Over revving MPFI Zen Engine( revv limiter doesnt cut at 6000 rpm!!)

speedsatya · 29th October 2010, 10:03

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

wildchild4lyfe · 29th October 2010, 13:29

the same thing happened with my 01 lancer aswel. my tuner didnt have an answer but man was i enjoying it!!

speedsatya · 29th October 2010, 15:23

Isnt the rev limiter a function of the ECU.I just hope it isnt the ECU

bhp_maniac · 29th October 2010, 17:06

Quote:

Originally Posted by speedsatya

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

GTO · 30th October 2010, 15:21

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.

29th October 2010, 10:03	#1
speedsatya Senior - BHPian Join Date: May 2004 Location: bangalore/manga Posts: 3,169 Thanked: 738 Times View My Garage	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
	() Thanks

29th October 2010, 13:29	#2
wildchild4lyfe BHPian Join Date: Nov 2009 Location: mumbai Posts: 405 Thanked: 7 Times View My Garage	the same thing happened with my 01 lancer aswel. my tuner didnt have an answer but man was i enjoying it!!
	() Thanks

29th October 2010, 15:23	#3
speedsatya Senior - BHPian Join Date: May 2004 Location: bangalore/manga Posts: 3,169 Thanked: 738 Times View My Garage	Isnt the rev limiter a function of the ECU.I just hope it isnt the ECU
	() Thanks

30th October 2010, 15:21	#5
GTO Team-BHP Support Join Date: Feb 2004 Location: Bombay Posts: 71,554 Thanked: 309,912 Times View My Garage	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.
	() Thanks