Remp Posted July 26, 2023 Share Posted July 26, 2023 I recently acquired a 94 Lexus LS 400. I like the way it drives but it has a few issues. 1. It does not start after the engine is hot. (It cranks fine, but does not start). I have to wait until it cools down (about 30-60 minutes) before I can start it again. I have replaced the Coolant temp sensor and Crank position sensor already. I had a code 13 showing up and after replacing the Crank sensor I drove the car for 15 minutes with no engine check light on. However, it came back on the next time I started it. 2. Just started having an issue with idling. Pulling up to a stop sign it wants to die. This has only been happening for the last week. 3. Speedometer takes a few minutes before it starts to show the speed. Any help with these issues would be appreciated. Thank you. Robert Quote Link to comment Share on other sites More sharing options...
chc0318 Posted July 26, 2023 Share Posted July 26, 2023 How many miles? You might need to replace your fuel pump control module relay. Quote Link to comment Share on other sites More sharing options...
Remp Posted July 27, 2023 Author Share Posted July 27, 2023 Right at 200,000. Is that the same as the Fuel Pump Relay (EFI Main Relay) under the hood on the driver side. Quote Link to comment Share on other sites More sharing options...
Remp Posted July 27, 2023 Author Share Posted July 27, 2023 Right at 200,000. Is that the same as the EFI Main Relay under the hood on the driver side. I switched this relay with the horn relay next to it and it did not change anything. Quote Link to comment Share on other sites More sharing options...
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