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2g gst has me stumped

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GstRookie2G

Probationary Member
4
0
Nov 4, 2020
Independence, Missouri
hey all! I'm having an issue, and I'm brand new, so don't be too hard on me LOL. Haven't been able to find any helpful answers so far. My 98 gst runs just fine on cold start (even though it has a leaking flex pipe that im going to fix). When I drive it for a little bit and it gets up to temperature, after I shut it off the next time I start it up it runs extremely rough, and has no power. I almost have to floor it to get up the hill on my street. After it sits for a while it starts up just fine again. There is a cel on, but my scanner won't communicate with it at all.
Any help or suggestions on where to start would be greatly appreciated.
Thanks in advance
 
Could also be the coolant temp sensor. Might want to swap that out. Its cheap enough to replace.
 
There is a cel on, but my scanner won't communicate with it at all.
If it runs good enough to get to an autoparts store, drive over & have them scan it & get you the code(s). Would be better than guessing & throwing parts at the problem.
 
If it runs good enough to get to an autoparts store, drive over & have them scan it & get you the code(s). Would be better than guessing & throwing parts at the problem.
I tried. Eeprom is locked, so I haven't found a way to get into it. I have a much better scanner than they do, but don't know of anywhere that can actually get into it unfortunately
 
Thank you guys for the info, im gonna try these and ill update what fixed it.
 
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