Issues after replacing throttle body
#1
Issues after replacing throttle body
Hello, I recently replaced the throttle body in my 2002 XK8. After I put the new one in, I made sure the throttle position sensor (also new) was in the same position as the old one and I disconnected my battery to reset the system. However, I now have messages on my dash saying ASC Fault, ABS Fault, and Failsafe Engine Mode. I have scanned it and found these codes: P1224 (Electronic Throttle Control Position Error) and P0122 (Throttle Position Sensor A Circuit Low Input). Occasionally when I start the car, there will be no messages on the dash but the rpms will rev very high. Any information is welcome.
Thanks.
Thanks.
#3
[QUOTE=RichardS;2779762]Can you put the original TPS back and see if that makes any difference?
Do the butterfly positions roughly correspond with the % throttle opening as read from your OBD scanner?
I can put the old one back in tomorrow morning and see if there is any difference. As for the butterfly position, I am not certain my scan tool can read that. If it can, I will check it before and after I put the old sensor back in
Do the butterfly positions roughly correspond with the % throttle opening as read from your OBD scanner?
I can put the old one back in tomorrow morning and see if there is any difference. As for the butterfly position, I am not certain my scan tool can read that. If it can, I will check it before and after I put the old sensor back in
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RichardS (08-25-2024)
#4
A long shot
Hello, I recently replaced the throttle body in my 2002 XK8. After I put the new one in, I made sure the throttle position sensor (also new) was in the same position as the old one and I disconnected my battery to reset the system. However, I now have messages on my dash saying ASC Fault, ABS Fault, and Failsafe Engine Mode. I have scanned it and found these codes: P1224 (Electronic Throttle Control Position Error) and P0122 (Throttle Position Sensor A Circuit Low Input). Occasionally when I start the car, there will be no messages on the dash but the rpms will rev very high. Any information is welcome.
Thanks.
Thanks.
#5
[QUOTE=David Dougherty;2779827]I have a 2000 XK8, aj27 so we have the same TB. I had mine rebuilt and installed with no issues. I don't understand why you wanted the throttle position sensor in the same position as the old one? Perhaps the cable to the TB is to tight and the TB is never in a full idle position? There should be some slack in that cable.
I've just read that the tps needs to be in the same position. The cable may be a little tight, but when it revs up when I start it, it's like I put the pedal to the floor
I've just read that the tps needs to be in the same position. The cable may be a little tight, but when it revs up when I start it, it's like I put the pedal to the floor
#6
#7
You have to re- boot after messing with the throttle body…remove battery cable and tape together for 15 min. Then reconnect battery. Next turn ign. On and let system scan run. Then start. All should be corrected. You will need to re-set windows and radio. This cured all my problems with mine.
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Fristim
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12-03-2023 01:39 PM
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