Question about 1990 Ford Thunderbird
The upstream O2 gets replaced every 100,000 miles
Won't run really bad if you just have a check light on
but performance won't be so good.
Posted on Dec 05, 2012
SOURCE: oxygen sensor
yes it does. Your computer can not calculate how much gas is needed for real and that will make it run rough to say the least. To change them is quite easy
just in front or just after the first bend of your exhaust.
unplug and unscrew.
Posted on May 17, 2008
SOURCE: smog failed cause cam sensor
You should check the make sure the thermostat operates normally and that the fuel octane is 87 or higher (usually the lowest grade available at the station, so I doubt this is the issue). If your engine temperature isn't too high and the fuel is 87 octane or more, I'd expect you probably have a catalytic converter issue
Posted on Jun 24, 2008
SOURCE: oxygen sensor keeps going bad,
It could be the problem or he just wants to make a lot if money. I had a similar problem and it turned out to be electrical. I had another component out that caused an abnormal electrical condition, it could be happening to you. Check to make sure the sensor is within it electrical limits, (volts, amps, and ohms) and then refer to your vehicles electrical schematic to find relative components within the system. Don't go rippin into you motor, yanking off the heads, until you eliminate the problem as being electrical. get a good multimeter and remember, its only a 12v system. good luck
Posted on Aug 15, 2008
I decided to check the idol air control valve,when I removed it I found the problem right behind it. The P C V valve hose was just about into where it fastens to the intake,the other end was bad also. Cost me aout $6.00 Where auto parts stores were telling me parts would cost two or three hundred $$.
Posted on Jan 21, 2009
It either has a vacuum leak or a dirty MAF. To test for vac leaks spray the engine with carb cleaner to see if the engine speed changes., if it does you fond the leak. The most common leak is pcv line coming straight off the back of the throttle body. Check there first. Also check to make sure there are no air leaks between the throttle body and the mass air flow. Don't replace the idle speed motor or the tps, they won't fix it. It is possible the o2 is the problem, but it usually isn't. P0107 Is usually always from the stuff i listed above.
Posted on Mar 01, 2009
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