redtop rough idle and rev limit - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Bahdra · 10-22-2008, 09:09 PM

ok I just put my car back together and when i fired her up the other day it wouldn't idle smooth it will idle for a minuet but eventually die and it wont rev past 3500 rpm's and when the engine reaches 3500 it kicks it down to 2500-2800 rpms like a rev limiter?

my ideas are the maf is bad or there's a wire shorted out somewhere
anybody have this issue and howed you fix it?

Bahdra · 10-23-2008, 07:16 PM

bump ? any one?

jeb · 11-11-2008, 12:20 AM

check your maf plug. may be upside down or just a vacuum leak

kotea · 11-16-2008, 03:46 PM

probably a vacum leak mang.

FRoSt415 · 11-23-2008, 04:59 AM

Do you have a boost controler? Whats your psi? Also check maf plug wiring.

dark-knight · 11-23-2008, 12:05 PM

sounds like maf to me.

10-22-2008, 09:09 PM	#1
Bahdra Join Date: Oct 2008 Location: DENVER, CO Age: 35 Posts: 40 Trader Rating: (0) Feedback Score: 0 reviews	redtop rough idle and rev limit ok I just put my car back together and when i fired her up the other day it wouldn't idle smooth it will idle for a minuet but eventually die and it wont rev past 3500 rpm's and when the engine reaches 3500 it kicks it down to 2500-2800 rpms like a rev limiter? my ideas are the maf is bad or there's a wire shorted out somewhere anybody have this issue and howed you fix it? Last edited by Bahdra; 10-23-2008 at 08:15 PM..

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10-23-2008, 07:16 PM	#2
Bahdra Join Date: Oct 2008 Location: DENVER, CO Age: 35 Posts: 40 Trader Rating: (0) Feedback Score: 0 reviews	bump ? any one?

11-11-2008, 12:20 AM	#3
jeb Zilvia Member Join Date: Sep 2008 Location: here Posts: 239 Trader Rating: (4) Feedback Score: 4 reviews	check your maf plug. may be upside down or just a vacuum leak

11-16-2008, 03:46 PM	#4
kotea Join Date: Oct 2008 Location: edmonton Age: 32 Posts: 14 Trader Rating: (2) Feedback Score: 2 reviews	probably a vacum leak mang.

11-23-2008, 04:59 AM	#5
FRoSt415 Zilvia Junkie Join Date: Dec 2006 Location: san francisco Age: 34 Posts: 305 Trader Rating: (0) Feedback Score: 0 reviews	Do you have a boost controler? Whats your psi? Also check maf plug wiring.

11-23-2008, 12:05 PM	#6
dark-knight Leaky Injector Join Date: Apr 2008 Location: jacksonville Age: 33 Posts: 70 Trader Rating: (1) Feedback Score: 1 reviews	sounds like maf to me.