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Old 29th October 2010, 10:03   #1
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Default Over revving MPFI Zen Engine( revv limiter doesnt cut at 6000 rpm!!)

Team,

The old Zen (mpfi ) has a revv limiter set at 6000 rpm i.e one cant revv beyond 6000 rpm.

But these days ,my car ( 10 years and 1.75 L kms ) which has been maintained at correct service intervals goes upto 7000 rpm!!!.I didnt dare go beyond that .


Wanted to know from the experts as to why do you think is this happening?


Cheers,

Satya
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Old 29th October 2010, 13:29   #2
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the same thing happened with my 01 lancer aswel. my tuner didnt have an answer but man was i enjoying it!!
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Old 29th October 2010, 15:23   #3
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Isnt the rev limiter a function of the ECU.I just hope it isnt the ECU
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Old 29th October 2010, 17:06   #4
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Quote:
Originally Posted by speedsatya View Post
Isnt the rev limiter a function of the ECU.I just hope it isnt the ECU
I do believe rev limiter as a feature of the ECU. But if something got messed up with the ECU you should probably get an error code and a check engine right? I suggest, do get it checked from the A.S.S
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Old 30th October 2010, 15:21   #5
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Did you change your battery, or reset the ECU in any way? Some ECUs follow a "learning" curve after being reset. Here is a related thread (NHC engine revv limiter not working?).
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