Chevrolet P1403: Exhaust Gas Recirculation Error (EGR Solenoid 1)
Is your scanner showing Chevrolet P1403?
No worries. We'll show you what it means and how to deal with it.
Chevrolet P1403: Exhaust Gas Recirculation Error (EGR Solenoid 1)
OVERVIEWWhat Does The Chevrolet P1403 Code Mean?
Engine started; ECT sensor more than 183ºF, vehicle driven to over 20 mph in 1st or 2nd gear to over 20 mph at a speed of 1000-1488 rpm, A/C Clutch “off”, then while in coast-down mode, HO2S signal more than 566 mv.
What Are The Potential Causes Of The Chevrolet P1403 Code?
- EGR tube is clogged or restricted, or the EGR valve is sticking
- EGR Solenoid 1 control circuit is open or shorted to ground
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
GM, 2013, Service Bullettin – Prior To Any Circuit Testing.
