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post #1 of 6 (permalink) Old 09-05-2018, 10:07 PM Thread Starter
 
Join Date: Sep 2018
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Loss of power!! In my 07 revolt.

She runs well, If I Run 8000rpm hard for a few min, computer retards timing with huge loss of power. Not sure exactly what causes this because, if I shut off turn back on, she rips again.. please help? Already swapped coolant sensor, checked spark, fuel pressure etc. could this be a coil going bad? Or do I just run this stock revolt too hard, always on rev limiter ok for these? Having a blast don’t want to have to stop or slow down. Lol
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post #2 of 6 (permalink) Old 09-11-2018, 08:28 PM
 
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Re: Loss of power!! In my 07 revolt.

If you are up against the rev limiter (8500 rpm), and you are leaving the throttle wide open for long periods of time, the ECU will go into limp mode to keep from destroying the engine. They will run at 8000 rpm for long periods and it shouldn't be shutting down at that rpm. If your engine does go well over 8000 rpm, you need to add weight to the clutch arms or the belt may be way too loose or there may be other clutch problems that need to be fixed. If the engine gets too hot, the ECU will go into limp mode also. They normally run at 180 deg. If yours is getting up in the 220 to 230 range it will go to limp and the small warning light in the tachometer will be blinking.

Last edited by Pilot; 09-13-2018 at 09:42 AM. Reason: mistake
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post #3 of 6 (permalink) Old 09-12-2018, 09:01 PM Thread Starter
 
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Thanks, I’m interested in clutch weights? The ECU limp, definitely not due to heating or coolant sensor. (Replaced) and did your trick with tripping to check light, fan,It’s good! Last run,It went limp mode, not even running hard. Idk yet, it’s all tore down for maintenance and clean, found missing bolt on intake sensor but seemed alltight with seal. Keep ya posted soon..
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post #4 of 6 (permalink) Old 09-13-2018, 09:46 AM
 
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Re: Loss of power!! In my 07 revolt.

Does the check engine light come on when it goes into limp mode. Check to see if the wires are both connected from the check engine light. They were disconnected at many dealers to fix another problem on the early production cars when a false code was detected. You may just need to clean or replace the MAP sensor on the intake runners.
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post #5 of 6 (permalink) Old 09-13-2018, 10:11 AM Thread Starter
 
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No light comes on, it is connected and works. I’ll try cleaning map sensor..
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post #6 of 6 (permalink) Old 10-07-2018, 09:45 PM Thread Starter
 
Join Date: Sep 2018
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Ran Juniper dunes real hard after rain! Bad ass! Anyway revolt keeps loosing power. A quick switch off and on it’s fine. Could this be fuel pump or pressure regulator? I’ve been through everything? Pump makes high pitch but, sounds cool. Buddy riding in pilot says when it losses power it blows fire out pipe, kinda makes me think fuel issue but, only happens when I run 8k and why would a restart clears problem? I’m going to replace filter and check pump/pressure etc. and clean map sensor again..
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