View Full Version : Code Readings
burt ragio
01-19-2015, 09:39 AM
Pulled tune out for inspection. It went well. After apx 350 miles check engine light comes on. Pluged in scan tool it pulled two codes P0174 & PO1000. What are the codes ?
RF Overlord
01-19-2015, 09:48 AM
P1000 is I/M monitors not ready. Normal after a tune change or if the battery was disconnected.
P0174 is System too lean bank 2 (driver's side).
RacerX
01-19-2015, 09:52 AM
Check all your vacuum hoses for any possible leaks.
burt ragio
01-19-2015, 10:05 AM
Thank you. Other than lean drivers side bank. Check for vacum leaks. What other things should I check afterwards in sequence ?
RacerX
01-19-2015, 10:12 AM
Check the headers. If there's any exhaust leak, it will pull clean air in as well.
JohnE
01-19-2015, 01:56 PM
You shouldn't need to take your tune out to pass inspection, if it was done properly.
RacerX
01-19-2015, 02:01 PM
Mass is horrible for trying to slip anything by. Can't have a damn thing turned off in the tune now either...
justbob
01-19-2015, 04:27 PM
You got a P0174 because your monitors are turned off in the tune more than likely..
Builder Of Badassery
chief455
01-19-2015, 08:37 PM
P1000 is I/M monitors not ready. Normal after a tune change or if the battery was disconnected.
P0174 is System too lean bank 2 (driver's side).
I've had this, cleared it and never came back.
O2 sensors touchy with long tube headers.
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