Car sat over night after running just fine and now has 500rpm cold start

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Aug 31, 2020 | 06:07 PM

Deew

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Joined: Aug 2020

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From: Key West

Car sat over night after running just fine and now has 500rpm cold start

Video shows idle. Already replaced spark plugs.

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IMG_1022.mov (1.71 MB, 21 views)

Sep 1, 2020 | 07:51 PM

Turblown

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From: Twin Cities, MN

Sounds like it running on one rotor. I would start with a compression check, and then verify all 4 coils are firing with a timing light( or visually with a spark plug grounded on the engine). Which ecu is on the car, are all the sensors reading properly?

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