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PCM and fuel sender

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Old Oct 22, 2014 | 02:55 PM
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Default PCM and fuel sender

I just put a new motor in my 98 Trans Am but repinned the harness to a 99+ but still have the original metal tank. Would it be easier to have someone retune the PCM for the 98 sender or swap out to a tank and sending unit from a 00 parts car I have?

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Old Oct 22, 2014 | 06:01 PM
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The issue is with the dash cluster not the fuel tank. The PWM output needs to be enabled on the PCM and hooked to the proper input on the cluster
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Old Oct 22, 2014 | 06:35 PM
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I was told the resistance range on the sending unit was different than on the 99+ is why the fuel gauge wouldn't work. All the other gauges work with no issues with the repinned harness, but I had also heard the oil pressure sending unit wouldn't work, the temp sender wouldn't work but they all do.
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