Setting base Timing on 95 GST

[JLangevin]

Ok, so can the 95 base timing be adjusted or is this completely controlled by the ECU? I know the cam angle sensor is behind the CAM gear which would seem pretty hard to turn... All the timing articles I see refer to 1g.

Any help or guidence would be appreciated. I want to check base timing since the car is acting very sluggish even though I just repaired a few boost leaks and has very little response to raised boost (16psi) - Thanks!

 

[greengoblin]

Nope sorry you can't change it on a stock 95.

 

[donmagicjuan]

Nope soory you can't change it on a stock 95. You need Adjustable Cam gears.

Uh, base timing refers to your ignition timing, and adjustable cam gears affect valve timing. Apples and oranges.

 

[diablos991]

If you are having little response to 16psi. I would guess that you are either knocking and pulling timing, or that you have a boost leak that you didn't fix.

 

[JLangevin]

Well, there is the brown plug on the firewall for grounding and setting timing... is this standard on all models, even those that you cant set timing on? I just want to verify that I AM at 5*btdc

 

[donmagicjuan]

You can't adjust the base timing unless you have a 1G CAS. All you can do is check it, and yes, that's what the brown plug is for. Here's another thread regarding the same thing.

http://www.dsmtuners.com/forums/showthread.php?t=216306&highlight=base+timing

 

[bluetlr2001]

On the link thats posted above it states that the 97-99 dont have the brown grounding plug is that true or do they have them. Ive tried finding mine to check my base timing. I have a 1g cas, but ive not seen the gounding plug on mine or ive overlooked it.

 

[donmagicjuan]

On the link thats posted above it states that the 97-99 dont have the brown grounding plug is that true or do they have them. Ive tried finding mine to check my base timing. I have a 1g cas, but ive not seen the gounding plug on mine or ive overlooked it.

If it's there, I've never found it. Then again, after learning that the timing isn't adjustable on my car, I stopped looking. I do know that there are many threads that discuss setting the base timing for a 6-bolt swap, however, which would probably cover your needs as well.

 

[kasper618]

The wire you are looking for is Black/Green in the smallest plug of the 4 going to your ecu. There is only 1 black with green stripe wire in the smallest plug. That is the timing ground wire. To adjust base idle, you would ground that black and green, and also the pink wire in the same plug just for info.