First Start Issue - '97 Bathurst
I have been putting up with a first start issue for a while now, slowly trying to figure out what is causing it. The car is daily driven. Car:
1997 MR2 SW20 Bathurst
3SGE Gen3 Symptom:
First cold start after sitting over night the car will stumble with low idle for 30 seconds before idling correctly. However I can turn the car off instantly and restart and it will run perfect. As the colder months arrived the car was starting perfectly first time every morning, now the hotter weather is back the car is stumbling on first morning start. Things I have tried:
New distributor cap
New Coolant temp sensor
Intake temp sensor (borrowed from another car to test)
New Oxygen sensor
Cleaned the throttle body
Checked Idle control valve
Checked and replaced the idle control valve sensor (old one was still functioning within spec)
Fuel pressure checked
New fuel filter
Injectors cleaned and serviced, no leaks
Note: The car also has had it's major service during winter.
Edit: Car throws no error codes
Probably other things I have missed. I will add to the list when it comes to mind.
Any ideas/checks would be greatly appreciated.
post edited by Lumix - 2018/01/15 10:41:21