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does anyone know why my idle is perfect upon start-up, and then steadily raises to around 1300 rpms one warm. Does this have something to do with the thermostat? Or maybe the EVAP system? I've checked all of the vaccum lines ANY help much appreciated.
THANKS
 

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this prolly goes in the workshop....but sometimes i get that, it depends on the temp outside, i dont know if its supposed to so it or not, maybe ask next time your in for service
 

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BlkTurbo said:
does anyone know why my idle is perfect upon start-up, and then steadily raises to around 1300 rpms one warm. Does this have something to do with the thermostat? Or maybe the EVAP system? I've checked all of the vacuum lines ANY help much appreciated.
THANKS
Does this beast run smoothly otherwise ?
Maybe an external tach can be connected to verify accuracy.
The car should be warm within 3 to 5 minutes with a good t-stat and then run at 180 to 190..
I do not trust any car-makers gages, even if most are 90% true...

I note some modifications, maybe these are the source of the problems (if any)..
 
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