1227808 TPS adjustment
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Holden202T
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Re: 1227808 TPS adjustment
is it actually working though ? does it change voltage as you open the butterfly ?
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Basic tuning of a delco ECM with $12P thread
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Re: 1227808 TPS adjustment
if the tps code comes up, the reading you get in the log isnt tps.... its the estimated tps based on map sensor kpa.
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antus
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Re: 1227808 TPS adjustment
Yeah, as far as I know there is only "TPS - TPS Full travel - Worst case minimum voltage" which you might need of you cant get a proper 5v swing, eg 0.5->2v or something on a conversion, but it sounds like you might have a physical problem. Do you see approx 0-5v swing between the signal wire and ground on your multimeter as you actuate the TPS?
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VL400
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Re: 1227808 TPS adjustment
If you check the TPS and can see the voltage changing while logging, reset the codes and go for a drive while logging. Will then be able to see when the fault occurs and what causes it.