idles too high, please help - Lexus IS Forum
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post #1 of 7 (permalink) Old 11-25-2015, 01:08 AM Thread Starter
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idles too high, please help

revv stays at 3 all the time when it`s in neutral gear, cleaned the throttle body but didn`t help.
can someone help me please does anyone know how to clean position sensor?
what else could cause this?
recently changed fuel pump of different car could this cause the problem?

thank you
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post #2 of 7 (permalink) Old 11-25-2015, 06:50 AM
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I have you done anything to the car recently such as mods or maintenance work??

MY IS is Boosted with imagination by Sesame Street Performance (lol)
HKS DLI ignition box, PHR alternator 230amp or 250amp peak idk, Walbro 255lph fuel pump, Brain Crower 264 cams, SRT Intake with RaceECU, Fidinza adjustment Cam-gear Exhaust set 0, Mishimoto Engine&Trans radiator+hoses, megan racing y-pipe, OEM FRS 4.10 rear Torsen LSD diff, greddy EVO2 cat-back, SSR type CRS wheels, Tokico Illumina 5-way shocks, Cusco blue swaybars and chassis stiffiners..... Doin that all motor build
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post #3 of 7 (permalink) Old 11-25-2015, 06:58 AM Thread Starter
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yes, changed timing belt recently and after that accured this problem and cleaned throttle body
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post #4 of 7 (permalink) Old 11-25-2015, 07:22 AM
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well i would defintly start at the throttle body and inspect the throttle position sensor, accelerator pedal position sensor Not sure if you loosened anything when cleaning the throttle.

MY IS is Boosted with imagination by Sesame Street Performance (lol)
HKS DLI ignition box, PHR alternator 230amp or 250amp peak idk, Walbro 255lph fuel pump, Brain Crower 264 cams, SRT Intake with RaceECU, Fidinza adjustment Cam-gear Exhaust set 0, Mishimoto Engine&Trans radiator+hoses, megan racing y-pipe, OEM FRS 4.10 rear Torsen LSD diff, greddy EVO2 cat-back, SSR type CRS wheels, Tokico Illumina 5-way shocks, Cusco blue swaybars and chassis stiffiners..... Doin that all motor build
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post #5 of 7 (permalink) Old 11-25-2015, 10:21 PM Thread Starter
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I already had this problem and afterwords cleaned throttle body, if it`s accelerator pedal position sensor can it be cleaned? throttle body has two sensors right? I took one apart but it seems ok, the another one is too difficult to remove can`t even get to the screw to undo it, I don`t even know how to check they work or not ((
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post #6 of 7 (permalink) Old 11-27-2015, 06:23 AM Thread Starter
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any suggestions?
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post #7 of 7 (permalink) Old 11-27-2015, 08:58 AM
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Pull your codes and post them.

Do you have an IS200 or IS300?

'03 Wagon - Stock
'02 Sedan - Not Stock

"There's nothing like waiting and getting exactly what you want."
-Hiral
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