is200 Fuel Gauge Misreading - Lexus IS Forum
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post #1 of 5 (permalink) Old 01-02-2019, 06:47 AM Thread Starter
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is200 Fuel Gauge Misreading

Hi
having issues with the Fuel Gauge after doing a 1jz gte vvti (jzx110) conversion on my is200.
serious fuel level gauge problems and I don't know how to solve that and the Fuel Gauge doing strange things.

During filling up at the gas station and with Ignition [ON] you can watch each gallon going into the gas tank and the small red needle goes up step by step.

But when driving it doesn't drop off for about 50km , then suddenly it drops down to 3/4 and keeps stickin??????
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post #2 of 5 (permalink) Old 01-02-2019, 08:49 AM
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What ecu are you using?

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post #3 of 5 (permalink) Old 01-02-2019, 10:59 AM Thread Starter
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jzx110 ecu
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post #4 of 5 (permalink) Old 02-08-2019, 11:25 AM Thread Starter
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post #5 of 5 (permalink) Old 02-09-2019, 06:45 AM
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Quote:
Originally Posted by al waleed View Post
Hi
having issues with the Fuel Gauge after doing a 1jz gte vvti (jzx110) conversion on my is200.
serious fuel level gauge problems and I don't know how to solve that and the Fuel Gauge doing strange things.

During filling up at the gas station and with Ignition [ON] you can watch each gallon going into the gas tank and the small red needle goes up step by step.

But when driving it doesn't drop off for about 50km , then suddenly it drops down to 3/4 and keeps stickin??????
It may be the fuel return outlet.
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