Cant Rev Pass 2000 RPM (AEM EMS) - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

ho1ywars · 05-30-2008, 03:10 PM

I feel like a freaking idiot. i just put in aem ems and configured all the sensors and stuff, start up the car, and it wont rev past 2000 rpms. checked all the rev limiters, grounds, connectors... im stumped. Any ideas?

redtop sr20det into an s14 if it matters

car ran fine on the power fc before this..

Champz · 05-30-2008, 04:43 PM

seems like it could be your maf sensor, check if its properly connected and working

ho1ywars · 05-30-2008, 05:05 PM

3.5 bar map sensor and ait, thanks though..

jakerps13 · 06-01-2008, 07:05 PM

Are you using the startup map aem gives you or a borrowed one? Sounds like a timing issue.
Check
Configure>
ECU setup>
Set ignition

Watch your timing as you rev it through and see what you get. I had the same issue, some reason an old map I had from someone elses car wasn't working for me, so I just started from scratch.

ho1ywars · 06-05-2008, 03:29 PM

calibrated the timing three times now.. same thing.. anyone else?

auk113 · 06-19-2008, 08:25 AM

do you have v. from MAP. if you remember you have to cut one wire on the d-jetro setup for the IAT. make sure that wire is reconected

*AceInHole* · 06-19-2008, 01:26 PM

Post the .cal file

jey_253 · 04-29-2009, 08:02 PM

Im having same problem on my rb25 now....weird. Ever figure it out? Factory ecu works fine just the AEM wont rev past 2k

05-30-2008, 03:10 PM	#1
ho1ywars Leaky Injector Join Date: Jun 2006 Location: Trenton, New Jersey Posts: 127 Trader Rating: (3) Feedback Score: 3 reviews	Cant Rev Past 2000 RPM (AEM EMS) I feel like a freaking idiot. i just put in aem ems and configured all the sensors and stuff, start up the car, and it wont rev past 2000 rpms. checked all the rev limiters, grounds, connectors... im stumped. Any ideas? redtop sr20det into an s14 if it matters car ran fine on the power fc before this..

05-30-2008, 04:43 PM	#2
Champz Join Date: Jul 2007 Location: Montreal Canada Posts: 29 Trader Rating: (0) Feedback Score: 0 reviews	seems like it could be your maf sensor, check if its properly connected and working __________________ Tooo Sloooow 4 youuuu!

06-01-2008, 07:05 PM	#4
jakerps13 Zilvia Member Join Date: Nov 2003 Location: Appleton, WI Age: 39 Posts: 171 Trader Rating: (0) Feedback Score: 0 reviews	Are you using the startup map aem gives you or a borrowed one? Sounds like a timing issue. Check Configure> ECU setup> Set ignition Watch your timing as you rev it through and see what you get. I had the same issue, some reason an old map I had from someone elses car wasn't working for me, so I just started from scratch. __________________ Lower than a pornstar's morals.

06-19-2008, 01:26 PM	#7
AceInHole Autox Technician Join Date: Dec 2001 Location: New Haven, CT Age: 43 Posts: 3,961 Trader Rating: (0) Rides Gallery: AceInHole Feedback Score: 0 reviews	Post the .cal file __________________

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05-30-2008, 05:05 PM	#3
ho1ywars Leaky Injector Join Date: Jun 2006 Location: Trenton, New Jersey Posts: 127 Trader Rating: (3) Feedback Score: 3 reviews	3.5 bar map sensor and ait, thanks though..

06-05-2008, 03:29 PM	#5
ho1ywars Leaky Injector Join Date: Jun 2006 Location: Trenton, New Jersey Posts: 127 Trader Rating: (3) Feedback Score: 3 reviews	calibrated the timing three times now.. same thing.. anyone else?

06-19-2008, 08:25 AM	#6
auk113 Leaky Injector Join Date: Sep 2005 Location: PA Posts: 124 Trader Rating: (4) Feedback Score: 4 reviews	do you have v. from MAP. if you remember you have to cut one wire on the d-jetro setup for the IAT. make sure that wire is reconected

04-29-2009, 08:02 PM	#8
jey_253 Join Date: Apr 2009 Location: Ga/Va Age: 37 Posts: 1 Trader Rating: (0) Feedback Score: 0 reviews	Im having same problem on my rb25 now....weird. Ever figure it out? Factory ecu works fine just the AEM wont rev past 2k