SR won't rev past 2200rpms - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

RedSuns · 06-05-2002, 06:57 PM

If I unplug the MAFS it does not affect anything.  That is what I believe it is.  I have checked and verified that there are no boost leaks or vaccum leaks.I really wnat to get my motor running.

Johnathan

S14 SR20DET

BEISSEN · 06-05-2002, 07:53 PM

Hey johnathan if you need some help on you sr tommarrow just e-mail me or call me at 703-781-0414 or on my cell at 202-297-0220.

wherezmytofu · 06-05-2002, 08:47 PM

chekc the ignition system....normally when a car wont rev up...it's that  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt='

'>

RedSuns · 06-06-2002, 05:26 AM

what about the possibility of the MAFS..

Kreator · 06-06-2002, 09:48 AM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (cIvIcKILLA240style @ June 06 2002,06:26)</td></tr><tr><td id="QUOTE">what about the possibility of the MAFS..</td></tr></table><span id='postcolor'>
It might be, but those things run for like $150 and i don't think you wonna spend that much money w/o making sure it's the maf.... i though have no idea how you could verify that the maf sensor is failing

camppain · 06-06-2002, 10:15 AM

does your car just rev up to around 2200 25oo go back down and shoot right back up?
your car is basically in "safe mode" from what it sounds like.
is an engine light on?
i am pretty sure its your maf connector, did you wire it up correctly?
i had the same thing happen on my sr20de in my sentra one of the maf wires broke on the connector harness. fixed the broken wire plugged it back in and the problem was gone deleted the code

RedSuns · 06-06-2002, 10:23 AM

it will idle fine all day....but once I try to rev it it will rev up to 2200rpms and then no goes past...it just bounces back up to 2200rpms than back down to 2000rpms....does anyone know the proper voltage levels that are read at the MAFS...

*sykikchimp* · 06-06-2002, 11:52 AM

disconnect the MAF plug and start the car.  See if it does the same thing.  If it does, it's probably either the MAF sensor, or wiring like camppain said.

MOTOREX_SR20 · 06-07-2002, 12:15 AM

This sounds exactly like what happened to me the other day when we were finishing up on my engine.  The engine would rev to ~2200 and then sound like it was hitting the rev limiter.  It ended up that the wires to the MAF were loose and we had to solder them again.  Hope this helps!!!

Vernon
MotoRex

rotaryknight · 06-07-2002, 12:32 AM

AHAHA Vernon Ken better not mess up on my install man.

SpoiledBoi · 06-07-2002, 12:28 PM

is it right before u boost? if so, check all ur pipes and make sure they are secure and tight from the turbo to the intercooler and from there to ur intake manifold, i think they arent on tight enough and under pressure they are bleeding and its keepin the turbo from spoolin up right....its like studdering at 2200 rpm in every gear right?

RedSuns · 06-08-2002, 07:38 AM

I didn't have a boost leak....one of the MAFS wires was disconnected at the ECU...the engine runs like a champ now....

06-05-2002, 06:57 PM	#1
RedSuns Nissanaholic! Join Date: Jan 2002 Location: Northern VA Age: 43 Posts: 1,865 Trader Rating: (1) Feedback Score: 1 reviews	If I unplug the MAFS it does not affect anything.  That is what I believe it is.  I have checked and verified that there are no boost leaks or vaccum leaks.I really wnat to get my motor running. Johnathan S14 SR20DET __________________ Johnathan 2005 Titan 1996 240SX 1991 240SX 1974 260Z 1996 Honda CBR 600 F3

06-05-2002, 08:47 PM	#3
wherezmytofu BANNED Join Date: Nov 2001 Posts: 1,873 Trader Rating: (0) Feedback Score: 0 reviews	chekc the ignition system....normally when a car wont rev up...it's that  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=''>

06-06-2002, 05:26 AM	#4
RedSuns Nissanaholic! Join Date: Jan 2002 Location: Northern VA Age: 43 Posts: 1,865 Trader Rating: (1) Feedback Score: 1 reviews	what about the possibility of the MAFS.. __________________ Johnathan 2005 Titan 1996 240SX 1991 240SX 1974 260Z 1996 Honda CBR 600 F3

06-06-2002, 09:48 AM	#5
Kreator Nissanaholic! Join Date: Mar 2002 Location: MD Age: 41 Posts: 1,975 Trader Rating: (0) Feedback Score: 0 reviews	</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (cIvIcKILLA240style @ June 06 2002,06:26)</td></tr><tr><td id="QUOTE">what about the possibility of the MAFS..</td></tr></table><span id='postcolor'> It might be, but those things run for like $150 and i don't think you wonna spend that much money w/o making sure it's the maf.... i though have no idea how you could verify that the maf sensor is failing __________________ кто болеет за Зенит, у того всегда стоит!

