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Jeep Wrangler YJ
YJ General Discussion
5 volts TPS
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<blockquote data-quote="deadpool1" data-source="post: 441237" data-attributes="member: 21229"><p>0.1vdc is NOTHING EVER. on jeeps or EFI.</p><p>its not a jump at all it is just normal car power noise all cars made have.</p><p>what pins you probed IDK</p><p></p><p>the power pins measure only from</p><p>TPS pin 1 to pin 3. it is 5v and 5v means<strong><span style="color: rgb(184, 49, 47)"> 4.5v to 5.5vdc,</span></strong> each ECu will be in that range, so until ECU is replace it does not change</p><p>well unless other sensors short that line, 5v out of ECU.</p><p>and 0.1vdc is not a change or a jump it is normal.</p><p>as you can see , I can not watch you meter probe the TPS, so I have no idea what you did, blind.</p><p></p><p>the TPS ground is special, it comes from the ECU, this ground is created by the ECU and is monitored</p><p>by the ECU (ADC) even makes corrections for Ground errors on that pin, that is one of ECUs many jobs. (features)</p><p>to test the TPS ground ? , connect meter black lead testprobe to battery main NEG lug.,</p><p>then red meter probe to TPS ground. this is your ground error. it will be in my opinon be about 0 to 0.5vdc there.</p><p>the ECU also corrects for ground errors and battery weak errors to get the injectors pulse rates correct for these normal</p><p>differential errors . this is how it work. The ECU is designed to handle normal minor errors and not make more smog.</p><p>note that ground pin goes other places that can fail too.</p><p>as does the 5vdp pin go to the MAP to run this electronic MAP sensor.</p><p></p><p>next time be clear on meter lead connections. and what make you say a reading is wrong, say what makes you think it so?</p><p>0.1 is not any kind of error.</p><p>most cars are ground spec. at 0 to 0.5vdc errors are allowed, mostly for cheap small gauge wire used. so save cash to build the car.</p><p>ive seen new cars with 1vdc drop on the fuel pump power wire. 11v cranking and 10V to the pump</p><p>all normal due to dinky wire.(Awg) </p><p></p><p>tell what fails and does not fail</p><p>both. that is why the post fails. </p><p></p><p>under what conditions does it not MISFIRE< (all conditions matter) ???????</p></blockquote><p></p>
[QUOTE="deadpool1, post: 441237, member: 21229"] 0.1vdc is NOTHING EVER. on jeeps or EFI. its not a jump at all it is just normal car power noise all cars made have. what pins you probed IDK the power pins measure only from TPS pin 1 to pin 3. it is 5v and 5v means[B][COLOR=rgb(184, 49, 47)] 4.5v to 5.5vdc,[/COLOR][/B] each ECu will be in that range, so until ECU is replace it does not change well unless other sensors short that line, 5v out of ECU. and 0.1vdc is not a change or a jump it is normal. as you can see , I can not watch you meter probe the TPS, so I have no idea what you did, blind. the TPS ground is special, it comes from the ECU, this ground is created by the ECU and is monitored by the ECU (ADC) even makes corrections for Ground errors on that pin, that is one of ECUs many jobs. (features) to test the TPS ground ? , connect meter black lead testprobe to battery main NEG lug., then red meter probe to TPS ground. this is your ground error. it will be in my opinon be about 0 to 0.5vdc there. the ECU also corrects for ground errors and battery weak errors to get the injectors pulse rates correct for these normal differential errors . this is how it work. The ECU is designed to handle normal minor errors and not make more smog. note that ground pin goes other places that can fail too. as does the 5vdp pin go to the MAP to run this electronic MAP sensor. next time be clear on meter lead connections. and what make you say a reading is wrong, say what makes you think it so? 0.1 is not any kind of error. most cars are ground spec. at 0 to 0.5vdc errors are allowed, mostly for cheap small gauge wire used. so save cash to build the car. ive seen new cars with 1vdc drop on the fuel pump power wire. 11v cranking and 10V to the pump all normal due to dinky wire.(Awg) tell what fails and does not fail both. that is why the post fails. under what conditions does it not MISFIRE< (all conditions matter) ??????? [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
5 volts TPS
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