Quote:
Originally Posted by scorp38
No I'm not saying they were 200 degrees I'd say more like 100-120 sitting in traffic and not getting much airflow in the engine bay. But it has definitely only been when the temp hit 90 degrees here
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Ok,
those values definitely are in range at idle, but that's not hot enough to cause any lag.
Is the lag at WOT or light throttle?
If the former, it's almost definitely that the OEM tune just isn't as responsive as it could be (there's a whole thread on this with tuning code that can be cut and pasted into uprev).
If the latter, it could be any number of things including vac leaks, wonky sensor, etc. Even clogged air filters could cause that.
Tell us more about your set up. Is it all stock? Do you have any datalogging capability?