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Fault Code Retrieval 5000TQ/early 200TQ


I don't know if you resolved your fault code retrieval problem but here is 
some info....

If I remember correctly from an earlier conversation we had some months ago,
 you have
the early MAC11 (single knock sensor) MC motor in your 200TQ. Your 
technique of inserting
the fuse in the fuel pump relay should work ok for fault code retrieval. 
Before the code
retrieval, you are supposed to drive the vehicle and rev the engine above 
and get the manifold pressure above 1.0 bar during this test drive. (i.e. 
stomp on the throttle)
to exercise all the components in the system.

After your test drive you need to keep the engine running otherwise any 
fault codes will be erased if  you turn off the ignition.  You should  
insert the fuse 
into the fuel pump relay for  about 4 seconds and then remove it. Inserting 
fuse into the fuel pump relay actually grounds pin 31 at the MAC11 ECU 
is the same terminal that turns the "check engine" light on and off. 

The first fault code  should blink out on the "check engine" light
on the dash at that point. If you have no fault codes show up then you will 
get the
code 4444 flashed out meaning all is ok. (at least the computer thinks 
everything is ok).  
If you do have a fault code show up then  inserting the fuse again for 4 
seconds should 
retrieve the next fault code if there is more than one stored. The 
diagnosis procedure
will be cancelled if you raise the engine speed above 2000 RPM during the 
code retrieval process or if you turn off the key (no duh!)

If you have a no start condition then you can crank the engine over for at 
5 seconds and then leave  the ignition key "on" and retrieve any fault 
stored during the start procedure.

You can also run the "output" tests that can turn on the Fuel pump, mixture
 frequency valve, the Wastegate frequency valve, the cold start valve
(don't leave the fuel pump running or don't run this test too long
 or you could flood the engine!), and the carbon canister solenoid test. 
These output tests will cycle these components on and off in the above
sequence to verify they are functioning. The ignition key should be turned 
on, but the
engine should not be started . Insert the fuse as before for 4 seconds and 
you should
hear the fuel pump running to begin the output test sequence. Inserting the 
fuse again
for 4 seconds will change to the next output test in the sequence.

Scott M.