Soot Covered O2 Caused By Oil Leak in Turbo?
11-19-2015, 05:01 PM
#31
Highly doubtful. Even my old eecIV mustang wil drop into closed loop after a max two minute time delay. Most time it's much quicker.
Sensors get up to temp quick with their own heater circuit and I'd say even in those temps it's in closed loop in less than 30 seconds.
Sensors get up to temp quick with their own heater circuit and I'd say even in those temps it's in closed loop in less than 30 seconds.
11-19-2015, 10:53 PM
#33
Senior Member
Does it cause this with stock tune and custom tune?
11-20-2015, 09:02 AM
#35
Any ideas why when we had a stretch of weather last year around -25 degrees, the trucks ran really good? Is it because with it that cold the truck is not using readings from the o2 sensors very often(not going into closed loop because its so cold)? And using set fuel tables instead of feedback from the o2?
How do your other sensors look when data logging. Intake temp??
Could just be the dense air made up for the rich condition enough to make it more drive able.
I would say the answer lies in a drifted sensor, wiring problem (chafing, or corrosion) or a leaking injector.
11-22-2015, 12:53 PM
#36
What do your LT fuel trims do when you increase the throttle a few thousand rpm for a minute or so?
12-13-2015, 01:36 PM
#38
Senior Member
Thread Starter
So yesterday did a bunch of maintenance. New plugs, coil boots, cleaned map, air filter, and checked o2s. Truck had been running slightly better with temps in the 30's...and now both o2s are sooty.
Taking that into account, I did everything I could to make sure I was getting good spark out of the coils. I added dielectric to all the connectors, and to the outside of the seal on the top of the coil so when it slid into the tubes they wouldn't bunch up(been having that issue on a couple).
Truck is running better than it has in a while now after adding that dielectric to the connectors. This has me wondering if maybe the connectors are getting loose/sloppy and not getting full power to the coils, causing misfires. Or possibly moisture/condensation inside the connectors. I dunno, will keep driving it and see but saw a great improvement in the 100 miles I have put on
Taking that into account, I did everything I could to make sure I was getting good spark out of the coils. I added dielectric to all the connectors, and to the outside of the seal on the top of the coil so when it slid into the tubes they wouldn't bunch up(been having that issue on a couple).
Truck is running better than it has in a while now after adding that dielectric to the connectors. This has me wondering if maybe the connectors are getting loose/sloppy and not getting full power to the coils, causing misfires. Or possibly moisture/condensation inside the connectors. I dunno, will keep driving it and see but saw a great improvement in the 100 miles I have put on
12-14-2015, 11:02 AM
#39
I would still like to see LT and ST fuel trim data...
That would show you if you have a rich lean condition.
That would show you if you have a rich lean condition.
12-14-2015, 11:42 PM
#40
Senior Member
Thread Starter
Be interested to see it too now that it seems to be doing better. Got a new phone not long ago so have to figure out the code for the elm, hopefully tomorrow night can get a lil info