2002 Toyota Sienna "hc ppm idle fail" Questions

...HC (ppm) , Cruise Emissions 281 HC (ppm) FAILED. Idle limit 220 HC (ppm), Idle emissions 819 HC (ppm). Runs good , but has hesitation when first acceleration like worn timing chain and gears. and boy ...

...hc ppm idle on a 1996 chevy suburban 454 truck Hi! First of all, HC (Hydrocarbon) are the residue of petroleum based product combustion. If your HC reading are higher than the OBD2 legal limit (220 ...

...HC ppm 396, CO% .50 @ 2500 RPM 2482, co2 15.1, O2 0.0, HC ppm 11, CO% .01 the truck was listed as a gross polluter, the fuel cap failed funtional test and the check engine light came on in the middle ...

hc = 36 ppm = pass (max 200) Natural idle test co = 0.54% = Fail (max 0.50%) the car had a new cat fitted around 6months ago along with new ht leads. Any idea's to get that 0.04% drop in idle would be

hc ppm was100 max and i was putting out 848 what should i do. the high idle test at passed fine max is1.0 and i was.95 May not be much you can do yourself without a scanner and an exhaust gas analyzer

fail inspection for HC ppm low idle what year truck is it and what are the all the number s they gave you it all helps out

HC ppm 559. standard is 220. man at inspection said was missing at high idle,what can cause that?? First either replace or clean the idle air control valve.You can clean it with a non-chlronated brake

...ppm difference in HC emissions so it's not likely that it could cause your numbers by itself. Metros have an O-ring seal around the injector in the throttle body. Sometimes that goes bad which lets ...

hc ppm reading 485 allowed 189 also CO% 10.50 ALLOWED 2.36 WHAT CAN I DO TO CORRECT. JEEP RUNS LIKE ****.....IT STALLS WHEN I EXCELLERATE.....BURNS LOTS OF GAS......IDLE IS IRREGULAR sounds like a bad

HC ppm limit = 52, Reading = 17 Passes CO% limit = 0.29, Reading = 0.00 Passes curb idle HC ppm limit = 150, Reading = 13 Passes curb idle CO% limit = 0.70, Reading = 0.00 What are the possible causes