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Here you are. Ignore the diagram that only shows six cylinders.
Im with RJK id say that since you're not having any issue once you unplug the sensor that the tune is probably not the problem.
If it throws a high map code it will run bad tps could be bad it shares the same earth as the map sensor too check the earth points and check the tps voltage output with the ignition on and engine not running should be 0.5v or close to it closed throttle and 4v+ at full throttle and gain volts smoothly through its travel .if its been fitted wrong it will have a big dead spot down low where volts won't change until the throttle is far enough open for it to start reading will cause the map high error code cause the ecu thinks it's idling but map says it's not
I thought maybe the closed loop was a bad tune.
U need the Vats removed off my other memcal so it will run in this car.
I can't guarantee it's not one of 'Ebay's finest..What's the other memcal from?
Basically the tune can't change by itself in the car, it's physically burnt into the memcal EPROM (i.e. read only to the ECU) which is the other reason I doubt it's a tune issue.