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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.


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Old 04-24-2010, 02:52 PM   #1
87TurboII
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Default S5 A/C Idle Issue
I have a 91 vert that idles great even at 750 but once I switch the A/C on or if I have alot of things going such as the lights, fog lights etc.. the idle will dip as well.

When I turn on the A/C though it will just about kill the car if not kill it at times. There are a few times where the idle will go up like it should but 8 out of 10 times the idle drops.

I have checked for vacuum leaks, checked the BAC valve according to the FSM and it is within spec. I have the idle between around 800-850 rpm as the TPS is sitting right at 1 dcv.

What else could cause this drop in idle?

Thanks!






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