The FuelTech Peak and Hold 8A/2A module is a 4-channel low-impedance injector driver designed to support high-power fuel systems using low impedance injectors. Capable of controlling up to 4 injectors below 1.5 ohms, it ensures precise current control for reliable fuel delivery and performance. This module is ideal for setups using Billet Atomizer, Bosch 160lb/hr, Siemens, or MSD low-impedance injectors.
Key Features:
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Supports:
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16 Bosch 160lb/hr (1600cc) injectors (4 per channel)
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8 Siemens low-impedance injectors (2 per channel)
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4 MSD low-impedance injectors (2 per channel @ 2 ohms)
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Designed for injectors with impedance below 1.5 ohms
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4-channel peak and hold injector driver
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Current control: 8A peak / 2A hold
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Ensures optimal injector performance without overheating or overloading ECU outputs
Determine Which Peak and Hold Box You Need:
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Set your multimeter to 200 Ohms
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Measure your lead resistance by touching the meter’s probes together
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Measure the injector’s resistance
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Subtract the lead resistance from the injector reading
Selection Guide:
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High Impedance (>7Ω): No Peak and Hold required
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2A Box (3Ω to 7Ω) – e.g. Bosch 160lb/hr
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4A Box (1.5Ω to <3Ω)
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8A Box (<1.5Ω) – Required for Billet Atomizer injectors made after Nov. 2012
Billet Atomizer injectors with serial numbers before C300*** (made before Nov. 2012) require the 4A/1A box.*
What’s Included:
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(1) Peak and Hold 8A/2A Driver
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(1) Operation and installation guide
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(1) Mounting kit (4 rubber mounts, 4 washers, 4 ¼” nuts)
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(1) 6ft unterminated harness (optional)
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(1) FuelTech black carbon fiber sticker
