I drove highway for 30 mins before my 2nd smog test, still failed.Parents had a vehicle fail because they drove it just 2 miles to the testing place, then it sat for probably 20 minutes. Truck probably had 20k on it. I told my mom to take it for a good drive then go back. Passed with flying colors.
i changed oil, cleaned out the filter and used GTP, still didn't pass. how do i retard the distributor? I don't have tools.I am the King of getting an oil-burning 95 Accord through dyno emissions. One center kicked me out for clogging their filters. That was towards the end of the car's life, it was unpassable by then. I think I still have the slip.
Fresh oil. Take the air filter out. Bottle of Guaranteed to Pass. Retard the distributor, it will get that exhaust HOT. These are some of the tricks. Bump the tires up to 50PSI to cut the rolling resistance down.
i changed oil, cleaned out the filter and used GTP, still didn't pass. how do i retard the distributor? I don't have tools.
Don't retard the timing...a properly performed emission test will check timing as well, and fail you if it is out of spec.i changed oil, cleaned out the filter and used GTP, still didn't pass. how do i retard the distributor? I don't have tools.
High hydrocarbons are from unburned fuel, or excessive burned oil. Plugs, wires. O2 sensors can help. High NOx is usually from lean burn issues.I am looking for advice on how to pass smog as my car failed. it's a Honda Accord 95 with 166k miles. Before this test my car was in the shop for 2 months so it was not driven often. I often drive city only, not highway. I only drove 10 minutes to city for this test from a cold start.
test:
15 mph
hydrocarbons max is 61, I measured 66
25 mph
hydrocarbons max 37, measured 70
tech said I had unburned fuel due to high hydrocarbons.
After this, I added a whole bottle of Redline SL1 to 1/4 tank and 93 Shell Octane gas to a full tank. I have been driving over 200 miles so far, mostly all highway. Should I use Guaranteed to Pass or Isoheet after I exhaust this full tank of gas? Or is driving all highway now enough to burn off the unburned fuel? I check my exhaust and see black soot build up.
I'm passing real world info on a similar issue that can be useful to anyone reading this thread, thank you.Hopefully Jaker04 got his car to pass emissions somewhere between February and now, since pishta is hijacking the thread with his '82 Mazda whatever.