kurtnkegger
Rising Sun Member
Wes, I do get some black smoke. If you don’t mind, I would love to come get some tutelage on this engine. Can I text the number you gave? I’ll work around your schedule as far as getting over to you.
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Emissions Failure. Looking for mechanic
- Thread starter kurtnkegger
- Start date
gr8fulabe
Rising Sun Member
(159) Toyota 1HDT Boost Compensator Removal and Install - YouTube
This guy has a good video, but he pulls the whole top. the video at least lets you see what it is. It looks like you could access via removing that banjo bolt. But I haven't researched. I'll do some digging though
This guy has a good video, but he pulls the whole top. the video at least lets you see what it is. It looks like you could access via removing that banjo bolt. But I haven't researched. I'll do some digging though
wesintl
Moderator
no. that is the fuel ruturn iirc. the bottom pic with the safety wire and the coller on it is the fuel adjustment.
texts will cost .50c haha jk. text anytime
texts will cost .50c haha jk. text anytime
gr8fulabe
Rising Sun Member
He's talking about accessing this wheel to adjust the fuel during boost:
wesintl
Moderator
yep they both work and need different adjustments. you can turn the main fuel down to pass tho. then tweak it to when you want it.
rover67
Rising Sun Member
Matt’s last comment made me realize Diesels only isn’t an option. They only do 2wd.
Either way here it is, I was there Monday for another passing test on ‘lil smokey (Als Jetta)
I wouldn’t go get anything worked on there, seems like they aren’t great at actually fixing things and maybe screw ppl.
Either way here it is, I was there Monday for another passing test on ‘lil smokey (Als Jetta)
I wouldn’t go get anything worked on there, seems like they aren’t great at actually fixing things and maybe screw ppl.
Attachments
SteveH
Hard Core 4+
Kurt - Opacity defined here: https://drive.google.com/file/d/198fGfwCnyr0Rn9Z4Ho-i-Xx_Dhaay08D/view
“Opacity” means the degree to which an air pollutant obscures the view of an observer
expressed in percentage of obscuration, or the degree, expressed in percent, to which
transmittance of light is reduced by the air pollutant.
They shine a light through the exhaust stream coming out the tailpipe.
My diesel emissions station prints the torque and horsepower on the back side of the emission sheet - did yours? Also, it's worth noting that the emission test may not show max engine torque or horsepower, because of the way the dyno test is optimized for an emission test, not for horsepower.
From the same document (but, good luck reading this miserable thing)
The smoke opacity standard for all diesel vehicles of model year 1991
and newer subject to snap acceleration J1667 opacity tests, under Part A, IV.C.5. of this regulation shall
be 40% opacity.
The smoke opacity standard for all diesel vehicles of model year 1990 and older subject
to snap acceleration J1667 opacity tests, under Part A, IV.C.5. of this regulation shall be 55% opacity.
The smoke opacity standard for all naturally aspirated light-duty diesel vehicles subject to opacity
test under Part B of this regulation shall be forty percent (40%) opacity for (5) five seconds. The
smoke opacity standard for turbocharged light-duty vehicles shall be thirty-five percent (35%) for
five (5) seconds.
“Opacity” means the degree to which an air pollutant obscures the view of an observer
expressed in percentage of obscuration, or the degree, expressed in percent, to which
transmittance of light is reduced by the air pollutant.
They shine a light through the exhaust stream coming out the tailpipe.
My diesel emissions station prints the torque and horsepower on the back side of the emission sheet - did yours? Also, it's worth noting that the emission test may not show max engine torque or horsepower, because of the way the dyno test is optimized for an emission test, not for horsepower.
From the same document (but, good luck reading this miserable thing)
The smoke opacity standard for all diesel vehicles of model year 1991
and newer subject to snap acceleration J1667 opacity tests, under Part A, IV.C.5. of this regulation shall
be 40% opacity.
The smoke opacity standard for all diesel vehicles of model year 1990 and older subject
to snap acceleration J1667 opacity tests, under Part A, IV.C.5. of this regulation shall be 55% opacity.
