Need Help LS 400 Hesitation!!!!

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geoquest

New Member
I have a 93 LS 400 and have engine cut-off problems under heavy throttle. It feels like it hits the rev limiter. If you mash the throttle it will cut off at around 2000 RPM. I took it to a local shop with computer diagnostic equipment and it read code 41 TPS sensor. Changed out the TPS sensor and it fixed the problem for a day. Problem came back. Scanner reads code 41 again after another TPS. Also the scanner reads the output of the TPS and reaches about 25% and drops back to zero. I also noticed my shifting is too quick, all gears will go in before 25 MPH and the transmission lock-up converter is not engaging. Car runs like a champ if you granny drive it asside from the transmission shifting too early. On the scanner it also mentions fail-safe mode. Any Ideas?????
 

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