What happens when you change the battery on a car?
What happens when you change the battery on a car?
Replacing the battery or even simply disconnected the battery on a vehicle will cause the engine control unit (ECU) to reset and clear all the emission monitors (and trouble codes; if any existed). Emission monitors are needed to be READY or COMPLETE in order for the vehicle to pass the smog check.
Why did my car fail the emission test?
A couple of weeks ago I changed my battery but had not driven the car much before taking it to inspection and promptly failed the emission test because the evaporative, catalyst and O2 systems were not ready. Since then I drove about 100 miles with a mixture of local roads and highway over a 4 day period.
Can a bad car battery cause engine problems?
So before you go throwing out your bad battery for a new one just to find out that there are other problems you should have addressed FIRST, make sure it is truly your battery that just needs replacement.
How to pass car inspection after changing battery?
4) get into the car, take it for a drive of various speeds, starting at 25 mph for about 1-5 miles….as time goes on, increase your speed to the LEGAL SPEED LIMITS on your roads…DO NOT SPEED. If you can, THEN get on the highway, and go the SPEED LIMIT for about 5-10 miles….
Replacing the battery or even simply disconnected the battery on a vehicle will cause the engine control unit (ECU) to reset and clear all the emission monitors (and trouble codes; if any existed). Emission monitors are needed to be READY or COMPLETE in order for the vehicle to pass the smog check.
A couple of weeks ago I changed my battery but had not driven the car much before taking it to inspection and promptly failed the emission test because the evaporative, catalyst and O2 systems were not ready. Since then I drove about 100 miles with a mixture of local roads and highway over a 4 day period.
4) get into the car, take it for a drive of various speeds, starting at 25 mph for about 1-5 miles….as time goes on, increase your speed to the LEGAL SPEED LIMITS on your roads…DO NOT SPEED. If you can, THEN get on the highway, and go the SPEED LIMIT for about 5-10 miles….
Can a weak battery cause a car alarm to go off?
If in doubt, have a professional take a look. A weak battery can cause numerous malfunctions and if one of them happens to be within your car alarm, you might wind up giving the entire neighbourhood a 3 a.m. horn-blast serenade for no reason at all.
