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P0300, P0301, P0303, rough start up & coolant smell
Just bought a new-to-me S2k with 115k on the chassis and less then ~5k on a new engine. I've only driven the car a dozen times or so. On cold startups I've noticed the engine is a little rough starting, and there is a noticeable whiff of coolant. I have not been able to get anyone to stand in the back and see if any smoke comes out during startup. But after warm up, no smoke and the engine seems to purr normally. As of yesterday, CEL came on and codes read:
With the whiff of coolant during startup, I originally thought it may be a leakage in the heater core dripping inside the ducts (this happened in an 95 BMW I had). But with this CEL, I'm now concerned it could be a head gasket issue, but was doubtful with it being a fresh engine. But I do not have any (noticeable) loss of coolant. And no noticeable smoke while idle. Are the two issues even related?
Whiff of coolant ain't normal. Got time to send an oil sample to Blackstone Labs?
Could easily be another bungled rebuild. "~5k on a new engine" and "doubtful with it being a fresh engine" don't mean nothing. There's one, maybe two active threads regarding rebuild failures.
Your going to have to diagnose those codes. Could be a million different things. The coolant smell might be a huge clue. I'd try to chase that down first. That might bring you directly to what is causing the codes and the symptoms.
What do you know about the motor? Who built it? How was it built?
Whiff of coolant ain't normal. Got time to send an oil sample to Blackstone Labs?
Could easily be another bungled rebuild. "~5k on a new engine" and "doubtful with it being a fresh engine" don't mean nothing. There's one, maybe two active threads regarding rebuild failures.
-- Chuck
Yup, I just got some blackstone packs in. Just changed the oil less then 100 miles ago. Will that matter?
What do you know about the motor? Who built it? How was it built?
I did get a sales slip from the previous owner via the dealer I bought it from. I'll go fine it, but iirc it looked to be a crate motor. Also, in car, the block and head looked new. Working backwards from the car fax, I estimated the motor to have ~1000-5000 miles on it. One of the reasons I bought the car was because I thought this engine was new.....
What do you know about the motor? Who built it? How was it built?
Found out it was a reman from AAA Motors. It is only six months old. And it is supposed to have a 2 year warranty, but I doubt that warranty transfers through different owners.
04-18-2020, 05:23 AM
P0300, P0301, P0303, rough start up & coolant smell
Find a S2000 specialist.
Do a radiator pressure test, to see if combustion gases are leaking into the coolant?