06-06-2002, 10:15 AM	#6
camppain Will never get banned... Join Date: Sep 2001 Location: San Diego CA Age: 45 Posts: 1,510 Trader Rating: (0) Feedback Score: 0 reviews	does your car just rev up to around 2200 25oo go back down and shoot right back up? your car is basically in "safe mode" from what it sounds like. is an engine light on? i am pretty sure its your maf connector, did you wire it up correctly? i had the same thing happen on my sr20de in my sentra one of the maf wires broke on the connector harness. fixed the broken wire plugged it back in and the problem was gone deleted the code __________________ -=-99 Sentra SE 5 speed-=- -=-95 240 SE 5 speed-=-

06-05-2002, 07:53 PM	#2
BEISSEN Zilvia FREAK! Join Date: Nov 2001 Location: Woodbridge,VA Age: 42 Posts: 1,028 Trader Rating: (0) Feedback Score: 0 reviews	Hey johnathan if you need some help on you sr tommarrow just e-mail me or call me at 703-781-0414 or on my cell at 202-297-0220.

06-06-2002, 10:23 AM	#7
RedSuns Nissanaholic! Join Date: Jan 2002 Location: Northern VA Age: 43 Posts: 1,865 Trader Rating: (1) Feedback Score: 1 reviews	it will idle fine all day....but once I try to rev it it will rev up to 2200rpms and then no goes past...it just bounces back up to 2200rpms than back down to 2000rpms....does anyone know the proper voltage levels that are read at the MAFS... __________________ Johnathan 2005 Titan 1996 240SX 1991 240SX 1974 260Z 1996 Honda CBR 600 F3

06-06-2002, 11:52 AM	#8
sykikchimp WOW addicted Join Date: Dec 2001 Location: the moon Age: 44 Posts: 6,525 Trader Rating: (0) Feedback Score: 0 reviews	disconnect the MAF plug and start the car.  See if it does the same thing.  If it does, it's probably either the MAF sensor, or wiring like camppain said. __________________

06-07-2002, 12:15 AM	#9
MOTOREX_SR20 Join Date: Jun 2002 Posts: 10 Trader Rating: (0) Feedback Score: 0 reviews	This sounds exactly like what happened to me the other day when we were finishing up on my engine.  The engine would rev to ~2200 and then sound like it was hitting the rev limiter.  It ended up that the wires to the MAF were loose and we had to solder them again.  Hope this helps!!! Vernon MotoRex __________________ MotoRex Sales Consultant (see me when you want a Skyline!!) 92 RPS13 ~> blacktop SR20 equipped 99 Benz C43 ///AMG (just sold) 00 Porsche Boxster S (just stolen!!!!)

06-07-2002, 12:32 AM	#10
rotaryknight Zilvia Junkie Join Date: Apr 2002 Posts: 408 Trader Rating: (0) Feedback Score: 0 reviews	AHAHA Vernon Ken better not mess up on my install man. __________________ Daily Driver- 91 240 SX SE...S13 Blacktop HKS FMIC, EVC IV, W/G, Racing Suction, DP, Dual Drager, springs/pillow ball mounts Whiteline sway bars Tokico blues Koyo Radiator, Fluidyne fan J30 VLSD stock exterior. Fun Car- 94 FD3S (TO4S). The White HKS FD in FnF......may she rest in pieces.

06-07-2002, 12:28 PM	#11
SpoiledBoi Leaky Injector Join Date: Sep 2001 Posts: 89 Trader Rating: (0) Feedback Score: 0 reviews	is it right before u boost? if so, check all ur pipes and make sure they are secure and tight from the turbo to the intercooler and from there to ur intake manifold, i think they arent on tight enough and under pressure they are bleeding and its keepin the turbo from spoolin up right....its like studdering at 2200 rpm in every gear right?

06-08-2002, 07:38 AM	#12
RedSuns Nissanaholic! Join Date: Jan 2002 Location: Northern VA Age: 43 Posts: 1,865 Trader Rating: (1) Feedback Score: 1 reviews	I didn't have a boost leak....one of the MAFS wires was disconnected at the ECU...the engine runs like a champ now.... __________________ Johnathan 2005 Titan 1996 240SX 1991 240SX 1974 260Z 1996 Honda CBR 600 F3