Re: 1998 XJ; Slow/Underpowered Acceleration, Shift Problems, Error Codes P0700 & P072
No, I still had the transmission problems after I bought and installed a new TPS. The TPS code was an earlier number, was told to fix the lower number codes first. Replacing the TPS, if I recall correctly, did help with this hunting idle issue I had had in traffic.
The solenoids I replaced after the TPS, since the TPS was a cheaper and quicker fix. The codes disappeared for a while, only recently came back, though the sluggish shift/acceleration has basically always been there. Was only moderately improved after the solenoid/TPS replacements.
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