Just got the 93 tune from you guys and I must sat it makes a tremendous difference in the performance of the car. Had to drop the 2000-4000 spark advance by -1, but then it was great. My only problem is that the engine light stays on all the time. It goes off when I go back to the stock tune. Also, what is Global Spark?

 

Hi, it's impossible to know without reading out the code with your tuner. Let me know what the code is and email it to me.

Global spark changes spark everywhere, instead of just in one specific rpm range.

 

Which code are you reffering to? And where do I see it?

 

You would use the tuner to read the code, under the Vehicle info menu>read DTCs. Please email me your response, as I will be able to take care of that request much quicker.