Henry.S Posted May 11, 2023 Share Posted May 11, 2023 Hi there! I have been having start problems with my 1993 tt auto supra. Was driving fine all weekend until i parked it for about 10 minutes. Then when i turned on ignition rpm bounced up and down like crazy and no engine light, there is crank but no start. I have gotten it to start but only with a diagnostic code reader in the obd 1 port in the engine bay. Runs for about 2 minutes then it shuts down. i replaced the crank sensor but with no change i did get it to run perfectly fine after moving it to another garage with a trailer. When i got it of the trailer suddenly everything was back to normal. But after a small trip on a bumpy road whet back to not starting. The car is relatively stock with only a fmic and 255lph walbro fuel pump. Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted May 11, 2023 Share Posted May 11, 2023 You need to pull the error codes, paperclip style. Why did you change the crank sensor? First off, simple stuff, try and start it. Pull the plugs, are they wet (ignition) or dry (fuel) From that point we can work forward. Quote Link to comment Share on other sites More sharing options...
Scooter Posted May 11, 2023 Share Posted May 11, 2023 could be this Quote Link to comment Share on other sites More sharing options...
Ric Posted May 12, 2023 Share Posted May 12, 2023 SupraUFO on here had a similar issue. He also changed crank sensor, water temp sensors but it turned out the problem was a loose ground under the inlet manifold. Same issue, crank without start, RPM needle bouncing around Quote Link to comment Share on other sites More sharing options...
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