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Thread: Dome Pressure Sensor

  1. #1

    Question Dome Pressure Sensor

    Hello, I'm trying to figure out how to wire up the dome pressure sensor into the I/O Harness. Where/how do I hook up the 3 wires off the sensor into I/O Harness? (Please be specific, like ground goes to this connection, etc.) I'm using the Holley HP EFI system. Thanks.

  2. #2
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    Quote Originally Posted by QUICK_8 View Post
    I'm trying to figure out how to wire up the dome pressure sensor into the I/O Harness. Where/how do I hook up the 3 wires off the sensor into I/O Harness?
    Only the signal wire connects to the I/O Auxiliary Harness, depending on which pin you choose.
    https://www.holley.com/document/tech...9r10629rev.pdf (Boost Control Quick Start Guide - Page 3 & 4)
    https://www.holley.com/document/techlibrary_199r10545rev.pdf (Pin Map Instructions)

    The +5V reference wire connects to the "Sensor 5V" pin (P1A - A26).
    The ground wire connects to the "Sensor Ground" pin (P1A - A18).
    http://documents.holley.com/techlibr...10555rev17.pdf (Holley EFI Wiring Manual - Page 6)
    http://forums.holley.com/showthread....3598#post53598 (Wiring Additional Sensors - HP & Dominator ECUs)
    http://www.yellowbullet.com/forum/sh...5#post14632905 (Related Forum Thread)

    To connect up to 4 Inputs & Outputs to the EFI main harness, use I/O Auxiliary Harness 558-400.
    Eight Wire I/O Auxiliary Harness Connector Pin-Out (also in the Holley EFI Wiring Manual Link):
    Pin A...A12...White/Blue (Input #1)
    Pin B...A3...White/Red (Input #2)
    Pin C...A13...White/Black (Input #3)
    Pin D...A4...White/Green (Input #4)
    Pin E...B12...Gray/Yellow (Output #1)
    Pin F...B11...Gray/Red (Output #2)
    Pin G...B10...Gray/Black (Output #3)
    Pin H...B3...Gray/Green (Output #4)
    http://documents.holley.com/199r10516.pdf (Holley 558-400 I/O Auxiliary Harness Instructions)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

  3. #3

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    Running two wastegates for twins, 2 dome ports, 3 lower ports, and 2 Holley boost controllers setup like Figure 1 on page 1: http://documents.holley.com/199r10629rev.pdf

    I will need to place a "T" in the "Wastegate Dome" line going to each wastegate, correct?
    And I will need to place a "T" in the "Dome Pressure sensor" line going to each wastegate as well?

  4. #4
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    Quote Originally Posted by Adrenalin View Post
    I will need to place a "T" in the "Wastegate Dome" line going to each wastegate, correct?
    Use two solenoids (total) and connect both wastegates together with a "T" fitting.
    http://www.yellowbullet.com/forum/sh...1#post13143921 (Related Forum Thread)

    And I will need to place a "T" in the "Dome Pressure sensor" line going to each wastegate as well?
    The Dome Pressure sensor is installed in the dome of one of the two wastegates.
    http://www.yellowbullet.com/forum/sh...4#post34340594 (Related Forum Thread)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

  5. #5

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    Thanks Danny.

    -Terry

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