Weird problem

[Mazda Ebrahimi]

Gregory Chan wrote:
> 
> Hi all,
>          I have been on this list now for quite a while now and I
> have learnt much about fuel injections systems, however, I have a
> problem which I am at a loss to solve. The car is a Toyota Corolla
> GTS with a 4AG motor. I have 10.5:1 pistons, 288 cams and a tweaked
> stock EFI system.

What do you mean by tweaked.  Sounds like whoever recalibrated your
ECU also added a speed governor.  Does the ECU monitor which gear you 
are in or vehicle speed?  If it monitors vehicle speed, try disconnecting
the sensor just to see what happens!

Best Regards, Mazda