Ωhm
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Everything posted by Ωhm
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I just want you to be safe. Vapors/static electricity are the danger.
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This is extreme testing. CAUTION is needed everywhere. Danger Will Robinson Danger.
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No, run battery voltage or use another battery straight to the pump connector in the bucket.
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That bucket of fuel, now this getting scary. Can you run battery straight to the fuel pump?
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@eaglescout526 Nice job on proving out CTS and WOT switches. I think my testing flaw came with leaving the ECU connected to the harness. Lesson learned.
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No, its a question for the world.
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Question for INJ NOID LIGHT user. Does NOID LIGHT dim or flicker during engine CRANK? 2.5L
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Maybe I need to look into my testing methods. But I still think both switches are bad. Try START with ISA and WOT disconnected.
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I thinking both switches are bad. Try to START vehicle with WOT switch disconnected.
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Understood, close enough. Let's look a WOT switch. Same test except use D2_6. Work lever on WOT.
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So its 11.8vdc all the time.
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Connect DVOM between B+ and D2_13. KEY OFF. Does voltmeter change state (0vdc or 12vdc) as you work the plunger in or out?
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Does the plunger on the tip of the ISA move in and out? Can you move it?
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@SoCalManche do you have a WOT switch?
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87/88 show no power steering relay. Is it a 86 thing only?
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@eaglescout526 can you determine if ECU part numbers are different? Do they ask question w/WOT or w/PS.
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If you for TOPIC under the following, its gone RED HOT again. Home - Comanche Club Forums - MJ Tech: Modification and Repairs
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That's when I first used the word "confusing".
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Other inputs determine when FP relay is activated. KEY ON will prime the pump. CRANK will keep FP relay activated. CPS will demand FP relay at all times.
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Pin 85 is strictly the grounding side for fuel pump relay (coil) control. Jumping pin 30 to 87 just does what the relay should do when controlled by the ECU.
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The difference between B and C on both connectors is about 5vdc.
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That ain't right. I need to chew on this for awhile.
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Both 86 & 87 show TPS wiper circuit as going to GND, but 88 has it as INPUT. 88 is correct physically.
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Between the three (3) schematic (86, 87 and 88), TPS is a mess for INPUT and GND circuits.
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I'll check it out.
