Why would retarding timing pass emissions?
- Thread starter LamaRossa
- Start date
Advancing the timing works, because you are leaning out the AF mixture...which reduces hydrocarbons...
In Ca they are supposed to check your timing, and if they see it is at 4 deg they will fail you on that alone. It has two be within a degree or so of what it says it should be on the sticker on the hood.
There is something wrong with your car. It could be that engine timing is off, or camshaft position sensor is off. All you did is bring it back in line by moving it.
Just a guess.
Just a guess.
Advanced timing often will result in high CO emissions and sometimes marginal HC too. Retarding the timing will lower CO and HC emissions, but you have to ask yourself why they are high in the first place.... something else is wrong.
emissions yes, by virtue of longer burn time, but AF is completely different. it's the same AF ratio, just more of it is being burned is all.
I hear ya. The thread is weird to begin with. "Shine a light on it?" Is that an intentional pun?
Johnathan is still learning but he's OK. Coming along well all things considered. Still rough around the edges though
Johnathan is still learning but he's OK. Coming along well all things considered. Still rough around the edges though
Money or time. Takes a lot of it for sure. Maybe what he was getting at was how the O2 sensor would react to the change in emissions and what would happen to subsequent injection. Either way I agree with Nick: the guy should fix the car right instead of "cheating".
I'm all in favour of cheating. an e-test is a great indicator of the health of the motor. now you know it's not healthy and how to get it thru the e-test, carry on and then start working your way thru stuff on your own terms, not ones dictated to you by the government.
The problem with that approach is most people would take advantage of it and not do the repairs. This guy has cheated twice for example. Cheating only forces the state to toughen up the regs even further. That's what happened in California. Because of fraud it's all automated these days. This guy wouldn't have been able to cheat by timing. Imo that's the way it should be. It's a stupid system though. It proves the engine is in compliance only during the test which in some places may be only every two years. That'll change in the future and the entire infrastructure now in place can be done away with.
I'll agree there are few better indicators of engine health. It's why I own a gas analyzer and test all my vehicles twice a year. Great troubleshooting tool too. It's another reason I'm puzzled by people's adversity to testing. Must be because they 1) don't like the gum'mint telling them what to do or 2) Are too lazy or cheap to invest in the knowledge and tools to keep their cars running right. Probably both.
I love how they split hairs too. For example I never see anyone advocating yanking off their O2 sensor and it's there purely for emissions. The bottom line is people who whine about e-testing should get over it. It's here to stay for the same reason as most law: people in general aren't responsible enough to do the right thing on their own.
I'll agree there are few better indicators of engine health. It's why I own a gas analyzer and test all my vehicles twice a year. Great troubleshooting tool too. It's another reason I'm puzzled by people's adversity to testing. Must be because they 1) don't like the gum'mint telling them what to do or 2) Are too lazy or cheap to invest in the knowledge and tools to keep their cars running right. Probably both.
I love how they split hairs too. For example I never see anyone advocating yanking off their O2 sensor and it's there purely for emissions. The bottom line is people who whine about e-testing should get over it. It's here to stay for the same reason as most law: people in general aren't responsible enough to do the right thing on their own.
Unless its a wideband with an adjustable switching point output. Then its a tool for making the TCCS do all kinds of neat stuff.jetjock said: