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"might not 86/2 be good as because it would tell me if the ecu is having a problem..."
You will lose that ECU ground anyway if the engine stalls for any reason (no ignition pulses to ECU). Maybe it doesn't make any difference. But it confuses me to think about adding another variable to the mix.
I think Art's theory is to watch that pump voltage to see if it drops down over time. Maybe he will chime in and straighten us out on this.
P.S. Your "contraption" looks good but it might be hard to get an accurate handle on voltage level with that dash meter. I was thinking you'd use a regular Digital meter.
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Bruce Young, '93 940-NA (current), 240s (one V8), 140s, 122s, since '63.
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