Trouble code P0171 means: Fuel Trim System Lean (Bank 1) Trouble code P0300 means: Multiple Cylinder Misfire Detected
A full listing of diagnostic codes can be obtained from most General Motors dealerships. The Chevy Lumina has more than 500 diagnostic codes.
Trouble code P0171 means: Fuel Trim System Lean (Bank 1) Trouble code P0174 means: Fuel Trim System Lean (Bank 2)
You will need a diagnostic scanner to retrieve the codes.
To tell you to read the diagnostic codes.
p0171 andpo174 mean that you're car is running lean
Reading diagnostic codes is easy. The driver plugs the reader/scanner into the diagnostic port of the vehicle, and the scanner/reader will give a code if there is a problem, and tell them the type of problem.
last one to touch it is at fault!! take it back & make them fix it.
The P0300 code indicates random engine misfiring. The P0303 and P0304 codes indicate the cylinder #s where excessive misfiring is occuring.
Trouble code P0171 means: System Too Lean (Bank 1)
You must use a Diagnostic code scanner that can erase trouble codes.
P0422 talks about catalyst efficiency. P0300 is random multiple misfires. http://www.troublecodes.net/OBD2/Pcodes.shtml
Hi, Two ways to clear the codes: 1) Scan Tool or Code Reader that can clear the codes. 2) Repair the issue causing the code and WAIT until diagnostic system runs AND passes the diagnostic that failed. Good Luck!