Compression Ignition Addict
Join Date: Dec 2007
Thanked 262 Times in 253 Posts
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You need to expand on that IDM code though...
P1316 it telling you that the IDM has codes that will direct you to what it "sees" as a problem (take the guess-work out of it for you). To do this, you need to use a diagnostic scanner capable of pulling IDM codes after it does a Buzz Test of the injectors.
That's where you should start, get the specific IDM codes that set the 1316 (a code that, again, just tells you that there are IDM codes that need to be retrieved) in the first place...