gm3barinstall
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gm3barinstall [2008/08/05 09:31] twdorris |
gm3barinstall [2024/03/15 11:16] (current) |
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| ===== Parts needed ===== | ===== Parts needed ===== | ||
| - | - GM 3 bar map sensor from http://www.gmpartsdirect.com. Part number 16040749 $59 shipped | + | - GM 3 bar map sensor from http://www.gmpartsdirect.com. Part number info can be found at the bottom of [[externalsensorlist|this page]]. |
| - Map sensor harness | - Map sensor harness | ||
| - | - Off of a camarobird (or other GM car) in a junkyard: $0-1 | + | - Off of a camarobird (or other GM car) in a junkyard |
| - | - OR you can get it from NAPA P/N 784524 - GM Weather Pack Triple Male w/seal Housing. You will also need male pins for this connector, since it is just an empty shell. ~$4 for all | + | - OR you can get it from NAPA P/N 784524 - GM Weather Pack Triple Male w/seal Housing. You will also need male pins for this connector, since it is just an empty shell. |
| - | - OR you can get the connector pre-assembled from GM, the part number is 15305891. $17.26 + shipping | + | - OR you can get the connector pre-assembled from GM, the part number is 15305891. |
| - Vacuum hose (one foot will be plenty) | - Vacuum hose (one foot will be plenty) | ||
| - T connector to splice into the intake manifold boost/vacuum source | - T connector to splice into the intake manifold boost/vacuum source | ||
| Line 20: | Line 20: | ||
| This VFAQ will assume you have the junkyard MAP connector harness, or you have already assembled your store bought connector | This VFAQ will assume you have the junkyard MAP connector harness, or you have already assembled your store bought connector | ||
| + | |||
| + | {{https://www.ecmtuning.com/images/forums/gm3barinstall/map_and_harness.jpg?160x120|Click to enlarge}} | ||
| Now I assume you know how to find the MDP sensor. It is the sensor that sits on top of the intake manifold of a 2G. Unplug the electrical connector, but leave the sensor installed in the intake manifold. | Now I assume you know how to find the MDP sensor. It is the sensor that sits on top of the intake manifold of a 2G. Unplug the electrical connector, but leave the sensor installed in the intake manifold. | ||
| - | Try to insert the empty Weather Pack connector into the MAP sensor. It won't go! See those little tabs inside the MAP sensor holes? Well, you have to make slits with a razor in the connector you bought to match. Here is what it looks like before: | + | {{https://www.ecmtuning.com/images/forums/gm3barinstall/stock_map.jpg?160x120|Click to enlarge}} |
| + | {{https://www.ecmtuning.com/images/forums/gm3barinstall/map_unplugged.jpg?160x120|Click to enlarge}} | ||
| - | |||
| - | + | Try to insert the empty Weather Pack connector into the MAP sensor. It won't go! See those little tabs inside the MAP sensor holes? Well, you have to make slits with a razor in the connector you bought to match. Here is what it looks like before: | |
| + | |||
| + | {{https://www.ecmtuning.com/images/forums/gm3barinstall/map_plugs.jpg?160x120|Click to enlarge}} | ||
| + | {{https://www.ecmtuning.com/images/forums/gm3barinstall/map_and_harness_pins.jpg?160x120|Click to enlarge}} | ||
| And here it is after the cut: | And here it is after the cut: | ||
| - | + | {{https://www.ecmtuning.com/images/forums/gm3barinstall/map_and_cutharness.jpg?160x120|Click to enlarge}} | |
| Here are the connections: | Here are the connections: | ||
| - | MAP Function MDP | + | ^ MAP ^ Function ^ MDP ^ |
| + | | A | Ground | Black | | ||
| + | | B | Signal | Light green-black stripe | | ||
| + | | C | +5 Volts | Green-yellow stripe | | ||
| - | A Ground Black | ||
| - | B Signal Light Green-Black stripe | + | If you want to solder, that is best, but I just used vampire taps. Tap the connector into the appropriate lines. |
| - | C +5 Volts Green-Yellow stripe | + | That's about it. Hook up the vac lines. Use a zip tie around each connection. |
| - | + | Tape up your wires with electrical tape, and secure your map sensor somewhere safe. | |
| - | If you want to solder, that is best, but I just used vampire taps. Tap the connector into the appropriate lines. | + | {{https://www.ecmtuning.com/images/forums/gm3barinstall/newmap_installed.jpg?160x120|Click to enlarge}} |
| - | + | Pictured below is the GM 3.3 MAP sensor (pt#9373269) and pigtail (pt#88987997) for comparison. The sensor is labeled from the factory with wiring pinout. | |
| - | That's about it. Hook up the vac lines. Use a zip tie around each connection. | + | {{http://img2.imageshack.us/img2/7665/33bar.jpg?160x120|Click to enlarge}} |
| - | Tape up your wires with electrical tape, and secure your map sensor somewhere safe. | ||
| - | + | ||
| + | ===== Sensor Identification ===== | ||
| + | How to identify a GM MAP sensor: | ||
| + | |||
| + | {{http://i34.photobucket.com/albums/d119/Robie01/Projects/MAP/mapsensor.jpg?160x120|Click to enlarge}} | ||
| + | |||
| + | 3 digit numbers for identification: | ||
| + | |||
| + | | 1 Bar |039, 460, 883, 876 | | ||
| + | | 2 Bar |886, 012, 539, 609, 701| | ||
| + | | 3 Bar |749, 861 | | ||
gm3barinstall.1217943098.txt.gz · Last modified: 2008/08/05 09:31 by twdorris
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