As many regular readers know, I’d had my Megasquirt MS1/Extra Rover V8 started within a couple turns of they crank. The next evening, with the wiring on the idle valve I tried again. Absolutely nothing. It didn’t even try to start.
To successfully use a Megasquirt you must use Tuner Studio to calibrate all your sensors. For a Rover V8 4.6L P38 the Coolant Temperature Sensor CTS has detailed calibration information available. Although the default Saab(Bosch) values are a great start.
The original plan was to utilise a John Earle Engineering tweaked ECU, but along came a bargain cheap MS1 Rover V8 Megasquirt made by extraEfi previously fitted to a 4.6Litre Stag. A separate purchase gave me various hoses, brackets and…
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