR removal compensation (EMU) - Miata Turbo Forum - Boost cars, acquire cats.

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Old 08-24-2007, 01:18 PM   #1
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Default EGR removal compensation (EMU)

My car runs very lean on idle and it's running hot. The car won't start until it's completely cooled down. I was wondering what causes this problem.

I adjusted the size in the EMU parameters from 280 stock to 550cc, but I think it might be the EGR removal that causes this problem. I blocked the EGR because my manifold doesn't have a EGR port (HKS). So I think the ECU thinks the airtemp is higher than ik actual is. So the mixture gets leaner than it is supposed to be.

I hope it can be compensated by the EMU. Anyone?
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Old 08-24-2007, 01:44 PM   #2
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Whatever your injectorsize is, try to get
the compensation fitting to 14.7 AFR on idle.

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Old 08-24-2007, 02:05 PM   #3
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it sounds like you may have removed it incorrectly, or have a leak at a blockoff plate, or possibly still have the EGR valve hooked up and have a constant vacuum source going to it.

Could you outline your EGR removal? If the EGR was removed or bypassed correctly you shouldnt experience any differences in how the motor runs. I removed mine a week ago and it runs absoloutly normal except for the CEL
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