The smoke opacity standard for all naturally aspirated light-duty diesel vehicles subject to opacity
test under Part B of this regulation shall be forty percent (40%) opacity for (5) five seconds. The
smoke opacity standard for turbocharged light-duty vehicles shall be thirty-five percent (35%) for
five (5) seconds.
kurtnkegger
Rising Sun Member
Thanks Steve. I went over to Wes’ place and he adjusted my fuel. There was a significant decrease in the exhaust plume after adjustment. I decided to stop where we were and will test again from there.
It was great meeting Wes, and got some good information from him.
Rising Sun is a fantastic place to get help and information. My HDJ81 ran great going home, so have high hopes it passes the next test.
It was great meeting Wes, and got some good information from him.
Rising Sun is a fantastic place to get help and information. My HDJ81 ran great going home, so have high hopes it passes the next test.
LARGEONE
Rising Sun Member
Primo (Wes) is the man!
kurtnkegger
Rising Sun Member
Follow-up emissions appointment set for Friday AM. I'll post up the results....Stay tuned, Kids!!
rover67
Rising Sun Member
GOOD LUCK!!!
kurtnkegger
Rising Sun Member
Well.....hell.
I got really close, but still failed. 35% is the magic number for my year.
I asked if they could turn the fuel down just a little more to pass while I was there....”Well, we don’t really work on these engines, but I can ask...”
Wrong answer. I’ll adjust myself with the new found knowledge from Wes, and set another appointment. I’m thinking if I turn down the fuel more, I’ll have to adjust the idle up a little. My idle is about 650, and don’t want my idle lower than that really.
I got really close, but still failed. 35% is the magic number for my year.
I asked if they could turn the fuel down just a little more to pass while I was there....”Well, we don’t really work on these engines, but I can ask...”
Wrong answer. I’ll adjust myself with the new found knowledge from Wes, and set another appointment. I’m thinking if I turn down the fuel more, I’ll have to adjust the idle up a little. My idle is about 650, and don’t want my idle lower than that really.
justin4045
Rising Sun Member
dang, so close!
rover67
Rising Sun Member
Getting closer! At least you are on the right track
wesintl
Moderator
dang. it was so high before. we figured we cut it about in half, which was almost the case. Just turn the fuel down a tad more. Don't mess with the idle though. You can bring it by if you want.
kurtnkegger
Rising Sun Member
So, I took a little time today to drop the fuel some more. I shut it down by another half turn of the screw, and when in gear, the idle rpm was under 600. I took it for a drive, and I had absolutely no power to get it going. I would have to get the rpms up to about 2000 before the converter took hold, and it would take off. As it is now, there’s some lag from throttle to “take off”.
I turned fuel up where idle is a little over 600 when in gear, basically turning fuel down maybe 1/6 of a turn from when I started. Throttle is at least responsive, and feels about where it has been after Wes turned the fuel down.
I’ll make a new appointment next week, and hopefully pass emission.
I turned fuel up where idle is a little over 600 when in gear, basically turning fuel down maybe 1/6 of a turn from when I started. Throttle is at least responsive, and feels about where it has been after Wes turned the fuel down.
I’ll make a new appointment next week, and hopefully pass emission.
wesintl
Moderator
If you get a pyro installed it will be easier to tune. sounds like you have it just about right.
Too much fuel and the unburned fuel carries more heat. using the pryo can you tell if your overfueling and getting it to the point you have enough fuel for power but not too much carring extra heat out the exhaust.
Too much fuel and the unburned fuel carries more heat. using the pryo can you tell if your overfueling and getting it to the point you have enough fuel for power but not too much carring extra heat out the exhaust.
kurtnkegger
Rising Sun Member
“Skin of the hair of a gnat’s ass” is how it was described how close it was to failing again....but I did PASS!
Opacity at 40mph was 34.8%, 35 is the limit. At least I can get plates and have breathing room to work/tinker on it.
Thanks again for comments and help! A special thanks to Wes for taking the time out to actually teach me and the initial fuel adjustment..
Opacity at 40mph was 34.8%, 35 is the limit. At least I can get plates and have breathing room to work/tinker on it.
Thanks again for comments and help! A special thanks to Wes for taking the time out to actually teach me and the initial fuel adjustment..
justin4045
Rising Sun Member
good to hear! Congrats