ECU Mapping Problem? - Suzuki LT-R450 Forum ::
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post #1 of 2 (permalink) Old 10-08-2018, 02:07 PM Thread Starter
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Question ECU Mapping Problem?

HELP PLEASE. 2006 450 LT-R Suzuki. I just replaced all the following items with brand new parts: ProCom ECU/EFI unit, Voltage rectifier, Coil, OEM Fuel Pump, Stator by Moose Racing, OEM Key Ignitition Switch, New Tether Switch, New Spark Plug, Head Gasket and Piston rings. Piston is stock. Motor work by Williams Performance (head ported & polished) I also deleted the swirl filter and replaced with a straight in line fuel filter. PROBLEM: Bike starts up fine, has good compression. Runs fine in all gears at low rpm's, than when you hammer the throttle to 80-100% it takes off for about 3-5 seconds before the engine shuts down. I have set the ECU unit on all the pre set maps that ProCom sets # 's 4,5,6,7,8 and it does the same thing. Map # 9 the bike will not stay running. Any help would be greatly appreciated as I have spent a ton of money on parts so far. Does this sound like an issue of mapping?
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post #2 of 2 (permalink) Old 10-10-2018, 07:35 AM
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Is your fuel pressure constant when it starts to die out?

Four (4) '06 LTR450's, '16 Beta 300RR, '09 CRF150RB, '11 Grizzly 550, 16 Beta X trainer, Laeger Trx500
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