I had to fabricate the same bracket for the Trailblazer. So this time around improvements would be made to the design. Also I decided to combine the 98-LFRI-1, 98-GMFGRM and ABE025 MAP sensor modules on the same bracket. |
As usual the bracket starts out by cutting metal. This is an 1/8" bar that.
It was leftover scrap from a fabrication shop. I purchased in a bundle of scrap stock. |
Since this bracket bolts to the existing battery tray bolt holes, I traced the holes on the base plate and drilled them out. |
The outside holes were easy. The middle battery tray hole was a slot and masking tape is used to transfer the location to the base. |
This is a test fit at the battery tray bolt location. The base bolts up perfectly.
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Here a vertical piece of bar is TIG welded to the base. |
This is the ABE025 MAP sensor. It reads manifold vacuum and rail injector gas pressure. The readings are sent to the Technocarb ECM via a signal cable.
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A piece of 1/8" bar is cut to make the mounting. |
The MAP sensor is laid out. The vacuum and pressure hoses must be secured from movement. Movement will cause damage ti the sensor. |
This is a scrap piece of 3/8" stainless tubing. I am cutting 2 pieces to act as standoffs for the stainless steel cushion line clamps. |
Got to love when a plan comes together.
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Another view. The grade 8 bolts are over kill, however I have a ton to get rid off. |
The finished MAP sensor plate is clamped and readied for welding. The red coffee can provides support to steady the TIG torch. |
It is clamped again and the other side is welded. |
Next to be mounted is the 98-FGR, which is the GM fuel gauge reset module. Here I am tapping out the top hole for the module. |
The module is screwed down and the lower hole is marked. |
Last but least is the 98-LRFI-1, which is the GM fuel pressure interface module. It is mounted right below the 98-FGR.
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This is a sanity fit up to make sur everything fits and no interferences are encountered. |
A quick trip to the sandblasting booth and off to be painted. |
Doh and double Doh. I forgot to test install the bracket with the CNG regulator installed. So here I am welding an extension plate on. |
I hate when this happens. What a mess to fix.
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Well at least I admit my mistakes. |