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Nissan's "check engine soon" light is the Emissions System. If the light comes on, make sure you tighten your gas cap. Emissions residue can also build up on the inside of the fuel neck. Wipe clean and reapply the gas cap. This should make the light turn off within 20 miles or so. If the light doesn't turn off, you may need to take it in to the dealer for a diagnostics check to make sure you do not have a leak causing emissions to escape. Also, disconnecting your battery for about 30 minutes will reset the emissions control. The 'check engine light' is really more of a nuisance than anything else.
You will fail emissions. If you dont figure out a way to make that EGR work.
The Check Engine Light comes on when a performance or emissions problem is detected. The OBDII diagnostics need to be scanned to retreive the trouble codes to determine where the problem lies. AutoZone will scan for the codes at no charge.
Could be you need diagnostics reset or catalytic converter on the way out
have vehicle serviced and catalytic converter checked, also have dealer check for service recall on vehicle.
Check your gas cap to make sure it seals tight. My check engine light comes on every now and then in my 1991 Camry and once I reseat the cap it goes out almost immediately. If this is not the problem have a mechanic check the oxygen sensor. Good luck, JFD EGR Va.ve? It might be your EGR valve which is part of your emissions system. My 1997 Celica passed the emissions test but the EGR valve still needed to be replaced. After it was replaced, the check engine light went off. The part cost about $75 from a Toyota dealer.
Check engine light. It means there is a problem with the emissions system. Take it to the dealer for repair.
I also have a "service engine soon" code P0430 showing in my 2001 Tracker 4 wheel drive. I need to know what this code means so I don't have to pay for the diagnostics test again to fix it. My car is overheating when it idols and I'm unsure if the engine fan is going out or if this is due to the P0430 code.
The voltage regulator is part of the engine computer. That will have to be replaced by the dealer.
If the check engine light does not flash when in the diag mode, the problem is the computer. Could be as simple as a failed lamp driver but a failed computer is toast and will need to be replaced/
Check the O2 sensor.
I would take that to mean the equipment that cleans up the vehicles emissions is removed from the engine.