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Problem to start when the engine is hot
#77
i thought so, only IPPC sniffs CO2,( get my joke?, maybe they sniff too much CO2, and go batty?)
no foul. i enjoy seeing what's up there at ITV, truly! and all your poSts , and love solving a hard riddle...
YOUR CO IS HIGH for sure, (the ITV is lax (good! you Passed the test)

normal is 0.05 % at tail see that extra zero that is real. less than 1/10 of a percent volume
if engine is in closed loop the CAT is bad. for sure, easy,

id have to probe front and rear of cat to make sure engine was not a gross polluter, lacking a scan tool. they make tiny plugs to do this magic. 1/8"
no English translation needed , my wife can do but most science is Latin and can figure out context easy
PM me with attachments? click my name , then click PM me (for smog certificate)
or see bottom of fixkick.com my email is there ,graphically
but if only 1 test, i dont need your report. it's not a 5qas report. so not much good.

you are correct you fell below the 1% CO max, just by a HAIR.

the CO reduction in cat is 70-90% so either cat is weak or engine is way too high (but it will not be high if in closed loop at exhaust ports)
in your case a new CAT will not fix this problem.


4 or 5 gas?
that means the smog station measure all 5 gases, HC,O2,CO2,CO,NOX 1 ... 5 gas.
best of best test methods
in some countries they do only CO
since 1979 like we did then, Go /nogo
5 gas analyzer, tells you more whats happening,for sure 02 (oxygen present.
some stations here do only 3 gas, (no 02 ,no CO2)
see?
5 gas testing is best and the CAT intrusive test best of all. no better. period
an engine running, at STOICH closed loop, is 10 times less you reading, at exhaust ports.
i have data (left # is real right uncertainty variance)
0.09 +/- 0.07 % CO is our national average of all cars (CAT missing) 1995 (exhaust ports)
and 3 times less ,starting in 1996 on (obd2 upgrades) 0.03 +/- 0.01%
id call this 0,1 % (rounded off)
why is yours at 0,7% so close to 1%? lets see.... that...
it passes but something is terribly wrong,

your idle surge is ok, that don't make smog,
if not misfiring? or lean surge? (closed loop dropping in and out)



a ton of english below but the tests are good (California tests)
http://californiasmoginstitute.com/image...edures.pdf



conclusions (all fun)
your country is one gas country CO gas, that gas is ,carbon MON-Oxide. (the most nasty of all gasses, makes red blood cells zombie's)
like we did in 80s,..
it's ok, for sure easy to pass. super easy, total different from say California. (the test 3 gas)

your CO is high.
most cars with high HC HAVE 2 CHOICES.
1:REPLACE CAT AND HIDE IT (DOES 90% REDUCTION THIS STEP)] ( works only to rarely)
2: FIX ENGINE SO CO IS LOW. ITS NOT. BINGO.

Why do i say its not GOOD.
easy, normal is 0.1% from engine.
90% of 0.1 is what. 0.09 reduction so 0.1 - 0.9 is , 0.01% at tail pipe end
YOU HAVE 0.7%
but....

FACTORIALS:
what if cat is OLD 70% low BUT LEAGAL LOW spec
hummMM
means engine 3% (bad) minus 70% reduction, for 3-2.1= 0,9% just pass.
what is wrong here, engine bad,cat marginal
the truth here is i cant guess,,what actual engine is emitting
but im sure its dead wrong. doing the math all ways



FYI, my smog chits.
are max ave(avg) and meas
max = max allowed by law (different by engine and year)
ave means average of all cars like this, measured, true data. i real world.
meas = your car now live data


im sue your cat is toast , or insides missing
there are other cat tests one is with an IR pyro gun
same temp both ends means dead cat.

Its not easy to fix any OBD1 engine with no matching 0bd1 scan tool.
not at all
Your fuel pressure is ok
the 02 is new
Im thinking now its misfiring. at ilde, and at 2500 rpm, is the rear wheels on load rollers/???????

in calif this is what we do
worse case is good. example
1: if scared , all are in CALIf with old cars, a valid fear
2:and scared of the "gross pollution rules and STATUS.? sure you are, and the penalties!!!
3: stay out of the state in inspection stations for now....fear... knees shacking....
4: go to any ASE shop (pros) they drill hole front pipe of cat , called invasion test. cute name.
5: he then get engine to temp fully hot. and then with 5 gas connected, to new front test port (we use 02 sensor bung ring welded there)
6: what is engine HC and CO. sure high repair engine, (real engine CO, front) more tests on engines to cure it. now.
7: ok engine fixed now, what is HC and CO at tail pipe end, sure zero, (near)
8: put a plug in the new port so it dont leak. ours is 18mm x 1.5 pitch
seen here
http://www.fixkick.com/sensors/O2%20sens...m-bung.jpg
8: now go the Calif state inspection station. and pass. no penalty

this tactic works world wide. (not NOX that the long long story, avoid this)
http://www.fixkick.com
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RE: Problem to start when the engine is hot - by fixkick - 01-20-2016, 02:35 AM

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