1989 Mk3 2.0i GA-70 Toyota Supra Twin Turbo

Specifications of my 2.0 GT Twin Turbo
Model	E-GA70-BLPVZ
Exterior	Super White 3 bodywork ( 043 paint code ) with `24 valve Twin Turbo` decals on doors.
	Narrow bodied
	Colour Appearance Package - white wraparound side moldings, colour keyed wheels
	3 piece rear spoiler with central brake light
	Full width rear lights
Interior	Maroon cloth upholstery ( FG32 trim code )
	Seat Trim Package-includes cloth Sport Seats, colour co-ordinated door trim & Power Seat Package
	Leather wrapped 3-Spoke steering wheel
	Digital dashboard with speedometer, tachometer; turbo boost, fuel level, coolant temperature, oil pressure gauges, trip computer, and TEMS status indication
	Memory type tilt and telescopic steering wheel
	Soft-touch automatic temperature control air conditioning and Flow-thru ventilation
Engine	Twin Turbocharged ( CT-12 ), 2.0 Litre ( 1988 cc ) in-line 6 Cylinder Twin Cam 24 valve engine with front mounted intercooler ( 1G-GTE )
	Engine oil cooler.
	Computer Controlled electronic fuel injection and ignition system
Trans	Electronically controlled 4-Speed automatic overdrive transmission with shift pattern selector, manual mode, and high performance lock-up torque converter ( A340-E )
	4.556:1 open differential ( G254 code )
Brakes	Power assisted ventilated 4-wheel disc brakes
Suspension	4-wheel independent suspension double wishbone w/gas-filled electronically adjustable shock absorbers, and front and rear stabilizer bars.
	Toyota Electronic Modulated Suspension System (TEMS)
Wheels	6" x 15" Toyota wheels with 195/60 x 15 tyres
Steering	Speed-sensing progressive-type power assisted rack-and-pinion steering
Electrics	Electric windows, with auto down / up
	Cruise control
	Central locking
	Dual integrated power remote-controlled mirrors with defogger and wide-view passenger side convex mirror, with electric fold-flat retracting mechanism
	Radio aerial built into rear window
Extras	Big bore stainless steel exhaust system removing catalytic converters
	Bleeder valve allowing 12 psi of boost
	HKS powerflow induction kit

History	I collected this 1989 Toyota Supra 2.0 GT Twin Turbo on 27th April 2001, it is a non-runner due to a major electrical failure, and has been stood up for almost 1 year. I had to hire a towing dolly, and persuade a friend to help me tow it home. ( approx 150 miles )
Fault	Engine will occasionally start, and then will only run for 1 to 2 seconds before cutting out.
Tests	Ignition spark - Spark fat and strong after HT lead replaced. Fuel pump - pump working well. Air Flow Meter - Unplugged AFM and ran engine, gave same fault as when plugged in. AFM swapped for similar AFM from 3.0i supra, which made no difference to the fault. 2.0i TT AFM tested on 3.0i engine and found to run acceptably. Oxygen Sensor - Upon disconnection of O2 sensor, the car will run nicely until it starts to warm up, then gets lumpy and eventually stops (I guess the ECU needs to trim the air/fuel ratio with info from the sensor). I changed the O2 sensor, but the car still won`t run. Diagnostic Code - The Toyota TCCS (Engine Management) will show a diagnostic fault code to tell of any detected faults. No code is showing up. Suspect ECU faulty.
Repairs	New 100 Amp fusible link fitted. Main HT lead replaced when original fell to pieces upon testing. New distributor cap fitted. Bonnet support strut replaced.