5ktq electrical issues update...

[Cody]

Earlier in the thread (all last week) we were talking about this. My car is EFI. I guess some people may not notice that this is the same thread from last week since I started it with a slightly different subject line for this week.

-Cody


---------- Original Message ----------------------------------
From: Mike_Buckham at ptk.pioneer.co.uk
Date: Fri, 3 Oct 2003 10:34:02 +0100

>Hi Cody,
>
>I have been following your thread with interest, as I have engine retarding
>symptoms which may be similar to yours, but perhaps not. I don't think mine
>are electrical but fuel related. Normally, I cannot get full acceleration
>and full boost because the ECU retards the timing but I think it does this
>because the fuel regulator in the distributor is sticking - but that's just
>a guess. I've been putting in excessive amounts of fuel system cleaner
>fluid with my petrol recently and it seems to have improved matters. But
>I'm not sure if the treatment is actually cleaning anything or just
>reducing the knock due to its presence - perhaps it just reduces the
>overall octane level of the fuel.
>
>Anyway... you mentioned in one of your emails about applying battery power
>directly to the injectors instead of coming through the ignition switch.
>You have a MAC-11 ECU which is similar to my MAC-12D ECU and so you must
>have mechanical injectors which do not require any voltage at all. I don't
>understand exactly what you have done here. Could you explain, please?
>
>I also read Bernard's reply which suggests testing the AC waveform from the
>alternator with an oscilloscope - good idea, I'll try that tomorrow.
>
>Cheers, Mike.
>'89 200tqa
>
>
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