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ECMlink 90 DSM just put on SD need help with log

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unchuchable

Proven Member
30
9
Jun 2, 2024
Seymour, Indiana
I have a 90 GST that I've been having problems out of.

When originally put on SD, everything ran fine but then I changed the throttle body and seemed to have all kinds of hell out of her for the last 2 years. Well I think I found my culprit in the MAP sensor connector was shorting out.

Now I've got her moving under her own power but I don't wanna mess anything up again so hoping I can post a few logs and have somebody with some knowledge help me out.

As stated the car is a 90 GST and mods are of course SD, FP manifold, bored .20 over then ARP headstuds and new gasket, Walbro 255 pump, TRE 1000cc injectors, FMIC, 2.5 turbo back exhaust AEM wideband in front O2, stock 14b turbo for now.

I am going to post 2 logs. First one is cold start and you can see how my AFR starts good then slowly goes lean. Second one is at operating temperature, it's only about 30 seconds long because the car dies and won't start back up. My battery jumper died so I figured this was at least a start to see what I may need to do to the car or in DSMLink.

Thanks beforehand with any and all help, its greatly appreciated!
 

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You are also getting some wild spikes during cranking that weren't in your earlier logs, or at least not the same way.
In your earlier logs you were having one wild spike when you first turn the key to crank, but not during cranking and not during running.
In this last log there are 2 or 3 or 4 wild spikes during each crank, plus the one when you first turn the key to crank.
They are a little different.
When you turn the key to crank it effects GMIAT. During cranking it doesn't effect GMIAT.
Well hopefully these spikes are just something that happens when you are using a battery jump starter, something related to that. We'll have to keep an eye on that.
I think just fix the Coolant Temp and try it again.
 
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