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Thierry25 Thierry25 is offline
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Join Date: Feb 2009
Location: FRANCE (Besanšon)
Posts: 310
Quote:
Originally Posted by 911st View Post
If you suspect it is on the fuel side, check your control pressures. Also make sure the connection between the manifold and WUR is in good shape. If you do not get a boost signal you would stay lean.

On the ignition side there is not much that can go wrong without a total failure I suspect. You might check that the inputs to the 69EZ are at spec. If you are not getting correct temp and manifold pressure info there it could be keeping the ignition advanced.

It is surprising how often fuel filters effect all car's drivability.

It is always good to have your injectors cleaned and checked for balance once in a while. Some diesel shops have the ability to do this.

Good luck.
+1 about what have been said by Keith ! All of this must be checked !

I run 1.2 bar on my 964 turbo ( which has SC/X33 cams) and there is absolutely no detonation or knock ...

You should verify that the hose between the intake pipe and the EZ69 is correct.... if this hose is disconnected , the ignition timing is set at 40░ ( so in this case, the knock occurs )

If you are not sure with your EZ69, it can be tested with a timing light
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965 C2T / 1991 3.3 TURBO
Old 11-03-2009, 03:34 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #11 (permalink)