A/C On - Surging Idle - Low AFRs
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- Posts: 30
- Joined: 2022 Apr 18, 23:00
- Location: Faribault, MN
- Vehicle Information: 68 Mustang with 96 Explorer 5.0H.O. Stroked to 347. Trickflow intake/ heads. Flowtech custom Cam. CTBAE, SLL4.
Re: A/C On - Surging Idle - Low AFRs
Check voltage drop from compressor to battery ground with compressor running. It should be close to 0. check your grounds. compressor to engine block, engine block to frame. A bad ground can cause this with voltage backfeeding where ever it can.