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Jim Grant Tech Tips Jim Grant Tech Tips
A collection of helpful articles based on reader submissions
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  Jim Grant's Tech TipsJim Grant's Tech Tips
Below is a collection of Jim Grant's Tech Tips sorted by Vehicle Make. These Tech Tips were answers to questions submitted to Jim by users over the course of many years.
If you have any questions, please feel free to email us.



Lincoln - Mercury
  Jim Grant's Tech Tips

'01 Lexus IS300, That light is killing me!

Q: I own a 2001 Lexus IS300 and I recently installed an aftermarket intake from Injen. After about 60 miles down the road the check engine light came on and I already reset the ECU, so now I don’t know what else to do. Is there any way to fix this without spending more money on it?


A: You can’t fix anything until you know why the check engine light came on. For that answer the computer has to be asked. The only way to ask the question is with a scan tool that will connect to the OBD II diagnostic connector. If you’re going to be performing repairs or modification to your Lexus you may want to consider purchasing a scan tool. There are two directions you can go. For about $250 now you can get a basic OBD II scan tool. This tool will allow you to read and clear codes, monitor some data stream info and has some other functions. It’s basically a tool that opens some windows so you can have a look see of what’s going on in the computer. If you really want some diagnostic power then step up to a factory scan tool. There is not enough space to explain the advantage of the factory scan tool and software package. Let’s put it this way, count the number of computer controlled systems on your vehicle. Don’t forget the climate control, dash displays, transmission, anti-lock brakes, traction control, air bags and the list goes on. Each one of these computer systems can only be accessed by the factory scan tool and software. Because you’ll only be working on your Lexus, there will be no need to buy up-dated software. A factory tool and software opens the doors to the whole candy store and should come in under $5000. If you want answers you’ll have to buy the right tools or pay someone who has for the information you need to repair you vehicle.

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