2G setting base (ignition) timing

[JuGs]

Ok I have a 95 gsx and I did a 6 bolt swap and some of you know. Im having troubles getting the ignition timing set. I need to know how to set it through link using a timing light. Im still new to link and havent had alot of experience with it. I dont know where to look in link to see what the timing is set to. I know the idle should be set to 750 but I have mine at 900. I like a little bit of a higher idle. I just need help figureing this out because Im getting bad knock and random rpms. i got every other issue worked out but my boost leaks, which I will be addressing as well after i get base timing set properly.

I want it to be in better to almost perfect running state before i start putting other mods into it. Im using the setup from my old car but none of its installed yet. so any tips will be much of help.

Do I just start a stream at idle and set it till it hits 5* on the stream. well more like 8* since its not grounded?

 

[Chicken Patty]

Ground the timing/diagnostics connector via DSM LINK (Found under Misc. Tab in V3), then using a timing light, adjust your CAS until you get it to 5º BTDC. Check out this thread. Once you get it to 5º BTDC unground the connectors your checked in LINK and you are good to go.

There is a link that has a very detailed explanation, but for some reason I can't find it to save my life.

setting base timing - Evo123.net - The early Lancer Evo and DSM source

 

[JuGs]

Ground the timing/diagnostics connector via DSM LINK (Found under Misc. Tab in V3), then using a timing light, adjust your CAS until you get it to 5º BTDC. Check out this thread. Once you get it to 5º BTDC unground the connectors your checked in LINK and you are good to go.

There is a link that has a very detailed explanation, but for some reason I can't find it to save my life.

setting base timing - Evo123.net - The early Lancer Evo and DSM source

Ok thanks I didnt know i had to use link to ground it. makes since tho I will try it out thanks for the help

also with base timing being off can that cause bad mpg? my o2 sensors are fine i just replaced them. went from just under 4 mpg to about 8 to 13 mpg

 

[Chicken Patty]

Ok thanks I didnt know i had to use link to ground it. makes since tho I will try it out thanks for the help

also with base timing being off can that cause bad mpg? my o2 sensors are fine i just replaced them. went from just under 4 mpg to about 8 to 13 mpg

Don't know but pretty sure it can. I do about 15 MPG with 1200's and E85 with AC on all the time, just for reference.

...and If I'm not mistaken, the reason for grounding it is so that it's not so jumpy on idle. Really helps you get a much better reading of what it is at.

 

[JuGs]

yeah Im getting bad mpg. stock injectors and 9 lbs of boost. I should be getting twice what I am. my other setup I was getting 22ish mpg 650cc injectors 20 lbs of boost

 

[Chicken Patty]

yeah Im getting bad mpg. stock injectors and 9 lbs of boost. I should be getting twice what I am. my other setup I was getting 22ish mpg 650cc injectors 20 lbs of boost

Yeah, that's pretty bad MPG.

Any boost leaks?

 

[talonesi95t]

Hello im having trouble setting the base timing on my car, Its a 97 tsi with a 1g cas. I dont have ecmlink so what wire do i ground to set the base timing?

 

[Chicken Patty]

Hello im having trouble setting the base timing on my car, Its a 97 tsi with a 1g cas. I dont have ecmlink so what wire do i ground to set the base timing?

Sorry for short reply, I'm at work now. But read through this thread, it should answer your question. Has wiring diagrams and such.

http://www.dsmtalk.com/forums/showthread.php?t=228991

 

[delta448]

Grounding the connector is only for 95-96s. There is no chassis connector to ground for a 97+. In order to put the 97+ ECU into fixed ignition timing mode, you need a scan tool or datalogger that can send the right command via the OBD2 connector.

 

[skatershawn]

He did mention he had a boost leak. I would highly recommend you fix the boost leak before trying to set you base timing.

 

[SpoolinTalonAWD]

Just for future reference, on my 99 GSX, we tried using a self powered timing light and it would not flash. Hooked it up to my brothers 5.0 and it worked great. Then I borrowed a Matco(If i remember right) light and it worked flawless. I set the CAS to 5* BTDC without link/ecuflash.

 

[m1nd64m3]

Unplug your injectors on 2gb and crank motor over to set timing.

 

[JuGs]

Yeah, that's pretty bad MPG.

Any boost leaks?

Im sure I have some and one part just came in i orderd so i have to install that and do a boost leak test. I messed up the stock bov(plastic pos) but i ordered a adapter for my greddy. hopefully i can get it installed and tested this weekend

 

[talonesi95t]

If i cant get my hands on a scan tool can the base timing still be set?

Grounding the connector is only for 95-96s. There is no chassis connector to ground for a 97+. In order to put the 97+ ECU into fixed ignition timing mode, you need a scan tool or datalogger that can send the right command via the OBD2 connector.

 

[Chicken Patty]

Grounding the connector is only for 95-96s. There is no chassis connector to ground for a 97+. In order to put the 97+ ECU into fixed ignition timing mode, you need a scan tool or datalogger that can send the right command via the OBD2 connector.

DSM Link being one of them correct? Also thanks for clearing up the model years that have the connector.

If i cant get my hands on a scan tool can the base timing still be set?

Yes, but like it says, you need a scan tool or datalogger.

 

[T is for TURBO]

Grounding the connector is only for 95-96s. There is no chassis connector to ground for a 97+. In order to put the 97+ ECU into fixed ignition timing mode, you need a scan tool or datalogger that can send the right command via the OBD2 connector.

Can you ground the pin 52 directly on the ECU for a 97+? Or is the pin not functional on those ecus? I was always curious about that?

 

[romeen]

Can you ground the pin 52 directly on the ECU for a 97+? Or is the pin not functional on those ecus? I was always curious about that?

AFAIK, that will not work. The only way to do this that I'm aware of (other than what has already been mentioned) is to use a 98/99 ECU and have it flashed to allow this procedure. In fact, our ECU's don't even have a terminal at pin 52. It's an empty space so it requires installation of a terminal/wire along with the ECU flash to make it work. This is how mine is setup. It works perfectly. I hated trying to match the constantly cycling logged timing value to the crank timing mark. It didn't go well with my OCD.