| Re: Throttle Position Sensor? Bogging down problem... Hank
TPS - Probably not - but you can easily check TPS with DVM to make sure that it does not have a worn spot at near WOT position. Basically, with engine off, ignition on measure Pin B (backprobe connector, do not damage harness) voltage of the TPS connector relative to ground (Pin A). Voltage should change smoothly from about 0.6 volts at idle to about 4.3 - 4.6 VDC at WOT.
Most likely it is your fuel pump on the last legs. Check TPS as outlined above to exclude TPS out of your trouble tree.
//RF |