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Old 06-06-2018, 04:32 AM   #34 (permalink)
cadoo
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Join Date: Apr 2018
Location: Lincoln city OR
Posts: 56
Drives: 2018 370z NISMO Tech
Rep Power: 7
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Quote:
Originally Posted by NissanTracker View Post
Picking up the Z tomorrow. I am going to remove the Stillen TB extension harness myself and extend the wires. Go through the song and dance for calibrating the TB's and report back if the p0300 went away.

-NT
So I have a 2018 370z Nismo and just got the stillen SC with oil cooler kit and upgraded radiator. The car has 600 miles on it and never had this p0300 code until the shop reported it before picking the Z up after the Stillen SC install. They did a smoke test and there was a small leak on the first cupler from the plenum. Driving home the cupler popped off. I since put on upgraded straps so the cupler no longer pops off when I hit boost but I’m STILL getting this random P0300 code. So annoying. I’m going to test for a leak in the cupler but if there is none I’m guessing it’s the stillen tune. I take my Z in this Thursday to get a custom tune and map from scratch and Dyno. If this doesn’t cure the problem I’m gonna go crazy. Somebody suggested colder heat range plugs w/a tighter gap. Will report back.
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