TPS Replacement Suggestions...
#61
#63
#65
Join Date: May 2015
Location: Then Wisconsin, now North Carolina
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When they call them Magnetti Marelli or Delphi systems, the ECM is being referenced - not sensors or injectors. The TP on your bike should only have a hole that the 2 mounting screws pass through. The TP on a MM ECM bike will have elongated slots where the screws pass to adjust the TP base voltage. The adjustable sensor is a PF4C, not a PF1C
Last edited by Ed Ramberger; 07-01-2020 at 08:39 PM.
#67
Join Date: May 2015
Location: Then Wisconsin, now North Carolina
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Monitor it with a scan tool and slowly roll the throttle from open to closed and back and make sure there are no skips. Or, monitor it with a digital volt meter and do the same. Shouldn't be any skips or dead spots. I believe that the two outer wires on the tp are the ones you would monitor (voltmeter) with the bike powered up (not running) and the TP installed on throttle body.
Are you having an issue?
Are you having an issue?
Last edited by Ed Ramberger; 07-01-2020 at 10:05 PM.
#68
I used the DC voltmeter and only two of the three wires showed readings. The middle and outer one that is closer to the front tire showed the same readings. It started at .51v and went up nicely with the throttle. At full throttle, I got .434v
Started the bike and it is running poorly. Almost seemed like it was going to die. Does the TPS seem in range and good, or should it be replaced? Any other ideas for sudden poor performance?
Started the bike and it is running poorly. Almost seemed like it was going to die. Does the TPS seem in range and good, or should it be replaced? Any other ideas for sudden poor performance?
#69
Join Date: May 2015
Location: Then Wisconsin, now North Carolina
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I used the DC voltmeter and only two of the three wires showed readings. The middle and outer one that is closer to the front tire showed the same readings. It started at .51v and went up nicely with the throttle. At full throttle, I got .434v
Started the bike and it is running poorly. Almost seemed like it was going to die. Does the TPS seem in range and good, or should it be replaced? Any other ideas for sudden poor performance?
Started the bike and it is running poorly. Almost seemed like it was going to die. Does the TPS seem in range and good, or should it be replaced? Any other ideas for sudden poor performance?
From memory I thought it was the two outer wires (oh well) but the point is that you're looking for is something that starts around the .5V ish point and swings continuously up to about 4.5 ish.
Start with the basics, battery connections clean and tight, plugs, fuel for contamination, intake leaks. Pull any codes. Then things like fuel pressure would be checked if all basics and other things check out.
Last edited by Ed Ramberger; 07-02-2020 at 08:03 PM.