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Ever since day one of installing my new injectors, I have had this issue. It's been the same for 10k miles and is way more noticeable now that the weather is cold. Fumes stink bad. The white smoke lasts until the engine is warm then goes away. Is this normal? I am sick of it. The truck did not do this with the (worn out) old stock split shots.
The truck fires right up in single digit weather, no problem.
I would say it is not normal. In the 20's on cold mornings and mine runs clean. We have really close setup.
I have to assume you changed the tunes to run the singleshots. Other than that I had a nozzle go bad and dump fuel in that made it smoke all the time, but that is different
than what you see.
With 160/30's it shouldn't smoke like that, but there are several causes to look at:
- Tuning - specifically cold temp timing.
- Injectors - specifically the quality of the nozzles.
- Sensor problem - specifically oil temp sensor malfunction or not reading correct temp
In a nutshell it's going to be a timing problem or it's the injectors themselves. An oil temp sensor that doesn't read low temps correctly would cause the PCM to revert to warm temp timing. Or the tunes themselves don't have the correct timing advance at colder oil temps.
There's a few instances where I've seen 30% nozzles and 100% nozzles act funny, it's because there are variations that can occur on those nozzle sizes due to how they are produced. So the quality of the nozzles can affect fuel delivery and would be most obvious in cold temps.
I would say it is not normal. In the 20's on cold mornings and mine runs clean. We have really close setup.
I have to assume you changed the tunes to run the singleshots. Other than that I had a nozzle go bad and dump fuel in that made it smoke all the time, but that is different
than what you see.
Thanks - tunes were changed, from Gearhead. I had them revise the tunes a bit as I am also at elevation (~5,500 ft) which helped a ton with black smoke, but not the cold start situation.
With 160/30's it shouldn't smoke like that, but there are several causes to look at:
- Tuning - specifically cold temp timing.
- Injectors - specifically the quality of the nozzles.
- Sensor problem - specifically oil temp sensor malfunction or not reading correct temp
In a nutshell it's going to be a timing problem or it's the injectors themselves. An oil temp sensor that doesn't read low temps correctly would cause the PCM to revert to warm temp timing. Or the tunes themselves don't have the correct timing advance at colder oil temps.
There's a few instances where I've seen 30% nozzles and 100% nozzles act funny, it's because there are variations that can occur on those nozzle sizes due to how they are produced. So the quality of the nozzles can affect fuel delivery and would be most obvious in cold temps.
Thanks for the tips - I just ordered an EOT sensor, $22 on ebay seems like a cheap thing to rule out.
The injectors were remans from Unlimited Diesel in Ohio, purchased through Gearhead. I called them just now and will be running some tests this week to see about a possible tune update.
I went through that system, yes. Stancor relay and all new Motorcraft plugs seem to be working fine. No issues starting with 15W40 in single digit weather.
I have the same setup with the same problems for several years now. I have way more white smoke on a cold start when I go to the Colorado mountains. When I cold start in Oklahoma I get the white smoke and fumes but I also get a code. I just thought I had a bad injector but now am very interested in what you find out.
I ran some Forscan data today... saw some odd things... like ECT warmed up to 220F or so then went to -250F, then slowly creeped back up to +220F... weird. I attached the CSV file here if anyone is interested.
I live in Denver at elevation so I feel that is a pretty relevant part of this too...
Here are some videos from today before and after a warm-up drive, it was 65F outside so not too cold
I ran some Forscan data today... saw some odd things... like ECT warmed up to 220F or so then went to -250F, then slowly creeped back up to +220F... weird. I attached the CSV file here if anyone is interested.
Ignore the ECT. Just look at EOT.
Let the truck sit overnight and check when it's cold to see if EOT is close to ambient temps. If not, then there's a problem with the sensor.
Let the truck sit overnight and check when it's cold to see if EOT is close to ambient temps. If not, then there's a problem with the sensor.
EOT on Forscan was about 10F below ambient when I ran the cold start today, which makes sense as the sun hadn't fully warmed it up. As the truck warmed it also came up to what I would call normal temps, just a tad below coolant temp on a 15 minute drive. (180 or so)
The CSV file also shows some weird into for EOT... starts at 111 (cold start) and goes up to 180 with a lot of random values also thrown in.... 45 here and there, etc. That's not what the app was reading during the drive.
EOT on Forscan was about 10F below ambient when I ran the cold start today, which makes sense as the sun hadn't fully warmed it up. As the truck warmed it also came up to what I would call normal temps, just a tad below coolant temp on a 15 minute drive. (180 or so)
The CSV file also shows some weird into for EOT... starts at 111 (cold start) and goes up to 180 with a lot of random values also thrown in.... 45 here and there, etc. That's not what the app was reading during the drive.
I park in my garage, but I will look at my EOT in the morning before I start. Then I can leave it outside the next morning and see what the values look like. Its very interesting that we have the same sticks, the same tunes and the same problems.
I park in my garage, but I will look at my EOT in the morning before I start. Then I can leave it outside the next morning and see what the values look like. Its very interesting that we have the same sticks, the same tunes and the same problems.
