Question about 1999 Saturn SL
Yea the car will not recurculate the unburned gas the EGR recurculates the emissions so you get better gas milage
Posted on Jul 15, 2009
Yes this will effect your car's gas milage and emmisions.do replace it when possible.however it is still drivable.hope this helps
Posted on Jul 15, 2009
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Posted on Jan 02, 2017
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Feb 20, 2016 | Audi Cars & Trucks
Sep 23, 2014 | Cars & Trucks
Multiple Misfire Detected
Air leak in the intake manifold, or in the EGR or PCV systemBase engine problem affecting two or more cylindersCMP or CKP sensor signals erratic or out of phase.EGR valve stuck open, or EVAP purge system has failed.Fuel delivery component fault that affects more than 1 cylinder. (i.e., contaminated, dirty or sticking fuel injectors).Ignition system problem affecting two or more cylinders.Vehicle driven while quite low or until it ran out of fuel.Here is what is listed for this code.To find out exactly what is wrong,replacing good parts to find out is expensive,if you need a oil change take to Nissan dealer and they will scan your car and find problem and tell you and how much,you have the option to let them fix or go fix yourself and they won't charge you for the info.,just the oil change,I take my vehicle to dealer to get oil change for the free scanning.
Jan 26, 2013 | 2000 Nissan Maxima
Common in automobile emission systems since the early 1970s, the EGR (Exhaust Gas Recirculation) valve controls an engine's emission of smog-causing nitrous oxides, or NOx. Its job is to route a portion of the exhaust gases back into the intake manifold. That lowers combustion temperature to below 2,500 degrees Fahrenheit - the temperature at which NOx gases form.
EGR flow is controlled by the engine's computer, which opens or closes the valve as needed. The EGR system is, for the most part, in the "out of sight, out of mind" category, and typical doesn't require regular maintenance. But if it gets clogged with carbon deposits, you'll see your "check engine" light come on, and a code (perhapsP0401or P0402 or P0403) will show that there is insufficient flow. That typically results from a vehicle being driven persistently on short trips that don't allow the engine to fully warm up. Flow problems also can be caused by carbon buildup due to failure to change the oil frequently enough.
A clogged EGR valve not only results in higher emissions, it can affect fuel economy and cause rough idling - even serious engine damage. Valves can usually be cleaned, but replacement is often recommended.
Advice? Make sure to put on some highway or freeway miles, and always change the oil according to the maintenance schedule in your owner's manual.
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