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Thread: MAT Sensor Connector

  1. #1

    Default MAT Sensor Connector

    Got a '89 Formula and putting in the Avenger Stealth Ram system. When hooking up the MAT connection it has different connection on the harness. But the CTS connection fits into MAT sensor, using the stock sensor. Do I need to get the Holley MAT sensor, or is there a wire connector for this so can use the stock sensor? Thanks.

  2. #2
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    You can cut off the Holley connector, and solder on the connector that matches your MAT sensor.
    Or you can use the Holley MAT sensor.

    If you choose to cut the wires and add the connector for your existing MAT sensor,
    be sure to set the MAT sensor in the software to "Custom" and then you will have
    to program the temperature vs resistance in the table that you'll see.
    Resistance must go from low values to high values, from left to right.
    Temperature value can go either way, from low to high or from high to low.
    -Scott
    Don't forget to check out progress on my Race Car:
    Project Blasphemy - 8.07 @ 171
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  3. #3
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    Quote Originally Posted by S2H View Post
    Or you can use the Holley MAT sensor.
    Personally, I'd use the Holley MAT sensor. It's the easiest option, and won't require any sensor calibration data.
    http://www.holley.com/9920-107.asp (Holley MAT/IAT Sensor)
    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.

  4. #4

    Default

    Thanks all for responses. I will just get the sensor, I don't want be cutting and soldering more wires than I have too.

    Another question for the A/C compressor wire that comes off it that went to stock ECU, which keeps it wired up and per Holley instructions:
    A/C Shutdown – This output will provide a +12 volt output a defined throttle position. This output can be used to trigger a relay that deactivates the A/C at higher throttle positions. This may require the installation of a 5 pole relay in the existing A/C wiring. This wire is located in pin E of the 8 pin Input/Output connector and is Gray with a Yellow stripe.

    Is this really needed right away, or something that can be put in later? Looks like more wiring and a relay needs be added.

  5. #5
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    Quote Originally Posted by 89 formula View Post
    Is this really needed right away, or something that can be put in later?
    No, it's completely optional.

    Looks like more wiring and a relay needs be added.
    Correct, the A/C Shutdown feature requires a relay for operation.
    http://forums.holley.com/showthread....9130#post49130 (Addition Information)
    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.

  6. #6

    Default

    Dan, thanks again. Getting close to hopefully firing up car in a week or so.

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