Ecm spy question
Xb12s suffering from stuttering backfire will not run , No fault codes being displayed , question is when is plugged in to ecm spy and connected should it display or show anything on the TPS part of the graphic ,I seem to remember it showed when the throttle was turned ........but mine doesn't! Could it be a tps fault ???

iirc yes it should
are you sure the throttle shaft hasn't snapped inside the throttle body

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Feros Ferio

Rushed home from work to check the throttle spindle but alas no , did take tps sensor but that seems OK

iirc yes when you reset TPS . it then shows movement .

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Buell Ulysses XB12X 06/08

I thought it would show when you twist the throttle.

It does.
what's your location ?

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Mithered ta death.
92 MB
96 S2T
98 S1W
00 M2
01 X1
03 P3
10 CR