joe37705
Well-Known Member
So I took my toyota in for emissions and it failed on the cruise hydrocarbons part. I think the guy said it was 19 ppm too high. What do I need to look at to fix it?
87 22r carbed.
87 22r carbed.
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Help Support Hardline Crawlers :
Emissions ?'s
- Thread starter joe37705
- Start date
83YotaDlx
Member
do the basics
A thorough tune-up will include:
Replacing the air filter
Install new spark plugs and replace spark plug wires
install a new distributor cap
install a new rotor
PCV valve replaced, if clogged
Maybe check timing?
or go to shucks and buy the **** that guarantees you to pass (it's with the motor honey and stuff like that)
but im sure that was no help to you :Cracked:
A thorough tune-up will include:
Replacing the air filter
Install new spark plugs and replace spark plug wires
install a new distributor cap
install a new rotor
PCV valve replaced, if clogged
Maybe check timing?
or go to shucks and buy the **** that guarantees you to pass (it's with the motor honey and stuff like that)
but im sure that was no help to you :Cracked:
joe37705
Well-Known Member
Got the cap, rotor, wires, and plugs covered. As well as the timing, what about carb adjustments? Could it be running rich or lean? I'll try the air filter as well.
hydrocarbons are unburnt fuel.
If you have GOOD ignition parts OEM or NGK, and no misfires, check the AAP diaphram, make sure there is no fuel in it. other than that, best thing you can do is stick a new cat in it if the current cat is more than about 4 or 5 years old.
Make sure your charcoal canisters aren't saturated too.
If you have GOOD ignition parts OEM or NGK, and no misfires, check the AAP diaphram, make sure there is no fuel in it. other than that, best thing you can do is stick a new cat in it if the current cat is more than about 4 or 5 years old.
Make sure your charcoal canisters aren't saturated too.
Avanteone
Well-Known Member
HC Cruise failure I'd start with double check timing, vacuum advance, valve adjustment... since you've covered the basic tune parts. HC failure means SOMETHING is happening to cause the fuel that's being introduced to NOT be fully combusted.
John
John
83YotaDlx
Member
or u can have the cat i took off my truck that passed emmisions with FLYING colors since it's a 83 and i no longer have to pass emmissions
83YotaDlx
Member
WAIT WAIT run ur truck at the highest possible idle they allow without going over it and you should pass..... thats what i do 
1,050 rpm and 1,100 is the max
1,050 rpm and 1,100 is the maxjoe37705
Well-Known Member
Already ran high rpm it was like 1150 or something like that. Took 15 mins and the guy still had to bypass the computer cause it won't idle down.
I might take you up on that cat too. I don't know if the one I have is crap or not. Can't verify the age either.
I might take you up on that cat too. I don't know if the one I have is crap or not. Can't verify the age either.
83YotaDlx
Member
might wanna check ur linkage sounds like it's bent thats what mine did so i bent it back and put a chevy throttle return spring onto it and it always idles down now and the cat is urs if u want it... it is just sitting there waiting to do something lol
My Truck Emissions With webber.... i didnt think it would pass with the webber either
...............................HC..........CO
Cruise Limit:............160.........1.1
Cruise Emissions:.....133........ .31
Cruise Result:.........PASS.......PASS
Idle Limit:................220.........1.2
Idle Emissions:.........158........ .17
Idle Result:.............PASS......PASS
My Truck Emissions With webber.... i didnt think it would pass with the webber either
...............................HC..........CO
Cruise Limit:............160.........1.1
Cruise Emissions:.....133........ .31
Cruise Result:.........PASS.......PASS
Idle Limit:................220.........1.2
Idle Emissions:.........158........ .17
Idle Result:.............PASS......PASS
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