Ecotec SAFC-2 Installation - Boost Forum

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Ecotec SAFC-2 Installation
Saturday, March 12, 2005 4:20 PM
Well, in my pursuit of a boosted Ecotec I managed to get my SAFC wired in. Right now its really nothing more than a pretty screen that shows RPM's and throttle position because I haven't gotten larger injectors yet.
I thought I would throw a couple of tips on here and also a big thank you to the j-bodies of N.Y. for their guides for the Ecotec.
If you are going to be putting one of these on your Eco and you are new to this, most def. print out the :
-Ecotec PCM pinout
-AFC install for 2.3/2.4--->this is different than ours, but certain steps contain similarities and it will help out
-Ecotec E-manage PCM connections sheet----this lists the pin and color of various wires that are also used in the SAFC-2 install.

^these can all be found @ <www.ny-jbodies.org>

These will all help quite a bit and only take a minute to find and print out.

Re: Ecotec SAFC-2 Installation
Saturday, March 12, 2005 4:43 PM
having any issues with your map sensor?



LE61T PTE6262 Powered

Re: Ecotec SAFC-2 Installation
Saturday, March 12, 2005 5:39 PM
I was ok almost the whole way back to Akron tonight but then the check engine light popped on just like clockwork. I had completely forgotten about Mr. Pute's/Arnjolts post where they wired in that resistor to help with low voltage. Hopefully I can fix this with their little cure. I wonder why it didn't pop the check engine light on right away though?
Re: Ecotec SAFC-2 Installation
Saturday, March 12, 2005 6:16 PM
I have been cursed with the low voltage light on my eco turbo setup as well. Haas tells me that the Map Signal Modifier (MSM) that was sent with my kit is suppose to prevent the check engine light. However... I still have the CEL. I've been playing with the voltage on the MSM, following every suggestion Haas makes, but I am having NO luck. I currently have the voltage on the MSM at 4.89. I'm told by Haas that the fix listed in Mr Pute's thread will not work properly because...

"because the resistors dont fluctuate with the car and will throw a code"


Personally, I dont know enough about how the resistor or the MSM works with the map sensor so all I can do is try every suggestion given.

blueakron04 - If you get the CEL to go off, maybe you can help me out, I live in akron (by summit mall)



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Re: Ecotec SAFC-2 Installation
Saturday, March 12, 2005 6:27 PM
TwistedSystem wrote:I have been cursed with the low voltage light on my eco turbo setup as well. Haas tells me that the Map Signal Modifier (MSM) that was sent with my kit is suppose to prevent the check engine light. However... I still have the CEL. I've been playing with the voltage on the MSM, following every suggestion Haas makes, but I am having NO luck. I currently have the voltage on the MSM at 4.89. I'm told by Haas that the fix listed in Mr Pute's thread will not work properly because...

"because the resistors dont fluctuate with the car and will throw a code"


Personally, I dont know enough about how the resistor or the MSM works with the map sensor so all I can do is try every suggestion given.

blueakron04 - If you get the CEL to go off, maybe you can help me out, I live in akron (by summit mall)


I'm in the same boat. With my Ecotec its been learn as I go. Luckily I haven't destroyed anything in the process yet, but then again I haven't really gotten very far. And bro, if I get the damn CEL off I will be more than happy to help you.
Re: Ecotec SAFC-2 Installation
Sunday, March 13, 2005 2:07 AM
(off topic) really i didnt know that you 2 lived that close to me i live in medina. anyways blueakron04 do you have your sensor setting to pressure with 5in & 5out?
Re: Ecotec SAFC-2 Installation
Sunday, March 13, 2005 9:40 PM
I have mine set to 5 in and 5 out right now. I remember someone talking about 4 in and 1 out a while ago. Does anyone have any info on that setting or if it will work. For some reason those numbers are stuck in my head.
The biggest PITA with this whole thing is that I drove around for about 35-45 minutes after I got it installed. I didn't get any warning lights and I haven't touched the correction for fuel so the car ran fine. Then I got carried away with the electrical tape so everything would be safe from the weather and salt that gets up into the engine bay. Now I have to cut all that out and try to wire the resistor in. Oh well.....I think everytime I hear my blow off valve, I'll think about the work it took and it will sound even better.
Re: Ecotec SAFC-2 Installation
Monday, March 14, 2005 10:06 AM
it was prolly me you heard talking about the 4 in 1 out i dont have a ecotec but after reading my safc manual it suggest that any car that is not listed in the book should have the same in and out setting i dont know why but it says it maybe ill scan it if i get some time oh heres right off the sight itself

http://www.apexi-usa.com/electronics_safc_functionaloverview.asp

about halfway down under etc. mode
i had to use two 330 ohm resistors wired in series to get mine to work right i used to use 4 in 1 out till i read that, i think it works better on the 5 in 5 out



"dude, thats a girls car"
NOT ANY MORE!!! PSHHHTTT!!!!
Re: Ecotec SAFC-2 Installation
Monday, March 14, 2005 10:21 AM
TwistedSystem wrote:
"because the resistors dont fluctuate with the car and will throw a code"


wtf? Honestly, what the hell does that mean?

The 330 Ohm resistor on the MAP signal effectively cuts off about .2-.3 volts on the lower end of my MAP sensor. Since the car uses the MAP as a barometric sensor before starting the ignition, the ECU will "shift" the entire map table up by that .2-.3 volts.

Going by the specifications of my GM 2 bar map sensor, my sensor will only be able to read 13.7psi versus the standard 14.7psi. This is due to the fact that the signal was shifted upward in the voltage range. You can't go past 5 volts (which is an indication fo 14.7psi on the MAP before the resistor trick, and 13.7psi after the resistor trick), because 5 volts is all the max power that's supplied to the sensor from it's power supply. Not to mention the 0-5 volt standard is probably encoded into the ecu as well.

I don't understand why the resistor has to "fluctuate" unless of course you are looking to go past 14.7psi. Then again, I see you are using an SDS EIC as supplemental fuel. I don't know anything about that unit. Does it come with a 2 or 3 bar map sensor? Regardless, if you plan to stay with 10psi or stay under 13.7psi, the resistor trick WILL work for you!!

Don't knock it until you try it

Every single car that has tried it at this point has had success.....




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