Hey guys,

Since the 05 has an extra clutch switch from the factory (for that stock 5000 clutch saver rev limiter) I was hopping that one of the available switch options for the 2 step rev limiter was for that input.... but it does not apear to be the case. Am I missing something or will I have to run a wire over from that switch to a different pin on the ECU harness to use it with the 2 step?

Thanks

Keith

 

I don't think that the '05 has an extra clutch switch. Back when I had my stock ECU I was able to over-ride that stock 2 step by leaving the shifter in neutral until it was revved up, leading me to believe that the stock computer engaged that 2 step just based on the VSS showing 0 and the neural safety switch showing that the car was in gear. So, yes, if you wanted to use the clutch switch as your 2 step on the AEM you wound probably have to run a wire from the switch to one of the extra inputs on the AEM

 

Just found this searching... The 05 does in fact have a clutch switch for the stock rev limiter. I use it with DSMlink for the NLTS. I'm also searching for how to use this stock switch for the NLTS with AEM, just wanted to clear that up for the archives.

 

FYI, for the archives, found the info on another site. The stock 05 clutch switch is pin 43 on the harness. Swap it to pin 7 on the AEM ECU and use switch #4.

 

You dont need the clutch switch with AEM it is based off of VSS. My clutch switch is diconnected and my 2-step works great. At 6000 rpm it builds 16 lbs.

 

Pin 43 is the normal clutch switch used by the 03, 04, and 05 for the "starter enable".... don't the 05's have an additional switch?

Keith

 

Two step can be activated on your stock ecu.
Two step = anti-lag + staionary rev limit

Anti-lag is already active on the stock settings. You just need to set a stationary revlimiter to have "two step"

The anti lag load can also be changed through the stock ecu.

If you have AEM just have your tuner set it.

 

That's great for launching, but does nothing for NLTS


I didn't think that the lower clutch switch even went to the ECU? Though I suppose it has to have some way to know that the motor is "cranking" to set timing, fuel, ISC, and other factors, but I'm not sure how it goes about determining that...

I heard pin 43 from Groc on the AEM forums (very trustworthy source) and a local NEDSMer, the one who first adapted DSMlink for the EVO, so I tend to trust that this is correct. The way it works with DSMlink, it is definitely the upper switch, not the lower. I will double check just to the safe though. Or I'll get off my lazy *** and just try it.

 

Well, it works. Pin 43 in the 05 harness is indeed the TOP clutch switch. I swapped that to pin 7 (unused in the factory harness), and set the 2 step for Switch #4, ground=on. NLTS works just like it did in DSMlink, except that DSMlink offers a 3rd rev limiter for this function and with AEM you're stuck with your launch limiter.

 

Is there anyway to get the NLTS to work without having to swap the pins? can i just use the corresponding pin to 43 on the EMS? Does anyone know what it wouls be?

 

do you want to cut ignition instead of fuel first?

what are most of your 2 steps set at?

 

yea i am curious too

 

normally you cut ign a few hundred R's before fuel

most set ign at 6K to 6.5K and fuel from 6.2K to 7K depending on car, driver, clutch, and turbo

 

I cut fuel first since the stock turbo spools so easily. On v1.19 at least I select the softest rev limiter in the wizard, and set that to engage 200 rpm or so after fuel cut, and push ignition cut a few hundred higher so it's not really used. I build 8 or so psi on fuel cut only and don't need anymore.

 

You want to cut ignition first, and personally i never cut fuel.

For starters set the ignition cut to 6k rpm's, fuel cut to 12k, 2step below VSS to 6 or 8, and leave the retard rev at 12k.

If you can't build boost that well with this, won't be likely on stock turbo then lower the retard rev to about 400 or 500 rpms below the ignition cut rpm. When you do this you can't be on the 2step forever as it is retarded the timing to 17 and firing in the exhaust and your egts will start to increase. If left on too long you will melt the ex. valves and screw the turbo big time.

Hope this helps.