Quote Originally Posted by TOW'D View Post
Nice work Louey

Ok we got the 12 code then 31 or 13 (I'm pretty sure it was 31)
I looked it up and 31 can be the
canister purge solenoid
camshaft sensor or circuit
EGR circuit
shorted MAP
and
turbo over boost( no turbo)
park neutral switch(3.3L)
MAT (Cadillac only)

that flashing light sure is fast compaired to other makes I've seen

any idea what to do next
thanks
hank
Three of those codes stand out.The canister purge could be as simple as a cracked vac line which is pretty common.EGR is a simple as taking off the EGR and cleaning the carbon chunks out of it and replacing the gasket with a screen gasket from the help section of your local auto parts store to prevent it from happening again.A EGR would act like a vac leak and would effect the idle making it a rough idle.The MAP sensor would effect the fuel curve,But as stated,the codes has to be seen at a temp of 195.Fuel curves "could be" effect by the following senors:Map,Temp sensors,throttle position sensor,air idle sensor,O2 sensor.If it where me,I would get the engine to 195 and take a hard look at the very first code displayed because the other codes could be a result of the fault of the first one.The values of the first sensor to test confirm it is defective can be had on the Autozone web site.