Bad Smoking Until Warm...
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Bad Smoking Until Warm...
Hi guys,
I'm chasing a problem that has just arisen with my FD. It starts up fine but immediately it idles rough and is spewing oil smoke from the exhaust. Before the car is fully warm it can't be driven because it will stall out once gas and load are applied. Once the car reaches 76C all the problems disappear and the car runs fine. This problem has me stumped, I've just eliminated the FPD so I was in the rats nest but just went through it again and found nothing out of place. Track season is starting and I've missed the first track day already and need this issue fixed. Any help is welcome. Some notes, the PCV has been eliminated, its not the turbos as there is no oil in the intercooler pipes at all, and it still does it with the oil filler cap removed.
Thanks
Ryan
I'm chasing a problem that has just arisen with my FD. It starts up fine but immediately it idles rough and is spewing oil smoke from the exhaust. Before the car is fully warm it can't be driven because it will stall out once gas and load are applied. Once the car reaches 76C all the problems disappear and the car runs fine. This problem has me stumped, I've just eliminated the FPD so I was in the rats nest but just went through it again and found nothing out of place. Track season is starting and I've missed the first track day already and need this issue fixed. Any help is welcome. Some notes, the PCV has been eliminated, its not the turbos as there is no oil in the intercooler pipes at all, and it still does it with the oil filler cap removed.
Thanks
Ryan
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#8
DGRR 2017 4/26-4/30, 2017
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Hmm.. Not sure how much oil smoke but if its so much that you see oil coming out just after start up, I would take the turbos off to make sure its not your oil control rings. I would take the turbos off right after you crank (say 5-15 secs later), and see if its pre or post turbos. I've had 2 cars did this and it ended up being oil control rings.
#9
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Ryan, are you sure it's oil smoke? Is the car consuming oil?
Check your fuel injector duty cycle when it's warming up. Also check all sensor voltages in the PFC commander to see if anything looks out of spec (it'll be highlighted). It's in the 'etc' menu.
If all does clear up once the car reaches operating temp, then it's probably an odd problem. I doubt it's the oil control rings as that engine should have lots of life left.
Check your fuel injector duty cycle when it's warming up. Also check all sensor voltages in the PFC commander to see if anything looks out of spec (it'll be highlighted). It's in the 'etc' menu.
If all does clear up once the car reaches operating temp, then it's probably an odd problem. I doubt it's the oil control rings as that engine should have lots of life left.
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Ryan, are you sure it's oil smoke? Is the car consuming oil?
Check your fuel injector duty cycle when it's warming up. Also check all sensor voltages in the PFC commander to see if anything looks out of spec (it'll be highlighted). It's in the 'etc' menu.
If all does clear up once the car reaches operating temp, then it's probably an odd problem. I doubt it's the oil control rings as that engine should have lots of life left.
Check your fuel injector duty cycle when it's warming up. Also check all sensor voltages in the PFC commander to see if anything looks out of spec (it'll be highlighted). It's in the 'etc' menu.
If all does clear up once the car reaches operating temp, then it's probably an odd problem. I doubt it's the oil control rings as that engine should have lots of life left.
#11
Original Gangster/Rotary!
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Well, things can change once you start the car, but you can check the voltages with the key in the ACC position.
Worst case you can flatbed the car to us and we'll troubleshoot it for ya.
Worst case you can flatbed the car to us and we'll troubleshoot it for ya.
#12
DGRR 2017 4/26-4/30, 2017
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Yeah its definitely blue oil smoke, when I checked the oil earlier it looked good but I'll check again in the morning to be sure. I pulled the UIM off to check the vacuum lines today so I will check the duty cycle when its back together. If I just put the accessories on would I be able to check the sensors or does it need to be running?
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I'm going to try to get it going in a few minutes, it flooded on the last attempt to start it so i pulled the plug and dried them off. We'll see how that goes.
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I tried to start it up and it is flooding out still, I pulled the plugs and I'm going to let it dry out overnight then try again in the morning. Would injector issues cause blueish smoke?
#18
DGRR 2017 4/26-4/30, 2017
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I've troubleshoot a car that had bad injectors and it smoked pretty bad (I think the secondary was stuck open.. cant remember if it was primary or secondary)... But since I'm not there to see it, its hard for me to tell you exactly whats wrong.
Also, are you running any upgraded stock injectors (bored out stock injectors)?
Also, are you running any upgraded stock injectors (bored out stock injectors)?
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I'm starting to think that its the injectors as you guys are saying, would that cause a blueish smoke as well (always thought fuel=black smoke)? I'm going to check spark and I'll shoot a video of the smoke tomorrow so you guys can see what it looks like.
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Here's a video, the smoke is now whiteish. That was the closest I've gotten it to crank over since Tuesday. The plugs are drenched in gas as well.
http://www.youtube.com/watch?v=pINVxEYmBaU
http://www.youtube.com/watch?v=pINVxEYmBaU