EFI upgrade

The factory fuel injection system is a very effective device for a standard, daily driven car with excellent fuel economy, considerable power, smooth driveability, effective cold start and idle control, reliability etc but does not allow adjustments as the engine is modified or as needs arise to modify the performance and running parameters.
An Adaptronic E420C aftermarket EFI ECU was chosen to take over our requirement for programmable EFI capability.
The Adaptronic ECU allowed us to simplify the fuel delivery by deleting the factory cold start injector as it could now electronically adjust injector duty cycle to compensate for cold starts.
Additionally the air flow meter could now be eliminated by utilising a MAP and IAT sensor for load metering - this is understood to remove a measurable airflow restriction to the throttle body and inlet tract.
The 19 year old dual duty factory fuel pump was ditched for a new high performance drop in Walbro 255lph intank fuel pump for reliability and to future proof our future fuelling needs.
The variable duty fuel pump ECU circuit was removed so the pump could run at a constant duty at 12 volts and the power feed to the pump was upgraded to minimise any voltage drops.
The Adaptronic ECU was custom wired to a gutted factory ECU case/plugs and plugged into the factory wiring loom with a sub loom for the added MAP and IAT sensors.
A wideband O2 sensor was fitted and fed into the Adaptronic, a laptop attached and after loading a preset map for this engine and adjusting inputs and outputs to suit our installation, the ECU allowed the engine to be fired up and was set to self learn based on the wideband O2 sensor feedback.
A few short trips adjusting the numerous load cells and the car was driveable.
The car was booked for dyno tuning with Mark at MRC dyno, was driven there and after it was tuned, was received back with significant driveability and power gains throughout the rev range.
The car picked up between 30 an 40 rear wheel kilowatts after being tuned with the Adaptronic and will now allow us to retune as and when we modify it in the future.