Blooroo86xtGL Posted October 14, 2020 Share Posted October 14, 2020 Hey all idk if anyone can help me i finally got my Xt running decently but my only issue was bad throttle response but did run good. It idled fine but with throttle response it was very terrible, I would have to floor it to send a signal through so i figured a bad TPS. Only thing is not i changed it with a new sensor and i musta thrown out either the alignment marks on it or there’s a throttle relearn procedure I don’t know about. All advice appreciated. Quote Link to comment Share on other sites More sharing options...
DaveT Posted October 15, 2020 Share Posted October 15, 2020 No throttle re learn, these are simple systems. If the TPS is really bad, you should have a ECU code blinking on the LED on the ECU. Might be worth checking the fuel pressure - if it's low, it can idle fine, but be gutless as it's starved and leaned out. Quote Link to comment Share on other sites More sharing options...
Mack Truck Posted October 15, 2020 Share Posted October 15, 2020 how bout clogged fuel filter? has it been changed recently? 1 Quote Link to comment Share on other sites More sharing options...
Blooroo86xtGL Posted October 17, 2020 Author Share Posted October 17, 2020 On 10/15/2020 at 9:03 AM, Mack Truck said: how bout clogged fuel filter? has it been changed recently? New fuel filter, before i changed the TPS sensor it was fine its just i had bad throttle response. Drove and idled fine just throttle response was terrible Quote Link to comment Share on other sites More sharing options...
Blooroo86xtGL Posted October 17, 2020 Author Share Posted October 17, 2020 On 10/14/2020 at 11:37 PM, DaveT said: No throttle re learn, these are simple systems. If the TPS is really bad, you should have a ECU code blinking on the LED on the ECU. Might be worth checking the fuel pressure - if it's low, it can idle fine, but be gutless as it's starved and leaned out. What LED? And it was fine before i changed it but i hear theres a certain position on the TPS? Quote Link to comment Share on other sites More sharing options...
DaveT Posted October 17, 2020 Share Posted October 17, 2020 On the ECU, there is an LED, visible through a hole. Normally, it's mounted to the underside of the steering column. I am not extremely familiar with the XT, but EA82 SPFI, I have been maintaining since 1988. The TPS has adjustment for the angle, so you can set the idle switch. You should be able to get it close enough just by making sure the marks from the screws overlap the same places. The FSM has procedures for adjustment and checking the function of the switch and the pot. Quote Link to comment Share on other sites More sharing options...
Step-a-toe Posted October 17, 2020 Share Posted October 17, 2020 XT ECU is in the rear, under the parcel shelf Quote Link to comment Share on other sites More sharing options...
Step-a-toe Posted October 17, 2020 Share Posted October 17, 2020 7 hours ago, Blooroo86xtGL said: New fuel filter, before i changed the TPS sensor it was fine its just i had bad throttle response. Drove and idled fine just throttle response was terrible What is terrible throttle response if you say drove and idled fine? In my book it ain't driving fine if it has terrible throttle response. Manual? Clutch not toasting is it? Quote Link to comment Share on other sites More sharing options...
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