sc400 won't rev past 4000 rpm
09-04-13, 03:26 PM
#31
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Does your car rev cut at 4000 rpm too. I don't have the sputtering, it just redlines at 4000 rpm. Feels like I am floating the valves. I think the problem might be ignition related. I changed one coil though. I have to change the other. All the research I have done leads back to that or the crank sensor or ignition. I can't believe that there aren't that many members who have experienced this problem. I'm still working on it.
I unplugged my coils and the car ran differently as well as each spark plug wire..
I unplugged the maf and there was no change at all
04-14-14, 03:48 PM
#33
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Sorry to bring this thread back from the dead. Im having this problem and so far checked my maf sensor, replace the ecu, changed the igniters, change o2 sensors and now im about to change plugs and wires
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