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The mkiv Supra Owners Club

problems with new ecu


Guest vipprotuning

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Guest vipprotuning

hi,

 

I´ve fitted a new apexi ecu to the car with boost gauge and so on. problem is with the new stuff fitted the car is not giving out power!! it goes dead after 3000rpm!! its not responding, it showed fault with the throttle sensor and i´ve changed that elsewell!! can anyone help?? iits a 95 j-spec TT, automatic.

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Guest vipprotuning

I´ve got the car here in spain and i don´t know if they have a clue... me less!! They put new ecu but i don´t know what they´ve done exactly. explain please mapping procedure?? i have no idea!!

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When you buy an ecu the come with a basic map to get the car to a "mapper" ot tunner who then set up the ecu which includes fueling, timing etc.

Driving the car or just running the car for long periods is a very risky thing to do.

 

For example you drive the car and the ecu needs to know how much fuel to supply to the cylinders at various engine speeds and various amounts of boost.

Not having enough fuel when on boost will causes detination/pre ignition etc which will lead to a piston melting, ring cracking and so on. :boom:

Please trailer it to a place that knows what they are doing.

Is it the Apexi PFC?

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