I own a 2000 Saturn Ls1 and just failed emissions because my check engine light bulb is out. Now that I've thought about it, the damn thing's never been on since the day I got it. I've been duped. So, here's my question, how can I install the bulb myself since the Saturn dealer wants $200 to fix it.Any help is greatly appreciated!
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check the codes by going to a local parts store like orielly autozone or advanced they all do diagnostic checks for free. its something you should have done months ago when the light first came on. however with it flashing it means its a emission problem with your described problem it tells me its a bad catalytic converter remember to also replace your O2 sensor with it
First step is to have the code or codes read.If the "check engine light" is on there will be a reason and should be a code or codes to be read.Once you have the codes,you can determine the correction needed to get that "check engine light" out and a valid emissions test completed.Get back to us with the codes found.
the light is across one diode in the rectifier pack in the alternator, usually there are 9 of them, one of yours has failed, probably the failed diode is leaking current and draining the battery. In this instance the battery will be good (if drained) and the other 8 diodes will show a good charge.Get the current drain checked with everything switched off
the alternator has a circuit in it that illuminates the battery light on the dash.that circuit is most likely at fault but because the battery went dead once i would think your alternator is just about at the end of it's useful life.
Some vehicles require very specific drive cycles (called "drive traces"
if you perform them on a road simulator or dyno) to activate certain
self-checks like the catalyst and EVAP monitors.
As a general rule, doing some stop-and-go driving around town at speeds
up to about 30 mph followed by five to seven minutes of steady 55 mph
highway speed driving will usually set most or all of the monitors.
Consequently, if you're checking an OBD II system and discover that one
or more of the monitors have not run, it may be necessary to test drive
the vehicle to set the remaining monitors.
You should talk to a good emission tec, if this is not throwing a code, it is hard to say if that one of the components could be bad. O2,pump,convert, HeO2, every part of the emission system.
With a 1000 miles, and doing what is says above just before the test, and ending driving at the test should be plenty. If it is not, you will have to have each emission part checked, or when the computer is plugged in it might show a code that did not trip dash light.
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